Proxy child descriptor mapping refused when a source fd equals its target (flaky the_public_gate_is_closed… test)

kayg commented

2026-11-07 00:22:47 +00:00

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Flaky unit test in infraternal-plugin-proxy: supervisor_tests::the_public_gate_is_closed_before_a_child_starts_and_cleared_after_it_stops (crates/plugins/proxy/src/supervisor_tests.rs:1109) intermittently fails with

start the child for a public route: Custom { kind: InvalidInput, error: "proxy child descriptor mapping is outside policy" }

It passes alone. The crate is unchanged from origin/dev on both branches where it failed.

Occurrences

J311 verify quick on fix-selinux-login-exec @ 398b57762 (compute01, 2026-11-07): 122 passed; 1 failed. Log: ~claude/.cache/codex-scratch/j311/quick-r2.log, lines ~1955–1999 (#401 comment with the verbatim table). The same test binary (infraternal_plugin_proxy-95927755d08b1130) afterwards, with no rebuild: the test alone 5/5 pass, the whole binary at --test-threads=3 6/6 pass (123/123).
J279 verify fast after the 2026-11-06 maintenance (#367, comment 83065): same test, same line, same error, 122 passed / 1 failed. Log: ~claude/j279/evidence/verify-quick-fast-6be7-post-maintenance.log.

Likely mechanism (unverified; not fixed here)

infraternal_shim::pty::prepare_proxy_child (crates/infraternal-shim/src/pty.rs:1050) refuses any mapping where source < 3 || target < 64 || source == target. The supervisor maps child descriptors starting at FIRST_PROXY_CHILD_FD = 64 (crates/plugins/proxy/src/supervisor.rs:42). When ~120 tests run in parallel in one process, fd numbers climb past 64. If the parent's listener for this route happens to be fd 64, the mapping is 64 → 64 and gets refused as outside policy. That explains why it fails only in loaded parallel runs and never alone.

It can also hit production: a busy server process with more than 64 open descriptors could allocate the listener at exactly the target number. If so, this is a real bug, not only a test flake.

Suggested direction (for whoever takes it)

Prove it first: in a test, open descriptors until the next fd is 64, then start a public route. That should fail deterministically. Then either dup each source above the highest target before mapping (fcntl(F_DUPFD_CLOEXEC, max_target + 1)), or treat source == target as "keep it and clear FD_CLOEXEC" inside the audited child hook. Keep the policy's other refusals.

Found by J311. It is not fixed on the #401 branches, per the orchestrator.

Flaky unit test in `infraternal-plugin-proxy`: `supervisor_tests::the_public_gate_is_closed_before_a_child_starts_and_cleared_after_it_stops` (`crates/plugins/proxy/src/supervisor_tests.rs:1109`) intermittently fails with ``` start the child for a public route: Custom { kind: InvalidInput, error: "proxy child descriptor mapping is outside policy" } ``` It passes alone. The crate is unchanged from origin/dev on both branches where it failed. ### Occurrences 1. **J311 `verify quick`** on `fix-selinux-login-exec` @ `398b57762` (compute01, 2026-11-07): `122 passed; 1 failed`. Log: `~claude/.cache/codex-scratch/j311/quick-r2.log`, lines ~1955–1999 (#401 comment with the verbatim table). The same test binary (`infraternal_plugin_proxy-95927755d08b1130`) afterwards, with no rebuild: the test alone **5/5 pass**, the whole binary at `--test-threads=3` **6/6 pass (123/123)**. 2. **J279 `verify fast`** after the 2026-11-06 maintenance (#367, comment 83065): same test, same line, same error, `122 passed / 1 failed`. Log: `~claude/j279/evidence/verify-quick-fast-6be7-post-maintenance.log`. ### Likely mechanism (unverified; not fixed here) `infraternal_shim::pty::prepare_proxy_child` (`crates/infraternal-shim/src/pty.rs:1050`) refuses any mapping where `source < 3 || target < 64 || source == target`. The supervisor maps child descriptors starting at `FIRST_PROXY_CHILD_FD = 64` (`crates/plugins/proxy/src/supervisor.rs:42`). When ~120 tests run in parallel in one process, fd numbers climb past 64. If the parent's listener for this route happens to *be* fd 64, the mapping is `64 → 64` and gets refused as outside policy. That explains why it fails only in loaded parallel runs and never alone. It can also hit production: a busy server process with more than 64 open descriptors could allocate the listener at exactly the target number. If so, this is a real bug, not only a test flake. ### Suggested direction (for whoever takes it) Prove it first: in a test, open descriptors until the next fd is 64, then start a public route. That should fail deterministically. Then either `dup` each source above the highest target before mapping (`fcntl(F_DUPFD_CLOEXEC, max_target + 1)`), or treat `source == target` as "keep it and clear `FD_CLOEXEC`" inside the audited child hook. Keep the policy's other refusals. Found by J311. It is not fixed on the #401 branches, per the orchestrator.

kayg referenced this issue

2026-11-07 04:17:38 +00:00

Person logins fail with 203/EXEC on SELinux-enforcing hosts (login binary copy labelled var_t) #401

kayg commented

2026-11-07 04:17:38 +00:00

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A second symptom, probably the same family. On J311's verify quick for fix-selinux-agent-exec @ 9c37ce626 (compute01, 2026-11-07, ~claude/.cache/codex-scratch/j311b/quick-3.log), a different proxy test failed:

test supervisor_tests::the_parent_death_signal_survives_the_credential_drop ... FAILED
panicked at crates/plugins/proxy/src/supervisor_tests.rs:879:73:
spawn probe: Os { code: 20, kind: NotADirectory, message: "Not a directory" }

ENOTDIR from the child's working-directory step fits the same descriptor-collision theory: the working_directory fd number gets reused or overwritten by a mapped descriptor in the child, so fchdir sees a non-directory. The same test binary (infraternal_plugin_proxy-95927755d08b1130) then passed 4/4 whole-binary runs at --test-threads=3. The proxy crate is unchanged from origin/dev.

A second symptom, probably the same family. On J311's `verify quick` for `fix-selinux-agent-exec` @ `9c37ce626` (compute01, 2026-11-07, `~claude/.cache/codex-scratch/j311b/quick-3.log`), a *different* proxy test failed: ``` test supervisor_tests::the_parent_death_signal_survives_the_credential_drop ... FAILED panicked at crates/plugins/proxy/src/supervisor_tests.rs:879:73: spawn probe: Os { code: 20, kind: NotADirectory, message: "Not a directory" } ``` `ENOTDIR` from the child's working-directory step fits the same descriptor-collision theory: the `working_directory` fd number gets reused or overwritten by a mapped descriptor in the child, so `fchdir` sees a non-directory. The same test binary (`infraternal_plugin_proxy-95927755d08b1130`) then passed 4/4 whole-binary runs at `--test-threads=3`. The proxy crate is unchanged from origin/dev.

kayg commented

2026-11-07 06:26:17 +00:00

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J341 starting on branch fix-proxy-fd-414, base 3644950b8 (origin/dev). Plan: deterministic fd-64 and overlap/cwd reproducers; audit shim/proxy/spawn descriptor moves; fix product mapping; 30 full proxy-binary runs; diagnose dev-02 nf_tables and streaming failure; verify quick on dev-02 then verify fast on compute01, foreground through build-slot. Estimate 3 hours excluding slot queues and full-gate build time. No merge/deploy. Evidence under ~/.cache/codex-scratch/j341/evidence on each build VM. Host package needs will be requested here, not installed.

J341 starting on branch `fix-proxy-fd-414`, base `3644950b8` (origin/dev). Plan: deterministic fd-64 and overlap/cwd reproducers; audit shim/proxy/spawn descriptor moves; fix product mapping; 30 full proxy-binary runs; diagnose dev-02 nf_tables and streaming failure; verify quick on dev-02 then verify fast on compute01, foreground through build-slot. Estimate 3 hours excluding slot queues and full-gate build time. No merge/deploy. Evidence under ~/.cache/codex-scratch/j341/evidence on each build VM. Host package needs will be requested here, not installed.

kayg commented

2026-11-07 06:29:23 +00:00

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J341 finding, Part B: dev-02 has /usr/sbin/nft, but ls /usr/sbin/iptables* returns ENOENT and command -v iptables-nft ip6tables-nft finds neither. crates/plugins/mesh/src/iptables.rs invokes absolute /usr/sbin/{iptables-nft,ip6tables-nft}{,-restore} paths, so extending PATH cannot fix it. The sandbox already appends /usr/sbin:/sbin. Request to orchestrator: install Ubuntu iptables host package (not doing that in this job). I will make missing backend prerequisites explicitly SKIP, preserving real failures when the tools exist. The streaming log shows hashed=false, input_progress=237568, staged_bytes=0 with a 624481-byte payload; investigating whether the bounded-tail fixture blocks before the selected decoder can emit its first block.

J341 finding, Part B: dev-02 has `/usr/sbin/nft`, but `ls /usr/sbin/iptables*` returns ENOENT and `command -v iptables-nft ip6tables-nft` finds neither. `crates/plugins/mesh/src/iptables.rs` invokes absolute `/usr/sbin/{iptables-nft,ip6tables-nft}{,-restore}` paths, so extending PATH cannot fix it. The sandbox already appends /usr/sbin:/sbin. Request to orchestrator: install Ubuntu `iptables` host package (not doing that in this job). I will make missing backend prerequisites explicitly SKIP, preserving real failures when the tools exist. The streaming log shows hashed=false, input_progress=237568, staged_bytes=0 with a 624481-byte payload; investigating whether the bounded-tail fixture blocks before the selected decoder can emit its first block.

kayg commented

2026-11-07 06:38:49 +00:00

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J341 finding, streaming: the unchanged gate binary reproduces the failure alone on dev-02: 0 passed / 1 failed in 30.05s, input_progress=237568, staged_bytes=0, expected_bytes=624481. Receipt: ~claude/.cache/codex-scratch/j341/evidence/streaming-baseline.log. dev-02 has gzip but no /usr/bin/zstd. A standalone gzip probe with the fixture's deterministic suffix reports compressed_size=299439, no output at prefix_sent=237568, and output available with only one final byte held (gzip-buffer-probe.json beside that log). The fixture held a <64KiB remaining chunk before gzip had enough input to flush its first output. Fixing the fixture to reserve exactly the final byte, preserving the progress-before-tail assertion and leaving the product codec path unchanged. Initial quick precheck caught a missing module doc comment, corrected; red Rust tests await dev-02's slot (quick-red-2.log).

J341 finding, streaming: the unchanged gate binary reproduces the failure alone on dev-02: 0 passed / 1 failed in 30.05s, input_progress=237568, staged_bytes=0, expected_bytes=624481. Receipt: `~claude/.cache/codex-scratch/j341/evidence/streaming-baseline.log`. dev-02 has gzip but no /usr/bin/zstd. A standalone gzip probe with the fixture's deterministic suffix reports compressed_size=299439, no output at prefix_sent=237568, and output available with only one final byte held (`gzip-buffer-probe.json` beside that log). The fixture held a <64KiB remaining chunk before gzip had enough input to flush its first output. Fixing the fixture to reserve exactly the final byte, preserving the progress-before-tail assertion and leaving the product codec path unchanged. Initial quick precheck caught a missing module doc comment, corrected; red Rust tests await dev-02's slot (`quick-red-2.log`).

kayg commented

2026-11-07 06:45:28 +00:00

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J341 deterministic red evidence: quick-red-2.log on dev-02 has all 3 new isolated regressions failing: listener dup2-pinned to fd64 is refused with InvalidInput/outside policy; swapping 64/65 produces a wrong-listener assertion; cwd pinned at64 overwritten by 65->64 returns ENOTDIR. Suite: 108 passed, 3 failed, 14 ignored. Workspace clippy passed. Product fix stages every source above the largest target before any dup2 and enters cwd before mapping; equal fd mappings become valid and lose CLOEXEC through the temporary copy. Auditing other mappings found isolated inheritance already allocates/owns its slots, readiness starts its source above target4, standard-handle detachment moves the source above2, and POSIX spawn uses its own dup2 file actions. An additional focused probe is queued for private spawn-error-pipe collisions with fixed free destinations. Gate environment fix is committed/pushed at 6480869a1; preflight now exits77 with the exact four missing host paths (privileged-dev02-skip.log). compute01 currently has only 18G free against its25G build floor; final fast will need space freed by its running jobs (I will not delete other jobs' targets).

J341 deterministic red evidence: `quick-red-2.log` on dev-02 has all 3 new isolated regressions failing: listener dup2-pinned to fd64 is refused with InvalidInput/outside policy; swapping 64/65 produces a wrong-listener assertion; cwd pinned at64 overwritten by 65->64 returns ENOTDIR. Suite: 108 passed, 3 failed, 14 ignored. Workspace clippy passed. Product fix stages every source above the largest target before any dup2 and enters cwd before mapping; equal fd mappings become valid and lose CLOEXEC through the temporary copy. Auditing other mappings found isolated inheritance already allocates/owns its slots, readiness starts its source above target4, standard-handle detachment moves the source above2, and POSIX spawn uses its own dup2 file actions. An additional focused probe is queued for private spawn-error-pipe collisions with fixed free destinations. Gate environment fix is committed/pushed at `6480869a1`; preflight now exits77 with the exact four missing host paths (`privileged-dev02-skip.log`). compute01 currently has only 18G free against its25G build floor; final fast will need space freed by its running jobs (I will not delete other jobs' targets).

kayg commented

2026-11-07 06:50:33 +00:00

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J341 additional mapping-path finding: a destination left free in the parent can become Rust Command's private exec-error pipe. Deterministic red fixture fills parent fds through63, maps a source to65, then execs a missing path: the child aborts in Rust's error-pipe write and the parent incorrectly receives an ExitStatus instead of ENOENT. Receipt: dev-02 ~/.cache/codex-scratch/j341/evidence/spawn-pipe-red.log (0 passed / 1 failed). The proxy now allocates and owns each destination before constructing/spawning Command; it uses actual allocated fd numbers, with the resource cap based on descriptor count rather than fd value. This follows the existing isolated-inheritance approach and prevents Command from claiming a destination. The shim accepts equal mappings and explicitly clears CLOEXEC on the common all-self-mapped path; mixed/overlapping lists use two-phase high-fd copies. The extra regression now reserves its destination through that same allocator and still requires NotFound from exec. Green quick is queued on dev-02. No dependency or foundational choice changed.

J341 additional mapping-path finding: a destination left free in the parent can become Rust Command's private exec-error pipe. Deterministic red fixture fills parent fds through63, maps a source to65, then execs a missing path: the child aborts in Rust's error-pipe write and the parent incorrectly receives an ExitStatus instead of ENOENT. Receipt: dev-02 `~/.cache/codex-scratch/j341/evidence/spawn-pipe-red.log` (0 passed / 1 failed). The proxy now allocates and owns each destination before constructing/spawning Command; it uses actual allocated fd numbers, with the resource cap based on descriptor count rather than fd value. This follows the existing isolated-inheritance approach and prevents Command from claiming a destination. The shim accepts equal mappings and explicitly clears CLOEXEC on the common all-self-mapped path; mixed/overlapping lists use two-phase high-fd copies. The extra regression now reserves its destination through that same allocator and still requires NotFound from exec. Green quick is queued on dev-02. No dependency or foundational choice changed.

kayg commented

2026-11-07 06:58:55 +00:00

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J341 checkpoint: pushed fix-proxy-fd-414 at WIP 51ba63492 (finalize after green checks). All four mapping regressions have red receipts; normal-path destinations are now parent-owned and self-mapped, mixed mappings stage through high fds. Current build target: dev-02 ~/worktrees/j341/target (2.2G at last check), exactly one target. Green quick retry is foreground-queued in quick-green-2.log; the previous retry stopped on a wrapper-signature fmt mismatch from my file sync, now corrected. Remaining: green quick, focused streaming integration, 30 full proxy runs on compute01 using default test parallelism, real-root proxy proof, final compute01 fast. Baseline cross-reference: J329 #410 comment83499, unmodified dev fba745051, 2/12 failed, original receipt ~/j329/proxy-flake.log (copied for this job). Isolated setup benchmark on perf VM through perf-run: 7 alternating rounds x200 real execs; 34-fd median old332701ns/new338595ns (+5894ns), sample ranges overlap; one-fd medians338015ns/328216ns (noise, not a speedup claim). This is a syscall-sequence harness, not whole-product latency. Source: compute01 ~/.cache/codex-scratch/j341/evidence/fd-spawn-cost.c; perf VM ~/j341-fd-cost/{results.log,summary.json,perf-run-.before.txt,perf-run-.after.txt}; copied under code ~/.cache/codex-scratch/j341/evidence/j341-fd-cost/. No steady-state descriptors added: 34 inherited slots remain34 per child, or1700 across50 children; only mixed remaps use temporary high slots before exec. compute01 disk has recovered above its build floor; its queue is still longer than dev-02.

J341 checkpoint: pushed `fix-proxy-fd-414` at WIP `51ba63492` (finalize after green checks). All four mapping regressions have red receipts; normal-path destinations are now parent-owned and self-mapped, mixed mappings stage through high fds. Current build target: dev-02 `~/worktrees/j341/target` (2.2G at last check), exactly one target. Green quick retry is foreground-queued in `quick-green-2.log`; the previous retry stopped on a wrapper-signature fmt mismatch from my file sync, now corrected. Remaining: green quick, focused streaming integration, 30 full proxy runs on compute01 using default test parallelism, real-root proxy proof, final compute01 fast. Baseline cross-reference: J329 #410 comment83499, unmodified dev fba745051, 2/12 failed, original receipt ~/j329/proxy-flake.log (copied for this job). Isolated setup benchmark on perf VM through perf-run: 7 alternating rounds x200 real execs; 34-fd median old332701ns/new338595ns (+5894ns), sample ranges overlap; one-fd medians338015ns/328216ns (noise, not a speedup claim). This is a syscall-sequence harness, not whole-product latency. Source: compute01 ~/.cache/codex-scratch/j341/evidence/fd-spawn-cost.c; perf VM ~/j341-fd-cost/{results.log,summary.json,perf-run-*.before.txt,perf-run-*.after.txt}; copied under code ~/.cache/codex-scratch/j341/evidence/j341-fd-cost/. No steady-state descriptors added: 34 inherited slots remain34 per child, or1700 across50 children; only mixed remaps use temporary high slots before exec. compute01 disk has recovered above its build floor; its queue is still longer than dev-02.

kayg commented

2026-11-07 07:09:41 +00:00

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J341 progress: finalized and pushed three atomic commits on fix-proxy-fd-414, head 27c74d5f98f1cebae922895e12139b1081c37bed (gate environment b9db1a2aa; product fd fix69ab78fed; streaming fixture27c74d5f9). dev-02 verify quick PASS for infraternal-shim, infraternal-plugin-proxy and infraternal-plugin-ssh; all four fd regressions green. Corrected streaming integration:10 full invocations,0 failures. Receipt ~claude/.cache/codex-scratch/j341/evidence/quick-green-3.log ends STREAMING_SWEEP runs=10 failures=0 and J341_QUICK_STREAMING_EXIT=0; per-run logs streaming-green-{1..10}.log. Receipts copied to code ~/.cache/codex-scratch/j341/evidence/dev02/; dev-02 target deleted (free disk43G afterwards). compute01 source is clean at that head; launcher confirmed cargo1.99.0. Foreground final work is queued (position10 at last status) in compute01 ~/.cache/codex-scratch/j341/evidence/fast.log, with exact unmodified origin/dev static-size measurements before restoring the implementation and running verify fast. Still pending: final fast,30 default-parallelism proxy-binary runs on compute01 against J329's2/12 baseline, and real-root credential-drop proof. No merge/deploy or host package install performed.

J341 progress: finalized and pushed three atomic commits on `fix-proxy-fd-414`, head `27c74d5f98f1cebae922895e12139b1081c37bed` (gate environment b9db1a2aa; product fd fix69ab78fed; streaming fixture27c74d5f9). dev-02 `verify quick` PASS for infraternal-shim, infraternal-plugin-proxy and infraternal-plugin-ssh; all four fd regressions green. Corrected streaming integration:10 full invocations,0 failures. Receipt `~claude/.cache/codex-scratch/j341/evidence/quick-green-3.log` ends `STREAMING_SWEEP runs=10 failures=0` and `J341_QUICK_STREAMING_EXIT=0`; per-run logs streaming-green-{1..10}.log. Receipts copied to code `~/.cache/codex-scratch/j341/evidence/dev02/`; dev-02 target deleted (free disk43G afterwards). compute01 source is clean at that head; launcher confirmed cargo1.99.0. Foreground final work is queued (position10 at last status) in compute01 `~/.cache/codex-scratch/j341/evidence/fast.log`, with exact unmodified origin/dev static-size measurements before restoring the implementation and running verify fast. Still pending: final fast,30 default-parallelism proxy-binary runs on compute01 against J329's2/12 baseline, and real-root credential-drop proof. No merge/deploy or host package install performed.

kayg commented

2026-11-07 07:30:37 +00:00

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J341 verification update: compute01 admitted the run at 13:54 IST. The SSH output pipeline disconnected during the unchanged-dev static baseline; the build briefly survived, then exited without a result marker. This is not a gate result. Original receipt: ~claude/.cache/codex-scratch/j341/evidence/fast.log. Requeued the same head with output written directly to fast-resume.log and SSH keepalives, reusing its one existing target directory; no second slot/build is running. Final fast,30 proxy runs and root proof remain pending. No source changes.

kayg commented

2026-11-07 07:57:39 +00:00

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J341 queue/disk blocker: retry fast-resume.log has reached queue position2 (one job ahead), but compute01 df now reports16G free against the25G build-slot floor. No code failure or gate result. Please reclaim finished jobs’ targets when safe; I will not delete other jobs’ files. My only compute01 target is ~/worktrees/j341/target, containing the interrupted baseline build for reuse; dev-02 target was already deleted. Current head remains27c74d5f98f1cebae922895e12139b1081c37bed. Continuing foreground wait.

kayg commented

2026-11-07 08:07:47 +00:00

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J341 urgent host-capacity update: compute01 reached100% disk use (0 available). I deleted only my own interrupted ~/worktrees/j341/target (1.7G) to relieve immediate pressure; logs/receipts remain outside the checkout. The retry is still queued and cannot enter below the25G floor. Please reclaim finished jobs’ targets when safe. No final fast/proxy30/root result exists yet. Local receipt: ~/.cache/codex-scratch/j341/evidence/compute-disk-block-latest.log.

kayg commented

2026-11-07 08:35:03 +00:00

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J341 checkpoint: compute01 capacity recovered; retry admitted at14:38 IST and is actively building the exact unchanged-dev static baseline before restoring fix-proxy-fd-414 for verify fast. Foreground command: build-slot nice -n10 nix develop . -c bash ~/.cache/codex-scratch/j341/compute-gate.sh; direct log ~/.cache/codex-scratch/j341/evidence/fast-resume.log. Final head remains27c74d5f98f1cebae922895e12139b1081c37bed, baseline3644950b8e4b5dddeefba350f97a3892189ca193. One target ~/worktrees/j341/target has been recreated by this admitted run. No final fast/proxy30/root result yet. dev-02 quick and10/10 streaming remain green; dev-02 target absent. Continuing foreground wait; no merge/deploy.

kayg commented

2026-11-07 09:02:27 +00:00

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J341 verification milestone: exact origin/dev3644950b8 static baselines completed: x86_64 musl27,787,280 bytes (sha2561ffc5b4deb3c9940e9cecfac0037bc15aa14e51e18c1d403450d3dfb2eb07360), aarch64 musl25,000,776 bytes (sha256596696ec38f08fd53b3016bcaa240ecda91381f63ee17233148d2666bda66c23). Receipt compute01 ~/.cache/codex-scratch/j341/evidence/baseline-static.json. Script restored final head27c74d5f98f1cebae922895e12139b1081c37bed and verify fast is running in the foreground (fast-resume.log). Artifact/migration rows have passed; no final gate result yet. Proxy30 and fresh-root proof still pending. One target ~/worktrees/j341/target; no merge/deploy.

kayg commented

2026-11-07 09:38:50 +00:00

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J341 checkpoint: final compute01 verify fast is in the workspace test row. CLI compile-out, workspace clippy and intervening fixture checks completed without reported failures; completed test batches so far report zero failures. Full receipt is still being written to ~/.cache/codex-scratch/j341/evidence/fast-resume.log; no final gate result yet. Both exact-dev static baselines are recorded in baseline-static.json. Head remains27c74d5f98f1cebae922895e12139b1081c37bed, one target ~/worktrees/j341/target. Next: remaining gate rows,30 default-parallelism proxy runs in this same slot, then release/clean the target and perform the fresh-root proof. No merge/deploy.

kayg commented

2026-11-07 09:48:55 +00:00

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J341 gate finding: workspace install integration binary finished96 passed /9 failed /2 ignored in303.03s. Streaming regression PASSED. Failing cleanup/recovery tests report synthetic remote exit73, SetupRunning assertions, or two300s timeouts. Full trace: compute01 ~/.cache/codex-scratch/j341/evidence/fast-resume.log (failure sections after install binary). Fast is continuing its remaining rows; this is not a green gate. Next slot will run the required30 full proxy binaries on the fix, then rebuild recovery-helper and the full install integration binary on exact unmodified origin/dev3644950b8 to prove or disprove the unrelated baseline failure. No code change in response yet.

kayg commented

2026-11-07 10:23:37 +00:00

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J341 gate receipt, verification still in progress. Final head27c74d5f98f1cebae922895e12139b1081c37bed. compute01 fast EXIT1: only the workspace test row failed (SSH install96 passed/9 failed/2 ignored); privileged integration101/101 and both static targets passed. TypeScript phase did not run after the Rust failure. Exact slice deltas vs origin/dev3644950b8: x86_64+512 bytes (27,787,792); aarch64+640 bytes (25,001,416). Receipts copied to code ~/.cache/codex-scratch/j341/evidence/compute01/{fast-resume.log,fast-summary.txt,baseline-static.json,static-delta.json}. Required proxy30 and exact-dev install reproduction are foreground queued in compute01 supplement.log; fresh-root proof follows. Removed only completed release artifacts and unrelated test executables from my target to restore disk admission capacity; remaining one target ~/worktrees/j341/target. No merge/deploy. Verbatim gate table:

+---------------------------+--------------+
| Rust gate                 | Result       |
+---------------------------+--------------+
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| migration names           | PASS         |
| migration tooling tests   | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| Traefik component manifest | PASS         |
| release component publication | PASS         |
| test                      | FAIL (101)   |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| privileged integration    | PASS         |
| probe release exclusion   | PASS         |
| nightly fuzz reporter     | PASS         |
| static builds             | PASS         |
+---------------------------+--------------+
VERIFY_EXIT=1
J341_COMPUTE_EXIT=1

J341 gate receipt, verification still in progress. Final head27c74d5f98f1cebae922895e12139b1081c37bed. compute01 fast EXIT1: only the workspace test row failed (SSH install96 passed/9 failed/2 ignored); privileged integration101/101 and both static targets passed. TypeScript phase did not run after the Rust failure. Exact slice deltas vs origin/dev3644950b8: x86_64+512 bytes (27,787,792); aarch64+640 bytes (25,001,416). Receipts copied to code ~/.cache/codex-scratch/j341/evidence/compute01/{fast-resume.log,fast-summary.txt,baseline-static.json,static-delta.json}. Required proxy30 and exact-dev install reproduction are foreground queued in compute01 supplement.log; fresh-root proof follows. Removed only completed release artifacts and unrelated test executables from my target to restore disk admission capacity; remaining one target ~/worktrees/j341/target. No merge/deploy. Verbatim gate table: ```text +---------------------------+--------------+ | Rust gate | Result | +---------------------------+--------------+ | Nix Cargo vendoring | PASS | | fmt | PASS | | migration names | PASS | | migration tooling tests | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | Traefik component manifest | PASS | | release component publication | PASS | | test | FAIL (101) | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | doc coverage ratchet | PASS | | shape lints off (D351) | PASS | | doc comments on diff | PASS | | fixed test waits | PASS | | privileged integration | PASS | | probe release exclusion | PASS | | nightly fuzz reporter | PASS | | static builds | PASS | +---------------------------+--------------+ VERIFY_EXIT=1 J341_COMPUTE_EXIT=1 ```

kayg commented

2026-11-07 10:33:01 +00:00

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Owner

J341 host-capacity blocker recurred after fast completed: compute01 now9.9G free, below25G admission floor. Proxy30 + exact-dev SSH install reproduction are still foreground queued at position2 in supplement.log. I pruned my completed release artifacts and251 unrelated test executables; remaining target is12G of required proxy/SSH caches at ~/worktrees/j341/target. Please reclaim finished jobs’ targets when safe. Root proof will follow only after this one slot run finishes and my normal target is deleted. Gate receipt and full table are in comment84281; no new code changes.

kayg commented

2026-11-07 10:44:33 +00:00

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Owner

J341 proxy requirement complete:30 full default-parallelism proxy test-binary runs,0 failures,123 passed per run on16 CPUs, RUST_TEST_THREADS unset. Compare J329’s unmodified-dev2/12 failure baseline (#410 comment83499). Head27c74d5f98f1cebae922895e12139b1081c37bed. compute01 proxy-sweep.json + proxy-full-{1..30}.log; copied to code ~/.cache/codex-scratch/j341/evidence/compute01/. Important gate follow-up: standalone install binary on exact unmodified dev3644950b8 passed105/105 (2 ignored), baseline-install.log. This DOES NOT prove the9 full-gate SSH failures are unrelated. Comparing the original gate executable and unchanged-dev workspace feature resolution next in install-context.log. Root proof remains pending; no final handoff yet.

kayg commented

2026-11-07 10:48:48 +00:00

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Owner

J341 gate investigation update: original full-gate install executable passed105/105 after rebuilding its helper (context-head-install.log); exact unchanged dev3644950b8 with workspace feature resolution also passed105/105 (context-base-install.log), same install-c34091ccce3082f2 target. Nine earlier failures are NOT reproduced on baseline, so I am not classifying them as unrelated. Context/helper hashes are in install-context.log, copied to code evidence/compute01/. Rebased the same three atomic commits onto current devaf033d0b4 (SELinux/UI merges); pushed new headf7536682b37b8242ef0c427b020f9ca6b75b7d23. Fresh quick on dev-02 is foreground queued in quick-rebased.log; fresh final fast and proxy30 on this head follow on compute01, then root proof. Prior0/30 proxy result and +512/+640-byte static measurements remain historical receipts for head27c74d5f9 against original base3644950b8. No patch changed during rebase; no merge/deploy.

kayg commented

2026-11-07 10:57:37 +00:00

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Owner

J341 rebased verification: dev-02 quick PASS onf7536682b37b8242ef0c427b020f9ca6b75b7d23, compared againstaf033d0b4. Receipt quick-rebased.log ends J341_REBASED_QUICK_EXIT=0; copied to code evidence/dev02/. dev-02 target deleted (74G free afterwards). Fresh compute01 quick+fast+proxy30 is now foreground running in ~/.cache/codex-scratch/j341/evidence/fast-rebased.log; exact launcher cargo1.99.0 and script syntax checked before admission. One remaining target ~/worktrees/j341/target. Fresh root clone already matches this head; proof follows after compute verification and normal-target cleanup. Prior failed fast remains recorded, not reclassified as a baseline failure. No new source changes, merge or deploy.

kayg commented

2026-11-07 11:32:48 +00:00

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Owner

J341 fresh-gate checkpoint onf7536682b: dev-02 quick and compute01 quick PASS. Fresh workspace test row completed without reported failures; install integration105 passed /0 failed /2 ignored, including streaming. The earlier9 install failures remain an unreproduced historical gate failure, not a proven dev baseline defect. Compute01 is now in shim process-per-user; privileged/static/TypeScript rows and fresh-head proxy30 still pending. Foreground log ~/.cache/codex-scratch/j341/evidence/fast-rebased.log. One target ~/worktrees/j341/target; dev-02 target deleted. Root clone/launcher ready on the same head; no root build yet, no merge/deploy.

kayg commented

2026-11-07 12:09:50 +00:00

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Owner

J341 checkpoint onf7536682b: fresh workspace tests, process-per-user shim suite, lint/doc rows and privileged integration all completed without reported failures. x86_64 static checks passed at27,792,496 bytes; aarch64 static build is still active. Final fast result, TypeScript, fresh-head proxy30 and real-root proof are still pending. Foreground log compute01 ~/.cache/codex-scratch/j341/evidence/fast-rebased.log. One target ~/worktrees/j341/target. dev-02 quick passed and its target is deleted. No source changes, merge or deploy since the rebase.

kayg commented

2026-11-07 12:18:59 +00:00

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Owner

J341 final verification milestone: fresh verify fast PASS (VERIFY_EXIT=0, all24 Rust rows PASS and TypeScript completed) onf7536682b37b8242ef0c427b020f9ca6b75b7d23. Fresh-head proxy sweep30/30 full binaries PASS,123 tests/run, default16-CPU parallelism,0 failures. Current receipts copied to code ~/.cache/codex-scratch/j341/evidence/compute01-rebased/{fast-rebased.log,fast-summary.txt,proxy-sweep.json,proxy-full-1.log..proxy-full-30.log,rebased-static.json}. Normal compute target deleted; no remaining executable under that target was found (normal-cleanup.log). Fresh real-root proof is now foreground queued/running via scripts/root-slot-hold in /root/j341-proxy-proof, same head; root log /root/j341-root-proof.log. It builds root-owned artifacts with4 jobs and debug symbols disabled, runs four fd regressions plus the exact parent-death-signal credential-drop test. Root proof and cleanup remain pending; no merge/deploy.

kayg commented

2026-11-07 12:33:26 +00:00

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Owner

J348 independent correctness review starting. Review branch review-j348, implementation head f7536682b3, base af033d0b4; current origin/dev 21b3c84ced. Plan: audit every shim/proxy/spawn mapping and gate-environment diff, reproduce deterministic reds on unmodified dev and greens on head on dev-02, then 10 full proxy runs. Estimate 60 minutes of active review excluding slot/build waits. No merge, deploy or push. Reviewer exception in common brief: focused tests only, author fast receipt will be inspected. Evidence will be under ~/.cache/codex-scratch/j348/evidence on dev-02 and copied to control host.

J348 independent correctness review starting. Review branch review-j348, implementation head f7536682b37b8242ef0c427b020f9ca6b75b7d23, base af033d0b4; current origin/dev 21b3c84ceddd571e1580f679009860e32b37beb9. Plan: audit every shim/proxy/spawn mapping and gate-environment diff, reproduce deterministic reds on unmodified dev and greens on head on dev-02, then 10 full proxy runs. Estimate 60 minutes of active review excluding slot/build waits. No merge, deploy or push. Reviewer exception in common brief: focused tests only, author fast receipt will be inspected. Evidence will be under ~/.cache/codex-scratch/j348/evidence on dev-02 and copied to control host.

kayg commented

2026-11-07 12:38:11 +00:00

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Owner

J341 root-proof queue checkpoint: final head f7536682b3 remains unchanged. Dev-02 quick, compute01 fast and current-head30/30 proxy runs all passed (receipts in comment84500). The required fresh root-owned proof has waited about18 minutes and is first in the compute01 build-slot queue. No proof test has run yet; foreground wait remains active. Normal compute01/dev-02 targets are deleted. No extra builds queued, merge, deploy, or host package install. Root log /root/j341-root-proof.log; root clone /root/j341-proxy-proof will be deleted after the proof.

J341 root-proof queue checkpoint: final head f7536682b37b8242ef0c427b020f9ca6b75b7d23 remains unchanged. Dev-02 quick, compute01 fast and current-head30/30 proxy runs all passed (receipts in comment84500). The required fresh root-owned proof has waited about18 minutes and is first in the compute01 build-slot queue. No proof test has run yet; foreground wait remains active. Normal compute01/dev-02 targets are deleted. No extra builds queued, merge, deploy, or host package install. Root log /root/j341-root-proof.log; root clone /root/j341-proxy-proof will be deleted after the proof.

kayg commented

2026-11-07 12:42:24 +00:00

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Owner

J348 verdict: REQUEST CHANGES

Reviewed fix-proxy-fd-414 at f7536682b3, merge base af033d0b4. Rechecked the remote branch before posting: the head is unchanged. These two findings are pre-existing gaps in the audited proxy boundary, not regressions introduced by J341's remapping algorithm. They fail the explicit no-unmapped-fds / no-post-fork-allocation requirements of this review.

P1: unrelated inheritable parent descriptors still reach the proxy child. spawn_proxy_command (supervisor.rs:879–887) calls prepare_child_without_control, prepare_parent_bound_child, then prepare_proxy_child. The first only marks fd3 CLOEXEC (pty.rs:1515–1530); the mapping hook never establishes an allowlist. An unrelated descriptor without CLOEXEC therefore survives exec, potentially carrying a server file/socket capability across the proxy identity boundary. My isolated test creates such a descriptor with F_DUPFD(200), reserves one legitimate proxy descriptor, uses the exact production callback order, and verifies both the legitimate descriptor and the unwanted one in an exec'd Python process. It deterministically fails with unmapped parent descriptor survived proxy exec. Install the existing only_standard_descriptors / public inherit_only_standard_descriptors hook before admitting the mapped set; preserve the spawn-error pipe by marking rather than prematurely closing it.

Evidence: review-mapping-tests.log: 5 passed / 1 failed; unmapped-leak.log has the isolated failure. Failing test: proxy_exec_excludes_unmapped_inheritable_descriptors on review-j348.

P2: owner-mismatch failures allocate inside pre_exec. pty.rs:1159 constructs io::Error::other("proxy owner exited before child startup") after fork; the earlier parent-bound hook does the same at line1030. This allocates a boxed custom error and can deadlock on allocator state inherited from another parent thread. The success path's preallocated Vec and integer-only remapping are safe, but that does not cover the error path. Use an allocation-free error representation, such as io::Error::from_raw_os_error, in both hooks. My guarded-global-allocator test uses a nested fork solely to deterministically force the actual product hook's owner-mismatch branch while keeping its immediate parent alive. The allocator writes a syscall-only marker and exits99 if called after fork. It emits J348_POSTFORK_ALLOCATION_IN_PROXY_OWNER_ERROR and the test fails, 0 passed / 1 failed, in postfork-alloc-test.log. This is a forced branch probe, not a claim to have reproduced an allocator deadlock in a running server.

Reproducers are committed and pushed only to review-j348, commit 1dd3c32e4. No product changes, merge, deployment, or push to dev. No P3 findings.

What passed:

The descriptor-move algorithm itself: self-maps clear CLOEXEC; mixed mappings snapshot every source above the maximum destination before any dup2; occupied destinations exclude Command's private pipes; cwd and cgroup.procs are consumed before remapping. A supplementary mixed self-map + 65/66 cycle + repeated source test passed and observed only the four admitted descriptors after exec when the existing allowlist hook was installed first. Temporary copies do not survive.
Grepped all Rust crates for dup2, dup3, F_DUPFD, pre_exec and spawn file actions. Audited shim inheritance (owned dynamic slots, self-map F_SETFD), readiness source duplication, detached standard handles, PTY stdio via Command, and embedded POSIX-spawn fd3 actions. The readiness fixed-destination helper is test-only; production inheritance owns its slots. POSIX spawn's dup2 action handles equal descriptors and has no permutation here. macOS proxy preparation explicitly refuses the unsupported boundary.
Independent deterministic red/green on dev-02: unmodified origin/dev 21b3c84ced, with only the author's first three test fixtures overlaid, produced 0 passed / 3 failed: pinned fd64 outside-policy refusal, wrong swapped listener, and ENOTDIR for overwritten cwd (dev-red.log). The fourth old-path reproducer was adapted to use the original unreserved numeric target because dev has no reservation API; it aborted in Rust's error-pipe write and returned ExitStatus instead of ENOENT (dev-spawn-pipe-red.log). All four author regressions pass on the exact review head (head-green.log).
Independent flake spot-check: 10/10 full proxy test binaries passed, 123 tests/run, default parallelism on dev-02's10 CPUs, RUST_TEST_THREADS unset (proxy-sweep.txt, proxy-full-1.log through proxy-full-10.log). This supplements J341's30/30 current-head compute01 receipt; it does not replace it or imply a statistical guarantee.
dev-02 environment change is a SKIP, not a repaired environment. All four absolute iptables-nft/ip6tables-nft frontend and restore paths are missing (host-frontends.log). The real preflight exits77 and prints those exact paths plus the package remedy (gate-env-preflight.log). The reason is honest, and the summary does not claim PASS. It skips the entire selected privileged row (install, mesh, proxy, shim), so this gives no privileged coverage on dev-02. Its fixture suite passed60 tests (gate-env-tests.log). Host packages were not installed.

All heavy commands ran on dev-02 through build-slot with CARGO_INCREMENTAL=0, jobs3, one target. Exact launcher nix develop ~/worktrees/j348 -c cargo --version succeeded before queueing. Both VM slot statuses were checked. My target and temporary state directory have been deleted; all review runs have ended.

Reviewer instruction in BRIEF-COMMON forbids rerunning quick/fast. I independently read the author's exact-head gate receipt, rather than rerunning it. Source: control host ~/.cache/codex-scratch/j341/evidence/compute01-rebased/{fast-summary.txt,fast-rebased.log}. Verbatim author gate table and terminal markers:

+---------------------------+--------------+
| Rust gate                 | Result       |
+---------------------------+--------------+
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| migration names           | PASS         |
| migration tooling tests   | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| Traefik component manifest | PASS         |
| release component publication | PASS         |
| test                      | PASS         |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| privileged integration    | PASS         |
| probe release exclusion   | PASS         |
| nightly fuzz reporter     | PASS         |
| static builds             | PASS         |
+---------------------------+--------------+
VERIFY_EXIT=0
PROXY_SWEEP runs=30 failures=0
J341_REBASED_COMPUTE_EXIT=0

The author's separate fresh real-root proof was still queued in comment84540; I do not claim it passed. My review tests are deliberately red for the two findings and are not a green product gate.

Evidence bundle: ~/.cache/codex-scratch/j348/j348-review-evidence.tar.gz on control host and dev-02; individual logs/source/launchers under ~/.cache/codex-scratch/j348/evidence/ on both. Bundle attached below.

REQUEST CHANGES — head f7536682b3.

J348 verdict: **REQUEST CHANGES** Reviewed `fix-proxy-fd-414` at **f7536682b37b8242ef0c427b020f9ca6b75b7d23**, merge base af033d0b4. Rechecked the remote branch before posting: the head is unchanged. These two findings are pre-existing gaps in the audited proxy boundary, not regressions introduced by J341's remapping algorithm. They fail the explicit no-unmapped-fds / no-post-fork-allocation requirements of this review. **P1: unrelated inheritable parent descriptors still reach the proxy child.** `spawn_proxy_command` (supervisor.rs:879–887) calls `prepare_child_without_control`, `prepare_parent_bound_child`, then `prepare_proxy_child`. The first only marks fd3 CLOEXEC (`pty.rs:1515–1530`); the mapping hook never establishes an allowlist. An unrelated descriptor without CLOEXEC therefore survives exec, potentially carrying a server file/socket capability across the proxy identity boundary. My isolated test creates such a descriptor with `F_DUPFD(200)`, reserves one legitimate proxy descriptor, uses the exact production callback order, and verifies both the legitimate descriptor and the unwanted one in an exec'd Python process. It deterministically fails with `unmapped parent descriptor survived proxy exec`. Install the existing `only_standard_descriptors` / public `inherit_only_standard_descriptors` hook before admitting the mapped set; preserve the spawn-error pipe by marking rather than prematurely closing it. Evidence: `review-mapping-tests.log`: **5 passed / 1 failed**; `unmapped-leak.log` has the isolated failure. Failing test: `proxy_exec_excludes_unmapped_inheritable_descriptors` on `review-j348`. **P2: owner-mismatch failures allocate inside pre_exec.** `pty.rs:1159` constructs `io::Error::other("proxy owner exited before child startup")` after fork; the earlier parent-bound hook does the same at line1030. This allocates a boxed custom error and can deadlock on allocator state inherited from another parent thread. The success path's preallocated Vec and integer-only remapping are safe, but that does not cover the error path. Use an allocation-free error representation, such as `io::Error::from_raw_os_error`, in both hooks. My guarded-global-allocator test uses a nested fork solely to deterministically force the actual product hook's owner-mismatch branch while keeping its immediate parent alive. The allocator writes a syscall-only marker and exits99 if called after fork. It emits `J348_POSTFORK_ALLOCATION_IN_PROXY_OWNER_ERROR` and the test fails, **0 passed / 1 failed**, in `postfork-alloc-test.log`. This is a forced branch probe, not a claim to have reproduced an allocator deadlock in a running server. Reproducers are committed and pushed only to **review-j348**, commit 1dd3c32e4. No product changes, merge, deployment, or push to dev. No P3 findings. What passed: - The descriptor-move algorithm itself: self-maps clear CLOEXEC; mixed mappings snapshot every source above the maximum destination before any dup2; occupied destinations exclude Command's private pipes; cwd and cgroup.procs are consumed before remapping. A supplementary mixed self-map + 65/66 cycle + repeated source test passed and observed only the four admitted descriptors after exec when the existing allowlist hook was installed first. Temporary copies do not survive. - Grepped all Rust crates for dup2, dup3, F_DUPFD, pre_exec and spawn file actions. Audited shim inheritance (owned dynamic slots, self-map F_SETFD), readiness source duplication, detached standard handles, PTY stdio via Command, and embedded POSIX-spawn fd3 actions. The readiness fixed-destination helper is test-only; production inheritance owns its slots. POSIX spawn's dup2 action handles equal descriptors and has no permutation here. macOS proxy preparation explicitly refuses the unsupported boundary. - **Independent deterministic red/green on dev-02:** unmodified origin/dev **21b3c84ceddd571e1580f679009860e32b37beb9**, with only the author's first three test fixtures overlaid, produced **0 passed / 3 failed**: pinned fd64 outside-policy refusal, wrong swapped listener, and ENOTDIR for overwritten cwd (`dev-red.log`). The fourth old-path reproducer was adapted to use the original unreserved numeric target because dev has no reservation API; it aborted in Rust's error-pipe write and returned ExitStatus instead of ENOENT (`dev-spawn-pipe-red.log`). All **four author regressions pass** on the exact review head (`head-green.log`). - **Independent flake spot-check: 10/10 full proxy test binaries passed, 123 tests/run**, default parallelism on dev-02's10 CPUs, RUST_TEST_THREADS unset (`proxy-sweep.txt`, `proxy-full-1.log` through `proxy-full-10.log`). This supplements J341's30/30 current-head compute01 receipt; it does not replace it or imply a statistical guarantee. - **dev-02 environment change is a SKIP, not a repaired environment.** All four absolute iptables-nft/ip6tables-nft frontend and restore paths are missing (`host-frontends.log`). The real preflight exits77 and prints those exact paths plus the package remedy (`gate-env-preflight.log`). The reason is honest, and the summary does not claim PASS. It skips the entire selected privileged row (install, mesh, proxy, shim), so this gives no privileged coverage on dev-02. Its fixture suite passed60 tests (`gate-env-tests.log`). Host packages were not installed. All heavy commands ran on dev-02 through build-slot with CARGO_INCREMENTAL=0, jobs3, one target. Exact launcher `nix develop ~/worktrees/j348 -c cargo --version` succeeded before queueing. Both VM slot statuses were checked. My target and temporary state directory have been deleted; all review runs have ended. Reviewer instruction in BRIEF-COMMON forbids rerunning quick/fast. I independently read the author's exact-head gate receipt, rather than rerunning it. Source: control host `~/.cache/codex-scratch/j341/evidence/compute01-rebased/{fast-summary.txt,fast-rebased.log}`. Verbatim author gate table and terminal markers: ```text +---------------------------+--------------+ | Rust gate | Result | +---------------------------+--------------+ | Nix Cargo vendoring | PASS | | fmt | PASS | | migration names | PASS | | migration tooling tests | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | Traefik component manifest | PASS | | release component publication | PASS | | test | PASS | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | doc coverage ratchet | PASS | | shape lints off (D351) | PASS | | doc comments on diff | PASS | | fixed test waits | PASS | | privileged integration | PASS | | probe release exclusion | PASS | | nightly fuzz reporter | PASS | | static builds | PASS | +---------------------------+--------------+ VERIFY_EXIT=0 PROXY_SWEEP runs=30 failures=0 J341_REBASED_COMPUTE_EXIT=0 ``` The author's separate fresh real-root proof was still queued in comment84540; I do not claim it passed. My review tests are deliberately red for the two findings and are not a green product gate. Evidence bundle: `~/.cache/codex-scratch/j348/j348-review-evidence.tar.gz` on control host and dev-02; individual logs/source/launchers under `~/.cache/codex-scratch/j348/evidence/` on both. Bundle attached below. **REQUEST CHANGES — head f7536682b37b8242ef0c427b020f9ca6b75b7d23.**

j348-review-evidence.tar.gz

24 KiB

kayg commented

2026-11-07 12:45:55 +00:00

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Owner

J341 implementing J348 comment84548 on fix-proxy-fd-414, base/head f7536682b3. Both findings confirmed in source. Imported review-j348 fixtures only; red runs precede product edits. Plan: red reproductions; allowlist plus allocation-free errors; audit shim/session spawn hooks; dev-02 quick then compute01 fast, refreshed proxy sweep and root proof. Estimate45-75min execution plus shared slot waits. Superseded old-head root proof was terminated by its recorded process group97454; no test result claimed. Root-owned target retained solely for refreshed root proof, normal targets remain deleted.

J341 implementing J348 comment84548 on fix-proxy-fd-414, base/head f7536682b37b8242ef0c427b020f9ca6b75b7d23. Both findings confirmed in source. Imported review-j348 fixtures only; red runs precede product edits. Plan: red reproductions; allowlist plus allocation-free errors; audit shim/session spawn hooks; dev-02 quick then compute01 fast, refreshed proxy sweep and root proof. Estimate45-75min execution plus shared slot waits. Superseded old-head root proof was terminated by its recorded process group97454; no test result claimed. Root-owned target retained solely for refreshed root proof, normal targets remain deleted.

kayg commented

2026-11-07 12:52:31 +00:00

Author

Owner

J341 spawn audit for J348 follow-up, still on f7536682b product code:

Linux/macOS PTY shell/program constructors in shim pty.rs already install only_standard_descriptors before their credential/terminal hooks. Session launch in infraternal-agent/src/sessions.rs:1124 likewise establishes the allowlist before lifeline/login admission. The inspected post-fork code uses errno/last_os_error rather than boxed custom owner errors.
Both owner-mismatch branches are confined to pty.rs prepare_parent_bound_child and prepare_proxy_child; guarded-allocator tests now force each independently.
Additional pre-existing paths without a complete descriptor allowlist, listed rather than expanded into this proxy patch: sessions::isolated manager commands (sessions.rs:863, used for systemctl at163/1740); startup_guard::execute (startup_guard.rs:55); restart Image::probe (restart_image.rs:152); login worker loginctl discovery/termination (shim/login.rs:635/663); embedded POSIX spawn (server/embedded.rs:3424, closes/remaps named fds but does not reject every unrelated inherited fd). General prepare_child is a signal policy only; remaining non-session callers in lifecycle/install/remote/ssh likewise do not gain an allowlist from that hook. No claim that these paths have been repaired. The POSIX-spawn API runs no Rust pre_exec owner callback.
Scope choice: install the existing allowlist inside Linux prepare_proxy_child immediately before its mapping hook, ensuring every caller admits only stdio plus the mapped set. This preserves Command's exec-error pipe until exec and avoids requiring callers to remember a second policy hook. Existing isolated/direct-exec APIs retain their documented fd3 policy; listed auxiliary gaps can be tracked separately.

Imported failing tests are queued red-first on dev-02; product code is unchanged. Old-head root build was stopped; root-owned target is retained for the refreshed proof only.

J341 spawn audit for J348 follow-up, still on f7536682b product code: - Linux/macOS PTY shell/program constructors in shim pty.rs already install only_standard_descriptors before their credential/terminal hooks. Session launch in infraternal-agent/src/sessions.rs:1124 likewise establishes the allowlist before lifeline/login admission. The inspected post-fork code uses errno/last_os_error rather than boxed custom owner errors. - Both owner-mismatch branches are confined to pty.rs prepare_parent_bound_child and prepare_proxy_child; guarded-allocator tests now force each independently. - Additional pre-existing paths without a complete descriptor allowlist, listed rather than expanded into this proxy patch: sessions::isolated manager commands (sessions.rs:863, used for systemctl at163/1740); startup_guard::execute (startup_guard.rs:55); restart Image::probe (restart_image.rs:152); login worker loginctl discovery/termination (shim/login.rs:635/663); embedded POSIX spawn (server/embedded.rs:3424, closes/remaps named fds but does not reject every unrelated inherited fd). General prepare_child is a signal policy only; remaining non-session callers in lifecycle/install/remote/ssh likewise do not gain an allowlist from that hook. No claim that these paths have been repaired. The POSIX-spawn API runs no Rust pre_exec owner callback. - Scope choice: install the existing allowlist inside Linux prepare_proxy_child immediately before its mapping hook, ensuring every caller admits only stdio plus the mapped set. This preserves Command's exec-error pipe until exec and avoids requiring callers to remember a second policy hook. Existing isolated/direct-exec APIs retain their documented fd3 policy; listed auxiliary gaps can be tracked separately. Imported failing tests are queued red-first on dev-02; product code is unchanged. Old-head root build was stopped; root-owned target is retained for the refreshed proof only.

kayg commented

2026-11-07 12:57:39 +00:00

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J341 red evidence for J348 findings: unchanged f7536682b product plus review fixtures failed deterministically on dev-02. Descriptor leak:0 passed/1 failed, AssertionError unmapped parent descriptor survived proxy exec. Guarded allocator extended to each hook:0 passed/2 failed, both emitted J348_POSTFORK_ALLOCATION_IN_PROXY_OWNER_ERROR and exited99. Both cargo invocations exit101. Receipts on control ~/.cache/codex-scratch/j341/evidence/dev02/{review-fd-red.log,review-alloc-red.log}. Product now establishes the existing only_standard_descriptors policy inside prepare_proxy_child before mapping; both owner-mismatch errors return raw ESRCH without allocation. Six mapping tests and both allocator probes, then verify quick, are foreground queued on dev-02. No new head until validation.

J341 red evidence for J348 findings: unchanged f7536682b product plus review fixtures failed deterministically on dev-02. Descriptor leak:0 passed/1 failed, AssertionError unmapped parent descriptor survived proxy exec. Guarded allocator extended to each hook:0 passed/2 failed, both emitted J348_POSTFORK_ALLOCATION_IN_PROXY_OWNER_ERROR and exited99. Both cargo invocations exit101. Receipts on control ~/.cache/codex-scratch/j341/evidence/dev02/{review-fd-red.log,review-alloc-red.log}. Product now establishes the existing only_standard_descriptors policy inside prepare_proxy_child before mapping; both owner-mismatch errors return raw ESRCH without allocation. Six mapping tests and both allocator probes, then verify quick, are foreground queued on dev-02. No new head until validation.

kayg commented

2026-11-07 13:01:07 +00:00

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J341 review fixes pushed: head9c1b545f425a567d29dd4babde014209a10b5853, branch fix-proxy-fd-414, rebased onto dev21b3c84ceddd571e1580f679009860e32b37beb9. Atomic review commits c93adef42 (descriptor allowlist) and9c1b545f4 (allocation-free owner errors). Six mapping regressions PASS; both guarded allocator regressions PASS. First quick stopped on missing D345 documentation for the touched pre-existing parent helper; doc added. Receipt dev02/review-green-quick-doc-fail.log. Fresh exact-head quick is foreground queued on dev-02, then compute01 fast/root and refreshed30-run sweep. Auxiliary spawn gaps are explicitly listed in comment84570. No merge/deploy. VM branch sync uses public direct fetch because its origin is a local mirror missing the job branch; premature queue was stopped before execution and no result claimed.

J341 review fixes pushed: head9c1b545f425a567d29dd4babde014209a10b5853, branch fix-proxy-fd-414, rebased onto dev21b3c84ceddd571e1580f679009860e32b37beb9. Atomic review commits c93adef42 (descriptor allowlist) and9c1b545f4 (allocation-free owner errors). Six mapping regressions PASS; both guarded allocator regressions PASS. First quick stopped on missing D345 documentation for the touched pre-existing parent helper; doc added. Receipt dev02/review-green-quick-doc-fail.log. Fresh exact-head quick is foreground queued on dev-02, then compute01 fast/root and refreshed30-run sweep. Auxiliary spawn gaps are explicitly listed in comment84570. No merge/deploy. VM branch sync uses public direct fetch because its origin is a local mirror missing the job branch; premature queue was stopped before execution and no result claimed.

kayg commented

2026-11-07 13:16:27 +00:00

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J341 current head454431e5479206a328aa61b97ac41e634db25b90 pushed on fix-proxy-fd-414. Dev-02 verify quick PASS: workspace clippy and changed-package tests PASS, J341_REVIEW_QUICK_EXIT=0 and launcher exit0. Six mapping regressions and both allocator probes PASS on this exact head. Receipt control ~/.cache/codex-scratch/j341/evidence/dev02/review-final-quick.log. Imported fixture lint corrections (fallible setup returns Result, explicit raw pointer) are folded into the atomic allocation-error commit. The preceding clippy failure remains in review-final-quick-first.log. Dev-02 target deleted (review-dev02-cleanup.log). Required compute01 quick+fast and refreshed30-run sweep are now foreground queued through the checked launcher; log compute01 ~/.cache/codex-scratch/j341/evidence/review-fast.log. Both VM slot statuses checked; dev-02 is free, but compute01 is explicitly required for this gate. Root proof follows after normal target cleanup. No merge/deploy/host package install.

kayg commented

2026-11-07 13:31:33 +00:00

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J341 queue checkpoint on454431e5479206a328aa61b97ac41e634db25b90: dev-02 quick/focused checks passed and its target is deleted (comment84606). Required compute01 quick+fast has waited about14min, advancing from queue position7 to3 at the latest status. Foreground SSH wait remains active; log ~/.cache/codex-scratch/j341/evidence/review-fast.log. No fast result yet on this head. Root clone is pinned to the same head, no root job queued and no root target remains. Normal compute target will be the only J341 target on that VM; cleanup precedes the separate root proof. No source changes since the fixture lint amendment, no merge/deploy.

kayg commented

2026-11-07 13:50:36 +00:00

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J341 verification checkpoint: unchanged pushed head454431e5479206a328aa61b97ac41e634db25b90. Dev-02 quick and all focused review regressions passed; no dev-02 target remains. Required compute01 gate has waited about33min and is queue position3 at latest status, foreground session still active. No fast result yet for this head, no root job queued, no root target retained. Receipts and exact run state remain ~/.cache/codex-scratch/j341/evidence/ and ~/.cache/codex-scratch/j341/REVIEW-HANDOFF.md on control; gate log compute01 ~/.cache/codex-scratch/j341/evidence/review-fast.log. No code changes, merge, deploy or package install since84606.

kayg commented

2026-11-07 14:23:34 +00:00

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J341 active-gate checkpoint: head454431e5479206a328aa61b97ac41e634db25b90 acquired compute01 slot1/5 after about49min waiting. Exact head/base21b3 confirmed in review-fast.log. Compute01 quick has passed workspace checking and is building changed-package test binaries; the quiet section is active vendored OpenSSL compilation, confirmed from the J341 process tree. No current-head fast result yet. Dev-02 quick/focused regressions passed, its target is deleted, root proof remains unqueued with no root target. Normal compute target ~/worktrees/j341/target is the only target on that VM. No source changes, merge/deploy or host package install. Foreground log ~/.cache/codex-scratch/j341/evidence/review-fast.log.

kayg commented

2026-11-07 14:48:44 +00:00

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J341 gate checkpoint on454431e5479206a328aa61b97ac41e634db25b90: compute01 quick PASS; full verify fast is in workspace integration tests. SSH install binary install-bdcbdaaca1745741 passed107/0failed/2ignored, including streaming::decoded_image_and_hash_advance_before_the_transfer_tail_is_released. Both reported proxy supervisor tests passed in quick and the workspace run. No FAILED test-result summary seen in the inspected workspace output. Remaining fast rows/static/TypeScript, refreshed30-run sweep and separate root proof are still pending. Foreground log ~/.cache/codex-scratch/j341/evidence/review-fast.log. One normal target ~/worktrees/j341/target; no root/dev02 target. Earlier pre-rebase9-install-failure history remains unreproduced, not claimed as a repaired baseline defect. No source changes or merge/deploy.

kayg commented

2026-11-07 15:18:18 +00:00

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J341 gate milestone on454431e5479206a328aa61b97ac41e634db25b90: workspace tests finished without a failed test summary; fd leak regression and both guarded allocator probes PASS in workspace. SSH install107/0failed/2ignored including streaming. Process-per-user row completed; privileged integration now101/101 PASS (403s receipt), including nf_tables coverage on compute01. Fast is entering probe release exclusion, then static builds/TypeScript. Final gate status, fresh30-run sweep and real-root proof remain pending. Foreground log ~/.cache/codex-scratch/j341/evidence/review-fast.log. One normal target, no root/dev02 target; no source changes, merge/deploy or package install.

kayg commented

2026-11-07 15:53:41 +00:00

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J341 static checkpoint on454431e5479206a328aa61b97ac41e634db25b90: x86_64 static checks passed, PT_INTERP absent,size receipt is27802000 bytes (27,802,000). Aarch64 static compilation is active; no final fast result yet. Workspace and101/101 privileged integration passed as recorded in84774; current SSH install107/0failed/2ignored. Fresh-head30-run sweep follows the gate, then normal target cleanup, added-allowlist syscall benchmark and separate real-root proof. Foreground log ~/.cache/codex-scratch/j341/evidence/review-fast.log; unchanged source/head, one normal target, no merge/deploy.

kayg commented

2026-11-07 16:13:57 +00:00

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J341 finding: exact head 454431e547 completed compute01 verify fast with VERIFY_EXIT=0, after dev-02 quick passed. The following proxy sweep passed runs 1–3 and failed run 4 (122 passed, 1 failed): a_holder_that_is_not_an_installed_traefik_is_named_in_the_error. Its fixture shell reported exec: .../other-program: Text file busy before supervisor evaluation. This fixture is byte-for-byte unchanged from dev (zero-byte foreign-holder-fixture-diff.patch). No existing test edited. Initial 1/4 failed-run receipt retained in /home/kayg/.cache/codex-scratch/j341/evidence/compute01-review-initial/; full gate and failure in review-fast-sweep-failure.log. Retrying 30 full binary invocations with default parallelism, keeping this failure visible. Root proof and added-allowlist cost measurement remain pending.

J341 finding: exact head 454431e5479206a328aa61b97ac41e634db25b90 completed compute01 verify fast with VERIFY_EXIT=0, after dev-02 quick passed. The following proxy sweep passed runs 1–3 and failed run 4 (122 passed, 1 failed): a_holder_that_is_not_an_installed_traefik_is_named_in_the_error. Its fixture shell reported `exec: .../other-program: Text file busy` before supervisor evaluation. This fixture is byte-for-byte unchanged from dev (zero-byte foreign-holder-fixture-diff.patch). No existing test edited. Initial 1/4 failed-run receipt retained in /home/kayg/.cache/codex-scratch/j341/evidence/compute01-review-initial/; full gate and failure in review-fast-sweep-failure.log. Retrying 30 full binary invocations with default parallelism, keeping this failure visible. Root proof and added-allowlist cost measurement remain pending.

kayg commented

2026-11-07 16:45:11 +00:00

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J341 checkpoint: the unchanged-code retry acquired compute01 slot3 after about29min and has passed14 full proxy binaries so far at454431e5479206a328aa61b97ac41e634db25b90, default parallelism, RUST_TEST_THREADS unset. Current remote receipt: /home/claude/.cache/codex-scratch/j341/evidence/review-sweep-retry.log. Earlier ETXTBSY fixture failure remains preserved and reported in84833. Root proof is prepared separately; launcher cargo1.99.0 checked. Its TMPDIR is /tmp because Nix’s default root-only0700 temporary parent would prevent the dropped proxy identity from traversing the fixture, independent of the product boundary. No repository test changes.

kayg commented

2026-11-07 16:48:58 +00:00

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J341 finding: current-head retry completed30/30 full proxy binaries,123 passed/0 failed/0 ignored each, default parallelism and RUST_TEST_THREADS unset. Receipt: /home/kayg/.cache/codex-scratch/j341/evidence/compute01-review/{proxy-sweep.json,proxy-full-1..30.log,review-sweep-retry.log}, SWEEP_RETRY_EXIT=0. Including the earlier ETXTBSY fixture batch, current-head total is33 passing runs plus1 failing run, not0 failures/34. J329 baseline remains2 failed/12. Added-allowlist cost measured on perf VM through perf-run:7 alternating rounds ×200 real execs/variant, at34fds previous/allowlist median337201/345462ns (+8261ns), overlapping ranges333933–349226/333813–351018ns; at1fd341044/335947ns. Isolated syscall/exec harness only, no whole-product latency claim;0 steal, PERF_EXIT=0. Receipts: evidence/review-fd-cost/{results.log,summary.json,before/after host snapshots}; source review-fd-spawn-cost.c. Normal targets removed on both VMs; perf binary removed. Root-owned exact-head proof is now separately queued through root-slot-hold, no other J341 build running.

j341-compute01-review-proxy-sweep.json

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j341-review-fd-cost-summary.json

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j341-review-fd-cost-results.log

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j341-compute01-review-initial-proxy-full-4.log

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kayg commented

2026-11-07 17:11:48 +00:00

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J341 review follow-up, branch fix-proxy-fd-414, head 454431e5479206a328aa61b97ac41e634db25b90 (pushed). No merge/deployment/host package changes.

P1: Linux proxy preparation now establishes the existing standard-descriptor allowlist before admitting mapped fds. It marks CLOEXEC rather than closing Command’s exec-error pipe. Imported J348 leak/permutation regressions pass. P2: both owner-mismatch hooks return raw ESRCH without allocating. Guarded-allocator probes force each hook independently and pass. Atomic commits: c93adef424 and 454431e547.

Red-first evidence: dev02/review-fd-red.log (0 passed, 1 failed: unrelated FD200 survives); dev02/review-alloc-red.log (0 passed, 2 failed, allocation marker and exit 99). Exact-head quick: dev02/review-final-quick.log, J341_REVIEW_QUICK_EXIT=0 and J341_REVIEW_QUICK_LAUNCH_EXIT=0; six mapping checks and both allocator probes pass.

Compute01 full fast: review-fast-sweep-failure.log, VERIFY_EXIT=0. Privileged integration: 101/101; SSH install: 107 passed, 0 failed, 2 ignored including streaming. Static bytes: x86_64 27,802,000; aarch64 25,009,992; both PT_INTERP absent. Current hashes: compute01-review-initial/review-static.json. Historical original-slice +512B/+640B size deltas were measured against the original base, not this rebased head.

Sweep: J329 unchanged-dev baseline: 2 failed runs/12. Previous f753 head: 30/30 passed. Current-head initial batch: 3 passes then 1 failure: unchanged holder fixture’s exec returned ETXTBSY before supervisor evaluation, 122 passed / 1 failed. Preserved in compute01-review-initial/proxy-full-1..4.log and zero-byte foreign-holder-fixture-diff.patch; not hidden or claimed fixed. Retry: 30/30 passed, 123 tests/run, 0 ignored, default parallelism, RUST_TEST_THREADS unset. Total across the two current-head batches: 33 passing runs and 1 failing run, not 0/34. Receipts: compute01-review/proxy-sweep.json, proxy-full-1..30.log, review-sweep-retry.log (SWEEP_RETRY_EXIT=0).

Dev-02 preflight: /usr/sbin/nft exists and PATH includes sbin, but all four iptables-nft/ip6tables-nft binary/restore frontends are missing. SKIP77 reports the missing host frontends honestly. Host iptables package install remains requested from orchestrator; none installed. dev02/review-host-frontends.log reconfirms absence. Streaming fixture now holds the final compressed byte, preserving real early decode/hash/staging checks; historical 10/10 complete streaming invocations passed, and current full gate passes it.

Other spawn paths: main PTY/session launch already allowlist. Additional pre-existing gaps are explicitly listed, not fixed: sessions::isolated manager/systemctl, startup_guard::execute, restart Image::probe, shim loginctl discovery/termination, embedded POSIX spawn, and general signal-only prepare_child consumers in lifecycle/install/remote/ssh. No other owner-mismatch allocating pre_exec errors found. Audit: comment 84570 and spawn-audit.md.

Real-root proof passed on the exact head: uid 0 with full host uid/gid maps; six mapping regressions, both guarded-allocator probes, and the exact credential-drop parent-death test passed. J341_ROOT_PROOF_EXIT=0 and ROOT_SLOT_EXIT=0. Nix’s root-only temporary parent was avoided by setting TMPDIR=/tmp in the proof launcher. Receipts: review-root-proof.log, review-root-proof.sh, review-root-host-identity.log, review-root-launcher.log.

Performance: isolated syscall/real-exec harness on perf VM via perf-run, 7 alternating rounds x 200 spawns/variant, 1 and 34 descriptors. Previous/allowlist medians: 341044/335947 ns at 1 fd; 337201/345462 ns at 34 fds (+8261 ns). Ranges overlap (34 fds: previous 333933–349226 ns; allowlist 333813–351018 ns); this is not a whole-product latency measurement. Host snapshots show 0 steal; PERF_EXIT=0. Artifacts: review-fd-cost/{results.log,summary.json,perf-run-.before.txt,perf-run-.after.txt}, source review-fd-spawn-cost.c. The added close_range(CLOEXEC) enforces capability isolation; no speedup claim.

Normal targets removed on both VMs (review-dev02-cleanup.log, review-compute-cleanup.log); perf binary removed (review-perf-cleanup.log). Root clone, script and target removed; proof log retained (review-root-cleanup.log). All J341 executions and copies have ended. Control worktree is clean; public branch head confirmed equal to the full SHA above.

All evidence is under /home/kayg/.cache/codex-scratch/j341/evidence/. Verbatim current gate table:

+---------------------------+--------------+
| Rust gate                 | Result       |
+---------------------------+--------------+
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| migration names           | PASS         |
| migration tooling tests   | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| Traefik component manifest | PASS         |
| release component publication | PASS         |
| test                      | PASS         |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| privileged integration    | PASS         |
| probe release exclusion   | PASS         |
| nightly fuzz reporter     | PASS         |
| static builds             | PASS         |
+---------------------------+--------------+
VERIFY_EXIT=0

Verbatim terminal receipts:

J341_REVIEW_QUICK_EXIT=0
J341_REVIEW_QUICK_LAUNCH_EXIT=0
PROXY_SWEEP runs=30 failures=0
SWEEP_RETRY_EXIT=0
ROOT_PROOF_HEAD=454431e5479206a328aa61b97ac41e634db25b90 UID=0
test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 122 filtered out; finished in 0.10s
test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 122 filtered out; finished in 0.08s
J341_ROOT_PROOF_EXIT=0
ROOT_SLOT_EXIT=0

The current fast log also ends its protocol suite with:

 50 pass
 0 fail
 77253 expect() calls
Ran 50 tests across 13 files. [8.66s]
VERIFY_EXIT=0

The refreshed sweep/performance summaries and the earlier failing fixture log are attached to comment 84867. Remaining follow-ups: orchestrator-owned host package install for dev-02; listed auxiliary spawn gaps; unresolved ETXTBSY fixture-exec failure. No existing supervisor test was patched to obtain the passing sweep.

J341 review follow-up, branch `fix-proxy-fd-414`, head `454431e5479206a328aa61b97ac41e634db25b90` (pushed). No merge/deployment/host package changes. P1: Linux proxy preparation now establishes the existing standard-descriptor allowlist before admitting mapped fds. It marks CLOEXEC rather than closing Command’s exec-error pipe. Imported J348 leak/permutation regressions pass. P2: both owner-mismatch hooks return raw ESRCH without allocating. Guarded-allocator probes force each hook independently and pass. Atomic commits: c93adef424c19a148dcdf57075edf58e3b601dec and 454431e5479206a328aa61b97ac41e634db25b90. Red-first evidence: dev02/review-fd-red.log (0 passed, 1 failed: unrelated FD200 survives); dev02/review-alloc-red.log (0 passed, 2 failed, allocation marker and exit 99). Exact-head quick: dev02/review-final-quick.log, J341_REVIEW_QUICK_EXIT=0 and J341_REVIEW_QUICK_LAUNCH_EXIT=0; six mapping checks and both allocator probes pass. Compute01 full fast: review-fast-sweep-failure.log, VERIFY_EXIT=0. Privileged integration: 101/101; SSH install: 107 passed, 0 failed, 2 ignored including streaming. Static bytes: x86_64 27,802,000; aarch64 25,009,992; both PT_INTERP absent. Current hashes: compute01-review-initial/review-static.json. Historical original-slice +512B/+640B size deltas were measured against the original base, not this rebased head. Sweep: J329 unchanged-dev baseline: 2 failed runs/12. Previous f753 head: 30/30 passed. Current-head initial batch: 3 passes then 1 failure: unchanged holder fixture’s exec returned ETXTBSY before supervisor evaluation, 122 passed / 1 failed. Preserved in compute01-review-initial/proxy-full-1..4.log and zero-byte foreign-holder-fixture-diff.patch; not hidden or claimed fixed. Retry: 30/30 passed, 123 tests/run, 0 ignored, default parallelism, RUST_TEST_THREADS unset. Total across the two current-head batches: 33 passing runs and 1 failing run, not 0/34. Receipts: compute01-review/proxy-sweep.json, proxy-full-1..30.log, review-sweep-retry.log (SWEEP_RETRY_EXIT=0). Dev-02 preflight: /usr/sbin/nft exists and PATH includes sbin, but all four iptables-nft/ip6tables-nft binary/restore frontends are missing. SKIP77 reports the missing host frontends honestly. Host iptables package install remains requested from orchestrator; none installed. dev02/review-host-frontends.log reconfirms absence. Streaming fixture now holds the final compressed byte, preserving real early decode/hash/staging checks; historical 10/10 complete streaming invocations passed, and current full gate passes it. Other spawn paths: main PTY/session launch already allowlist. Additional pre-existing gaps are explicitly listed, not fixed: sessions::isolated manager/systemctl, startup_guard::execute, restart Image::probe, shim loginctl discovery/termination, embedded POSIX spawn, and general signal-only prepare_child consumers in lifecycle/install/remote/ssh. No other owner-mismatch allocating pre_exec errors found. Audit: comment 84570 and spawn-audit.md. Real-root proof passed on the exact head: uid 0 with full host uid/gid maps; six mapping regressions, both guarded-allocator probes, and the exact credential-drop parent-death test passed. J341_ROOT_PROOF_EXIT=0 and ROOT_SLOT_EXIT=0. Nix’s root-only temporary parent was avoided by setting TMPDIR=/tmp in the proof launcher. Receipts: review-root-proof.log, review-root-proof.sh, review-root-host-identity.log, review-root-launcher.log. Performance: isolated syscall/real-exec harness on perf VM via perf-run, 7 alternating rounds x 200 spawns/variant, 1 and 34 descriptors. Previous/allowlist medians: 341044/335947 ns at 1 fd; 337201/345462 ns at 34 fds (+8261 ns). Ranges overlap (34 fds: previous 333933–349226 ns; allowlist 333813–351018 ns); this is not a whole-product latency measurement. Host snapshots show 0 steal; PERF_EXIT=0. Artifacts: review-fd-cost/{results.log,summary.json,perf-run-*.before.txt,perf-run-*.after.txt}, source review-fd-spawn-cost.c. The added close_range(CLOEXEC) enforces capability isolation; no speedup claim. Normal targets removed on both VMs (review-dev02-cleanup.log, review-compute-cleanup.log); perf binary removed (review-perf-cleanup.log). Root clone, script and target removed; proof log retained (review-root-cleanup.log). All J341 executions and copies have ended. Control worktree is clean; public branch head confirmed equal to the full SHA above. All evidence is under /home/kayg/.cache/codex-scratch/j341/evidence/. Verbatim current gate table: ```text +---------------------------+--------------+ | Rust gate | Result | +---------------------------+--------------+ | Nix Cargo vendoring | PASS | | fmt | PASS | | migration names | PASS | | migration tooling tests | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | Traefik component manifest | PASS | | release component publication | PASS | | test | PASS | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | doc coverage ratchet | PASS | | shape lints off (D351) | PASS | | doc comments on diff | PASS | | fixed test waits | PASS | | privileged integration | PASS | | probe release exclusion | PASS | | nightly fuzz reporter | PASS | | static builds | PASS | +---------------------------+--------------+ VERIFY_EXIT=0 ``` Verbatim terminal receipts: ```text J341_REVIEW_QUICK_EXIT=0 J341_REVIEW_QUICK_LAUNCH_EXIT=0 PROXY_SWEEP runs=30 failures=0 SWEEP_RETRY_EXIT=0 ROOT_PROOF_HEAD=454431e5479206a328aa61b97ac41e634db25b90 UID=0 test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 122 filtered out; finished in 0.10s test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 122 filtered out; finished in 0.08s J341_ROOT_PROOF_EXIT=0 ROOT_SLOT_EXIT=0 ``` The current fast log also ends its protocol suite with: ```text 50 pass 0 fail 77253 expect() calls Ran 50 tests across 13 files. [8.66s] VERIFY_EXIT=0 ``` The refreshed sweep/performance summaries and the earlier failing fixture log are attached to comment 84867. Remaining follow-ups: orchestrator-owned host package install for dev-02; listed auxiliary spawn gaps; unresolved ETXTBSY fixture-exec failure. No existing supervisor test was patched to obtain the passing sweep.

j341-review-fast-table.txt

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j341-review-root-proof.log

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j341-review-root-proof.sh.txt

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j341-review-root-host-identity.log

361 B

j341-review-fd-red.log

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j341-review-alloc-red.log

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j341-review-final-quick.log

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j341-spawn-audit.md

1.9 KiB

j341-review-fd-spawn-cost.c.txt

1.9 KiB

kayg commented

2026-11-07 17:21:25 +00:00

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J352 independent correctness review starting. Review target fix-proxy-fd-414 @ 454431e547; current origin/dev 6b1bdb81b3. Plan: inspect delta and all post-fork paths; run J348 red/green regressions on dev-02 through a checked build-slot launcher; investigate holder ETXTBSY against unchanged dev; rank auxiliary spawn gaps and post verdict. Estimate 90 minutes execution plus slot waits. No code fixes, push, merge or deploy; focused review tests only per common brief.

J352 independent correctness review starting. Review target fix-proxy-fd-414 @ 454431e5479206a328aa61b97ac41e634db25b90; current origin/dev 6b1bdb81b3d8eb90716643e7d1bd03f61ce37827. Plan: inspect delta and all post-fork paths; run J348 red/green regressions on dev-02 through a checked build-slot launcher; investigate holder ETXTBSY against unchanged dev; rank auxiliary spawn gaps and post verdict. Estimate 90 minutes execution plus slot waits. No code fixes, push, merge or deploy; focused review tests only per common brief.

kayg commented

2026-11-07 17:29:56 +00:00

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J352 findings checkpoint: independent dev-02 red/green completed through checked build-slot launcher. Current origin/dev 6b1bdb81b: leak test 0 passed/1 failed (unmapped inheritable fd survives), guarded owner probes 0 passed/2 failed with J348 allocation marker. Exact head 454431e547: all six mapping checks pass (including ENOENT error-pipe check), both owner probes pass; expanded allocator guard also passes full production callback chain on self/mixed-map success, ENOTDIR cwd, EBADF cgroup writer, and invalid source/self-map errors. Baseline lacks reservation API, so only its leak fixture uses a parent-occupied distinct target64; production callbacks unchanged. Controlled writer-fork probe produces ETXTBSY on BOTH versions despite FD_CLOEXEC=1; exec succeeds after the sibling exec releases the write description. This establishes the pre-existing mechanism, not its statistical frequency. No missing-CLOEXEC product writer established. Original supervisor fixture has empty dev/head diff. Evidence on control and dev-02 under ~/.cache/codex-scratch/J352/evidence/{dev-fd-red,dev-alloc-red,head-fd-green,head-alloc-green,head-expanded-alloc,dev-writer,head-writer}.log; source/launchers retained in parent directory. All four iptables-nft frontends exist now (host-frontends.log); selected privileged row is running separately, no skip/pass claim yet. Author exact-head fast receipt independently inspected: VERIFY_EXIT=0.

J352 findings checkpoint: independent dev-02 red/green completed through checked build-slot launcher. Current origin/dev 6b1bdb81b: leak test 0 passed/1 failed (unmapped inheritable fd survives), guarded owner probes 0 passed/2 failed with J348 allocation marker. Exact head 454431e5479206a328aa61b97ac41e634db25b90: all six mapping checks pass (including ENOENT error-pipe check), both owner probes pass; expanded allocator guard also passes full production callback chain on self/mixed-map success, ENOTDIR cwd, EBADF cgroup writer, and invalid source/self-map errors. Baseline lacks reservation API, so only its leak fixture uses a parent-occupied distinct target64; production callbacks unchanged. Controlled writer-fork probe produces ETXTBSY on BOTH versions despite FD_CLOEXEC=1; exec succeeds after the sibling exec releases the write description. This establishes the pre-existing mechanism, not its statistical frequency. No missing-CLOEXEC product writer established. Original supervisor fixture has empty dev/head diff. Evidence on control and dev-02 under ~/.cache/codex-scratch/J352/evidence/{dev-fd-red,dev-alloc-red,head-fd-green,head-alloc-green,head-expanded-alloc,dev-writer,head-writer}.log; source/launchers retained in parent directory. All four iptables-nft frontends exist now (host-frontends.log); selected privileged row is running separately, no skip/pass claim yet. Author exact-head fast receipt independently inspected: VERIFY_EXIT=0.

kayg commented

2026-11-07 17:39:27 +00:00

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Owner

J352 verdict: APPROVE for fix-proxy-fd-414 at 454431e5479206a328aa61b97ac41e634db25b90. Both requested fixes are correct. No remaining blocker found in the proxy descriptor/remapping or owner-error changes. Current dev used for independent reds: 6b1bdb81b3d8eb90716643e7d1bd03f61ce37827; merge base 21b3c84ceddd571e1580f679009860e32b37beb9.

P1 from J348: resolved. The production order now establishes the existing stdio allowlist before admitting mapped fds. close_range(CLOEXEC) and its stack-only /proc/self/fd fallback mark rather than close descriptors. Thus Command's private exec-error pipe remains usable on failure and disappears on successful exec. Parent-owned destination slots prevent the mappings from overwriting it. Self maps clear CLOEXEC; mixed mappings stage all sources before overwriting any destination, then close the temporary copies. Sources/cwd/cgroup fds remain CLOEXEC unless explicitly mapped. After exec the surviving set is stdio plus the admitted set.
P2 from J348: resolved. Both parent-owner mismatches return raw ESRCH. I audited the entire production proxy callback chain, including signal reset, fd3 policy, parent binding, allowlist/fallback, cgroup write, cwd, both mapping branches, credential/capability drop, no-new-privileges and final parent recheck. All reachable error paths use raw errno or allocation-free error kinds. The descriptor Vec, groups and other captured storage are allocated before fork; no reachable allocation found after fork. Other production PTY/inheritance callbacks inspected also use precomputed data and syscall errors. macOS proxy preparation is explicitly refused; this review executes Linux.

Independent dev-02 checks, through build-slot with CARGO_INCREMENTAL=0 and jobs3, exact launcher checked with cargo --version:

focused check	unchanged dev	reviewed head
J348 unrelated inheritable fd regression	0 passed / 1 failed: unwanted fd survives	passes in the six mapping tests
both guarded owner-error probes	0 passed / 2 failed, allocation marker and exit99	2 passed / 0 failed
all six mapping regressions, including ENOENT error-pipe preservation and mixed permutation	not rerun as a set on dev	6 passed / 0 failed
controlled CLOEXEC executable-writer/fork probe	ETXTBSY while sibling is before exec; retry succeeds after sibling exec	same result

The baseline lacks reserve_proxy_descriptor and rejects self maps, so its leak fixture reserves target64 with dup2 and maps the distinct original source to it. This avoids conflating the unrelated old self-map refusal with J348's leak; the production callback order and planted inheritable fd>=200 are identical. The reviewed head runs the repository's six tests unchanged. Expanded allocator guard also passed the full callback chain on self-map/mixed-map successes and ENOTDIR cwd, EBADF cgroup write, invalid source and invalid self-map failures (3 tests total, including the original two owner probes). This supplements the source audit; it is not a claim to inject every possible kernel failure.

Receipts: /home/claude/.cache/codex-scratch/J352/evidence/{dev-fd-red,dev-alloc-red,head-fd-green,head-alloc-green,head-expanded-alloc,dev-writer,head-writer}.log on dev-02, copied to /home/kayg/.cache/codex-scratch/J352/evidence/ on control. Probe sources and launchers are in the parent directory and attached bundle.

Pre-existing P2: executable-fixture ETXTBSY. The failing fixture is supervisor_tests.rs:113 (std::fs::write), called for other-program at934-935 and exec'd by the shell planted at970-979. The entire supervisor test file has an empty diff against current dev (foreign-holder-fixture-diff.patch). My controlled probe confirms the Linux writer has FD_CLOEXEC=1, forks a sibling through the actual product callback chain, pauses it after those callbacks, closes the parent's writer, and gets ETXTBSY executing the copied ELF. Releasing that sibling to exec closes its writer and the same ELF executes successfully. This happens on both dev and this head. CLOEXEC does not close a write description at fork; marking CLOEXEC in the new allowlist likewise cannot release it before exec.

The mechanism therefore predates this branch. The author's separate perf-VM syscall/exec harness measured +8261ns at34 fds for the added allowlist, with overlapping ranges (j341/evidence/review-fd-cost/summary.json); this does not establish a change in flake probability. No missing-CLOEXEC product writer or new writer lifetime was found. There is no evidence the branch worsens the flake rate; these deterministic probes do not compare uncontrolled failure probabilities, and the extra pre-exec syscall can change scheduling. The author's honest current-head count remains33 passing full binaries and1 failing binary across34 runs. For a fixture repair, synchronize executable publication with other forks or execute these executable-writing cases in isolated processes; adding CLOEXEC alone cannot repair this race. Original failure retained as author-etxtbsy.log; controlled receipts dev-writer.log and head-writer.log.

Dev-02 privileged row: RAN, not SKIP; 99 PASS / 2 FAIL, exit1. All four installed absolute iptables-nft/ip6tables-nft frontend paths passed preflight. The two failures are ssh_original_port::{nf_tables,nft}_ssh_checks_the_original_service_after_translation: /usr/sbin/nft -j list counter inet ssh_port_test delivered reports ENOENT at ssh_original_port.rs:21. All other99 cases passed. The row explicitly excludes real-root proxy credential/cgroup proof and PAM/systemd login paths; those are not covered by this user-namespace run. The standalone holder test also passed (1/1). Receipts: evidence/{host-frontends,privileged-row,privileged-launch,head-holder}.log. The gate-environment fixture suite passes (privileged-fixtures.log). I then checked out unchanged dev6b1bdb81b and ran only those two tests through the same privileged sandbox: both fail with the identical missing-counter error (each exit101). Thus these are proven baseline failures on dev-02, not regressions from this branch; their root cause was not diagnosed in this review. Receipt: evidence/baseline-privileged.log, build record dev-mesh-build.jsonl. Dev-02 is still not a green full merge gate.

For one auxiliary-spawn follow-up, this is my risk order. These gaps were already listed by J341 and are outside this proxy repair; severity assumes a stray inheritable capability exists, not a newly demonstrated exploit:

order	priority	path	reason
1	P1	`startup_guard::execute`, agent/startup_guard.rs:55; helper.rs:49-55	root-launched private helper drops to the shell user's uid after exec without a full fd allowlist, so retained root-opened capabilities cross a uid boundary
2	P1	signal-only `prepare_child` callers in SSH/remote helpers, ssh/process.rs:78, credentials.rs:267, master.rs:55, duplex.rs:43, remote/uninstall.rs:307/562	executes external helpers and descendants with no fd allowlist; neither privileged fd3 nor other inheritable channels are fenced by this hook; do not rely on each external tool cleaning up for us
3	P2	embedded POSIX spawn, server/embedded.rs:3424-3478	only named fd actions; unrelated server capabilities can persist in a long-lived same-uid infraternal agent; intentional leg-B fd3 must remain admitted
4	P2	`sessions::isolated`, agent/sessions.rs:863, manager callers163/1740	excludes fd3 only for external manager commands; main session launch separately installs a full allowlist at1124, so the PTY launch is already covered
5	P2	restart `Image::probe`, infraternal/restart_image.rs:152	fd3-only exclusion; same-uid two-second image probe; signature/byte verification happens before probe at restart_binary.rs:167-168, reducing exposure; retain Linux /proc/self/fd executable resolution
6	P3	shim loginctl discovery/termination, shim/login.rs:635/663	fixed account-worker teardown helpers, no new uid boundary and smaller ambient descriptor set after allowlisted worker launch, but received inheritable fds still need fencing

lifecycle.rs:201 is a cfg(test) caller, not a production leak path. prepare_child itself promises signal reset only; fix caller descriptor policies with explicit admissions, rather than silently making that signal API close intentional channels. Suggested acceptance criteria for the follow-up: planted high inheritable fd excluded at every entry, intentional fd3/login channels preserved, and exec ENOENT still reported. No library/engine change needed.

I read J341's exact-head fast receipt and real-root proof rather than rerunning quick/fast, as required for reviewers by BRIEF-COMMON. Full gate source /home/kayg/.cache/codex-scratch/j341/evidence/review-fast-sweep-failure.log identifies this exact head and ends VERIFY_EXIT=0 before the separately recorded sweep failure. Root proof identifies the same head and uid0, passes6 mapping tests,2 allocator probes and the credential-drop parent-death test, ending J341_ROOT_PROOF_EXIT=0 and ROOT_SLOT_EXIT=0. Verbatim author's gate table:

+---------------------------+--------------+
| Rust gate                 | Result       |
+---------------------------+--------------+
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| migration names           | PASS         |
| migration tooling tests   | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| Traefik component manifest | PASS         |
| release component publication | PASS         |
| test                      | PASS         |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| privileged integration    | PASS         |
| probe release exclusion   | PASS         |
| nightly fuzz reporter     | PASS         |
| static builds             | PASS         |
+---------------------------+--------------+
VERIFY_EXIT=0

No repository code changed; reviewer quick/fast reruns are not applicable. All J352 executions have ended; test overlays were removed, the VM checkout is clean at the reviewed SHA, and its one target plus own temporary state were deleted (evidence/cleanup.log). The remote implementation branch was rechecked at the same SHA. Evidence and source audit: /home/kayg/.cache/codex-scratch/J352/ on control, corresponding evidence on dev-02; attached bundle contains logs, probes and launchers. No push, merge, deploy, host package install or decision change performed.

APPROVE — head 454431e5479206a328aa61b97ac41e634db25b90.

download J352 review evidence

J352 verdict: **APPROVE** for `fix-proxy-fd-414` at `454431e5479206a328aa61b97ac41e634db25b90`. Both requested fixes are correct. No remaining blocker found in the proxy descriptor/remapping or owner-error changes. Current dev used for independent reds: `6b1bdb81b3d8eb90716643e7d1bd03f61ce37827`; merge base `21b3c84ceddd571e1580f679009860e32b37beb9`. - **P1 from J348: resolved.** The production order now establishes the existing stdio allowlist before admitting mapped fds. `close_range(CLOEXEC)` and its stack-only `/proc/self/fd` fallback mark rather than close descriptors. Thus Command's private exec-error pipe remains usable on failure and disappears on successful exec. Parent-owned destination slots prevent the mappings from overwriting it. Self maps clear CLOEXEC; mixed mappings stage all sources before overwriting any destination, then close the temporary copies. Sources/cwd/cgroup fds remain CLOEXEC unless explicitly mapped. After exec the surviving set is stdio plus the admitted set. - **P2 from J348: resolved.** Both parent-owner mismatches return raw ESRCH. I audited the entire production proxy callback chain, including signal reset, fd3 policy, parent binding, allowlist/fallback, cgroup write, cwd, both mapping branches, credential/capability drop, no-new-privileges and final parent recheck. All reachable error paths use raw errno or allocation-free error kinds. The descriptor Vec, groups and other captured storage are allocated before fork; no reachable allocation found after fork. Other production PTY/inheritance callbacks inspected also use precomputed data and syscall errors. macOS proxy preparation is explicitly refused; this review executes Linux. Independent dev-02 checks, through build-slot with CARGO_INCREMENTAL=0 and jobs3, exact launcher checked with cargo --version: | focused check | unchanged dev | reviewed head | | --- | --- | --- | | J348 unrelated inheritable fd regression | 0 passed / 1 failed: unwanted fd survives | passes in the six mapping tests | | both guarded owner-error probes | 0 passed / 2 failed, allocation marker and exit99 | 2 passed / 0 failed | | all six mapping regressions, including ENOENT error-pipe preservation and mixed permutation | not rerun as a set on dev | 6 passed / 0 failed | | controlled CLOEXEC executable-writer/fork probe | ETXTBSY while sibling is before exec; retry succeeds after sibling exec | same result | The baseline lacks reserve_proxy_descriptor and rejects self maps, so its leak fixture reserves target64 with dup2 and maps the distinct original source to it. This avoids conflating the unrelated old self-map refusal with J348's leak; the production callback order and planted inheritable fd>=200 are identical. The reviewed head runs the repository's six tests unchanged. Expanded allocator guard also passed the full callback chain on self-map/mixed-map successes and ENOTDIR cwd, EBADF cgroup write, invalid source and invalid self-map failures (3 tests total, including the original two owner probes). This supplements the source audit; it is not a claim to inject every possible kernel failure. Receipts: `/home/claude/.cache/codex-scratch/J352/evidence/{dev-fd-red,dev-alloc-red,head-fd-green,head-alloc-green,head-expanded-alloc,dev-writer,head-writer}.log` on dev-02, copied to `/home/kayg/.cache/codex-scratch/J352/evidence/` on control. Probe sources and launchers are in the parent directory and attached bundle. **Pre-existing P2: executable-fixture ETXTBSY.** The failing fixture is `supervisor_tests.rs:113` (`std::fs::write`), called for `other-program` at934-935 and exec'd by the shell planted at970-979. The entire supervisor test file has an empty diff against current dev (`foreign-holder-fixture-diff.patch`). My controlled probe confirms the Linux writer has FD_CLOEXEC=1, forks a sibling through the actual product callback chain, pauses it after those callbacks, closes the parent's writer, and gets ETXTBSY executing the copied ELF. Releasing that sibling to exec closes its writer and the same ELF executes successfully. This happens on both dev and this head. CLOEXEC does not close a write description at fork; marking CLOEXEC in the new allowlist likewise cannot release it before exec. The mechanism therefore predates this branch. The author's separate perf-VM syscall/exec harness measured +8261ns at34 fds for the added allowlist, with overlapping ranges (`j341/evidence/review-fd-cost/summary.json`); this does not establish a change in flake probability. No missing-CLOEXEC product writer or new writer lifetime was found. There is no evidence the branch worsens the flake rate; these deterministic probes do not compare uncontrolled failure probabilities, and the extra pre-exec syscall can change scheduling. The author's honest current-head count remains33 passing full binaries and1 failing binary across34 runs. For a fixture repair, synchronize executable publication with other forks or execute these executable-writing cases in isolated processes; adding CLOEXEC alone cannot repair this race. Original failure retained as `author-etxtbsy.log`; controlled receipts `dev-writer.log` and `head-writer.log`. **Dev-02 privileged row: RAN, not SKIP; 99 PASS / 2 FAIL, exit1.** All four installed absolute iptables-nft/ip6tables-nft frontend paths passed preflight. The two failures are `ssh_original_port::{nf_tables,nft}_ssh_checks_the_original_service_after_translation`: `/usr/sbin/nft -j list counter inet ssh_port_test delivered` reports ENOENT at ssh_original_port.rs:21. All other99 cases passed. The row explicitly excludes real-root proxy credential/cgroup proof and PAM/systemd login paths; those are not covered by this user-namespace run. The standalone holder test also passed (1/1). Receipts: `evidence/{host-frontends,privileged-row,privileged-launch,head-holder}.log`. The gate-environment fixture suite passes (`privileged-fixtures.log`). I then checked out unchanged dev6b1bdb81b and ran only those two tests through the same privileged sandbox: both fail with the identical missing-counter error (each exit101). Thus these are proven baseline failures on dev-02, not regressions from this branch; their root cause was not diagnosed in this review. Receipt: `evidence/baseline-privileged.log`, build record `dev-mesh-build.jsonl`. Dev-02 is still not a green full merge gate. For one auxiliary-spawn follow-up, this is my risk order. These gaps were already listed by J341 and are outside this proxy repair; severity assumes a stray inheritable capability exists, not a newly demonstrated exploit: | order | priority | path | reason | | --- | --- | --- | --- | | 1 | P1 | `startup_guard::execute`, agent/startup_guard.rs:55; helper.rs:49-55 | root-launched private helper drops to the shell user's uid after exec without a full fd allowlist, so retained root-opened capabilities cross a uid boundary | | 2 | P1 | signal-only `prepare_child` callers in SSH/remote helpers, ssh/process.rs:78, credentials.rs:267, master.rs:55, duplex.rs:43, remote/uninstall.rs:307/562 | executes external helpers and descendants with no fd allowlist; neither privileged fd3 nor other inheritable channels are fenced by this hook; do not rely on each external tool cleaning up for us | | 3 | P2 | embedded POSIX spawn, server/embedded.rs:3424-3478 | only named fd actions; unrelated server capabilities can persist in a long-lived same-uid infraternal agent; intentional leg-B fd3 must remain admitted | | 4 | P2 | `sessions::isolated`, agent/sessions.rs:863, manager callers163/1740 | excludes fd3 only for external manager commands; main session launch separately installs a full allowlist at1124, so the PTY launch is already covered | | 5 | P2 | restart `Image::probe`, infraternal/restart_image.rs:152 | fd3-only exclusion; same-uid two-second image probe; signature/byte verification happens before probe at restart_binary.rs:167-168, reducing exposure; retain Linux /proc/self/fd executable resolution | | 6 | P3 | shim loginctl discovery/termination, shim/login.rs:635/663 | fixed account-worker teardown helpers, no new uid boundary and smaller ambient descriptor set after allowlisted worker launch, but received inheritable fds still need fencing | `lifecycle.rs:201` is a cfg(test) caller, not a production leak path. `prepare_child` itself promises signal reset only; fix caller descriptor policies with explicit admissions, rather than silently making that signal API close intentional channels. Suggested acceptance criteria for the follow-up: planted high inheritable fd excluded at every entry, intentional fd3/login channels preserved, and exec ENOENT still reported. No library/engine change needed. I read J341's exact-head fast receipt and real-root proof rather than rerunning quick/fast, as required for reviewers by BRIEF-COMMON. Full gate source `/home/kayg/.cache/codex-scratch/j341/evidence/review-fast-sweep-failure.log` identifies this exact head and ends VERIFY_EXIT=0 before the separately recorded sweep failure. Root proof identifies the same head and uid0, passes6 mapping tests,2 allocator probes and the credential-drop parent-death test, ending J341_ROOT_PROOF_EXIT=0 and ROOT_SLOT_EXIT=0. Verbatim author's gate table: ```text +---------------------------+--------------+ | Rust gate | Result | +---------------------------+--------------+ | Nix Cargo vendoring | PASS | | fmt | PASS | | migration names | PASS | | migration tooling tests | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | Traefik component manifest | PASS | | release component publication | PASS | | test | PASS | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | doc coverage ratchet | PASS | | shape lints off (D351) | PASS | | doc comments on diff | PASS | | fixed test waits | PASS | | privileged integration | PASS | | probe release exclusion | PASS | | nightly fuzz reporter | PASS | | static builds | PASS | +---------------------------+--------------+ VERIFY_EXIT=0 ``` No repository code changed; reviewer quick/fast reruns are not applicable. All J352 executions have ended; test overlays were removed, the VM checkout is clean at the reviewed SHA, and its one target plus own temporary state were deleted (`evidence/cleanup.log`). The remote implementation branch was rechecked at the same SHA. Evidence and source audit: `/home/kayg/.cache/codex-scratch/J352/` on control, corresponding evidence on dev-02; attached bundle contains logs, probes and launchers. No push, merge, deploy, host package install or decision change performed. **APPROVE — head `454431e5479206a328aa61b97ac41e634db25b90`.** [download J352 review evidence](https://git.kayg.org/attachments/8e18f96a-043b-4ca5-afa1-ba30d3bded22)

j352-review-evidence.tar.gz

48 KiB

kayg referenced this issue

2026-11-07 17:41:51 +00:00

spawn paths: same descriptor-allowlist and no-alloc-after-fork treatment as #414 for the remaining spawns #424

kayg commented

2026-11-08 14:17:25 +00:00

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Owner

J341 follow-up start: branch fix-privileged-skip from current origin/dev f31cf18ab9. Investigating why the nf_tables preflight falsely SKIPs despite installed frontends; will trace the host/Nix/sandbox views, add a regression and make one focused commit, then run quick and compute01 verify fast with actual mesh privileged cases. Estimate: 30–45min investigation/fix plus 1–2h gate/build-slot wait. No host package changes, merge or deploy.

J341 follow-up start: branch fix-privileged-skip from current origin/dev f31cf18ab95f38c2b51f783f569ae596887ab955. Investigating why the nf_tables preflight falsely SKIPs despite installed frontends; will trace the host/Nix/sandbox views, add a regression and make one focused commit, then run quick and compute01 verify fast with actual mesh privileged cases. Estimate: 30–45min investigation/fix plus 1–2h gate/build-slot wait. No host package changes, merge or deploy.

kayg commented

2026-11-08 14:20:20 +00:00

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J341 root cause confirmed on base f31cf18ab9: os.access(X_OK) is True for all four frontends in host Python and the exact Nix Python3.14.8 (uid/euid1500). No missing mount view. In orch-gates/fast-dev-abad8c6.log lines12640–12641, the false missing-frontends message is emitted by test_missing_host_frontend_skips_the_row_without_claiming_coverage with os.access mocked False; fast-391c.log has the same. The real invocation later prints no-change SKIP (12677; fast-391c12528), and the final table reflects that no-change selection. The preflight did not actually reject installed tools. Evidence: /home/kayg/.cache/codex-scratch/j341-skip/evidence/{compute-host-nix-access.log,orchestrator-preflight-context.log}. Fix plan: buffer successful unittest fixture output with a deterministic red regression against false verdict leakage; expose actual comparison-base/changed-path count and positive frontend result in the runner. Keep genuine missing-tool SKIP and no-change semantics. A merge qualification must compare to pre-merge dev via VERIFY_QUICK_BASE, not already-updated origin/dev. The runner change selects all privileged areas for the requested compute01 fast proof.

J341 root cause confirmed on base f31cf18ab95f38c2b51f783f569ae596887ab955: os.access(X_OK) is True for all four frontends in host Python and the exact Nix Python3.14.8 (uid/euid1500). No missing mount view. In orch-gates/fast-dev-abad8c6.log lines12640–12641, the false missing-frontends message is emitted by test_missing_host_frontend_skips_the_row_without_claiming_coverage with os.access mocked False; fast-391c.log has the same. The real invocation later prints no-change SKIP (12677; fast-391c12528), and the final table reflects that no-change selection. The preflight did not actually reject installed tools. Evidence: /home/kayg/.cache/codex-scratch/j341-skip/evidence/{compute-host-nix-access.log,orchestrator-preflight-context.log}. Fix plan: buffer successful unittest fixture output with a deterministic red regression against false verdict leakage; expose actual comparison-base/changed-path count and positive frontend result in the runner. Keep genuine missing-tool SKIP and no-change semantics. A merge qualification must compare to pre-merge dev via VERIFY_QUICK_BASE, not already-updated origin/dev. The runner change selects all privileged areas for the requested compute01 fast proof.

kayg commented

2026-11-08 14:27:08 +00:00

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J341 update: one commit pushed, dec870fd86, rebased onto latest origin/dev 7c8bd2221a (new merge only changed TASTE). Deterministic red: new subprocess regression failed on the old unittest entrypoint because its passing mocked-missing-tools fixture emitted a real SKIP line (fixture-red.log). Green: regression plus missing/present frontend tests passed3/3 (fixture-green.log). Successful unittest output is now buffered; real failures retain captured diagnostics. Runner now prints its actual comparison base/changed-path count and positive frontend check. No access bypass or sandbox changes. Actual dev-02 sandbox proof passed all four --version calls, IPv4/IPv6 create/delete chains, and both restore frontends (dev02-real-frontends.log, SANDBOX_FRONTEND_EXIT=0). Compute01 quick is queued before full fast with the same target and explicit base7c8bd2221 so stale VM tracking refs cannot alter area selection. Evidence root: /home/kayg/.cache/codex-scratch/j341-skip/evidence/. Target: /home/claude/worktrees/j341-skip/target on compute01 only.

J341 update: one commit pushed, dec870fd86076d1c18c3dd72b5fce45627e2bf0e, rebased onto latest origin/dev 7c8bd2221a2cfabd1cbf2f839edc3a1aeb3bfb7a (new merge only changed TASTE). Deterministic red: new subprocess regression failed on the old unittest entrypoint because its passing mocked-missing-tools fixture emitted a real SKIP line (fixture-red.log). Green: regression plus missing/present frontend tests passed3/3 (fixture-green.log). Successful unittest output is now buffered; real failures retain captured diagnostics. Runner now prints its actual comparison base/changed-path count and positive frontend check. No access bypass or sandbox changes. Actual dev-02 sandbox proof passed all four --version calls, IPv4/IPv6 create/delete chains, and both restore frontends (dev02-real-frontends.log, SANDBOX_FRONTEND_EXIT=0). Compute01 quick is queued before full fast with the same target and explicit base7c8bd2221 so stale VM tracking refs cannot alter area selection. Evidence root: /home/kayg/.cache/codex-scratch/j341-skip/evidence/. Target: /home/claude/worktrees/j341-skip/target on compute01 only.

kayg commented

2026-11-08 14:51:26 +00:00

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J341 gate finding: full fast at dec870fd86 hit an unrelated workspace-test failure in infraternal --test session_exit_events: idle_daemon_discovers_unattached_and_adopted_shim_exit_without_requests, AssertionError: empty infraternal agent scheduled 1 times in 2.201 s. No Rust files changed in this commit. The gate continues through remaining rows; actual privileged integration proof is still pending. I will preserve this full receipt and check the test against unmodified pinned dev7c8bd2221 after the foreground gate ends. Remote artifact /home/claude/.cache/codex-scratch/j341-skip/evidence/fast.log; quick, clippy and CLI compile-out have passed.

J341 gate finding: full fast at dec870fd86 hit an unrelated workspace-test failure in infraternal --test session_exit_events: idle_daemon_discovers_unattached_and_adopted_shim_exit_without_requests, `AssertionError: empty infraternal agent scheduled 1 times in 2.201 s`. No Rust files changed in this commit. The gate continues through remaining rows; actual privileged integration proof is still pending. I will preserve this full receipt and check the test against unmodified pinned dev7c8bd2221 after the foreground gate ends. Remote artifact /home/claude/.cache/codex-scratch/j341-skip/evidence/fast.log; quick, clippy and CLI compile-out have passed.

kayg commented

2026-11-08 15:01:46 +00:00

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J341 coverage proof on dec870fd86: compute01 verify fast privileged integration PASSED100/100, including95 infraternal-plugin-mesh cases and5 SSH mesh cases. Actual preflight printed all four frontends executable, comparison base7c8bd2221 with2 changed paths, containment checks passed, and all64 Python harness tests passed without leaked simulated SKIP output. Named cases include iptables::tests::real_nf_tables_ownership_partial_family_and_scaled_apply and node::rotation_tests::nf_tables_restart_fences_retained_replacement_address. Full100-case list and exact preflight attached as privileged-proof.json. Full fast continues; its earlier session_exit_events scheduling failure remains recorded separately (86637), and no overall green gate is claimed yet. Log: /home/claude/.cache/codex-scratch/j341-skip/evidence/fast.log.

J341 coverage proof on dec870fd86076d1c18c3dd72b5fce45627e2bf0e: compute01 verify fast privileged integration PASSED100/100, including95 infraternal-plugin-mesh cases and5 SSH mesh cases. Actual preflight printed all four frontends executable, comparison base7c8bd2221 with2 changed paths, containment checks passed, and all64 Python harness tests passed without leaked simulated SKIP output. Named cases include iptables::tests::real_nf_tables_ownership_partial_family_and_scaled_apply and node::rotation_tests::nf_tables_restart_fences_retained_replacement_address. Full100-case list and exact preflight attached as privileged-proof.json. Full fast continues; its earlier session_exit_events scheduling failure remains recorded separately (86637), and no overall green gate is claimed yet. Log: /home/claude/.cache/codex-scratch/j341-skip/evidence/fast.log.

j341-skip-privileged-proof.json

11 KiB

kayg commented

2026-11-08 15:27:04 +00:00

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J341 full first fast finished:23 Rust rows PASS, including privileged integration100/100 (95mesh+5SSHmesh) and static builds; only test row FAIL101 from session_exit_events idle window. Full receipt /home/kayg/.cache/codex-scratch/j341-skip/evidence/{compute-fast.log,fast-table.txt}; static totals x86_64 28,171,984B and aarch64 25,305,312B, PT_INTERP absent. Then checked unmodified pinned dev7c8bd2221 using the same workspace test target/config:3/3 idle-oracle runs passed. Thus the earlier failure is not reproduced on the baseline and is not claimed a proven baseline failure. Receipts idle-base.log and idle-base-1..3.log. Checkout restored exactlydec870fd86. Retrying full fast once unchanged on the warm target, keeping first failure visible; no unrelated test patched.

kayg commented

2026-11-08 15:54:01 +00:00

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J341 follow-up: fix-privileged-skip, one commit dec870fd86076d1c18c3dd72b5fce45627e2bf0e, based on current dev 7c8bd2221a2cfabd1cbf2f839edc3a1aeb3bfb7a.

The reported missing-frontend verdict was test-fixture output, not an actual failed host access check. All four os.access(tool, X_OK) checks return True in both host Python and the exact Nix Python on compute01. The real privileged sandbox also sees and executes the tools on compute01 and dev-02: all four version calls, IPv4/IPv6 chain create/delete, and both restore frontends passed. There is no missing bind mount or different-root problem. Receipts: compute-host-nix-access.log, compute-real-frontends.log, dev02-real-frontends.log.

In orch-gates/fast-dev-abad8c6.log, lines 12640–12641 come from the passing mocked-missing-tools test. The actual runner later skips for no selected changes at line 12677. fast-391c.log has the same pattern at lines 12491–12492 and 12528. Receipt: orchestrator-preflight-context.log.

The commit buffers stdout/stderr of successful unittest fixtures, preserving their diagnostics on failure. A subprocess regression runs the actual test entrypoint and fails on the old code because it prints a simulated missing-frontend SKIP. It passes after the fix, together with the existing missing/present preflight tests (3/3). The real runner now prints its comparison ref, resolved merge base, changed-path count, and successful frontend preflight. Missing-tool SKIP, no-change SKIP, executability checks and sandbox containment are unchanged.

Merge qualification must set VERIFY_QUICK_BASE to the pre-merge dev SHA. Comparing an already-updated origin/dev against itself selects zero changes regardless of installed tools. This proof uses VERIFY_QUICK_BASE=7c8bd2221a2cfabd1cbf2f839edc3a1aeb3bfb7a; the changed runner selects install, mesh, proxy and shim. Do not interpret a no-change SKIP as missing host tools.

Quick on compute01 passed on the exact head, with the same target and base used for fast: J341_SKIP_QUICK_EXIT=0, QUICK_LAUNCH_EXIT=0. Red/green receipts: fixture-red.log (1 failure), fixture-green.log (3 passed), compute-quick.log.

Gate history: the first full fast completed with privileged integration PASS (100/100) and 23 Rust rows PASS; the workspace test row failed on session_exit_events because it observed one scheduling event in its idle window. That receipt is preserved as compute-fast.log / fast-table.txt. The idle oracle then passed 3/3 runs on unmodified base 7c8bd2221 (idle-base.log, idle-base-1..3.log), so its earlier failure is not claimed a proven baseline failure. No unrelated test was changed. The same-head full fast retry passed that oracle.

The full fast retry completed with all 24 Rust rows PASS and privileged integration PASS: 100/100 cases, including 95 mesh and 5 SSH mesh cases. The tracer suite then reported 654 pass / 1 fail: apps/tracer/docs-build.test.ts:185, doc.js stays small, expected <12000, received 13408. Overall FAST_RETRY_LAUNCH_EXIT=1; this is not an overall green gate. The identical docs failure was reproduced on unchanged base 7c8bd2221a2cfabd1cbf2f839edc3a1aeb3bfb7a (0 pass / 1 fail, received 13408, DOC_BASELINE_TEST_EXIT=1), then checkout was restored to the reviewed head. Receipts: compute-fast-retry.log, fast-retry-table.txt, doc-base.log.

Verbatim retry Rust gate output:

| Rust gate                 | Result       |
+---------------------------+--------------+
| Nix Cargo vendoring       | PASS         |
| fmt                       | PASS         |
| migration names           | PASS         |
| migration tooling tests   | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| Traefik component manifest | PASS         |
| release component publication | PASS         |
| test                      | PASS         |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| doc coverage ratchet      | PASS         |
| shape lints off (D351)    | PASS         |
| doc comments on diff      | PASS         |
| fixed test waits          | PASS         |
| privileged integration    | PASS         |
| probe release exclusion   | PASS         |
| nightly fuzz reporter     | PASS         |
| static builds             | PASS         |

Verbatim final tracer result:

654 pass
 1 fail
 24805 expect() calls
Ran 655 tests across 102 files. [25.88s]
FAST_RETRY_LAUNCH_EXIT=1

Both static builds passed. Whole-dev artifacts: x86_64 28,171,984 bytes, sha256 fe88d948c558acca6eba6d4c3954bd1c7d9e6cd63933a81cf4427f20c43305b3; aarch64 25,305,312 bytes, sha256 58eb3d7e439a33efe42e070f0155ea5abc1fef615b39bffffd462fdb25eb7d84. Neither has PT_INTERP. These are whole-dev totals, not measured growth from this script-only commit. Receipt: static-images.json.

The required privileged row ran and passed twice. The unrelated baseline docs budget blocks an overall green fast gate and is left for the orchestrator; no budget was weakened.

Cleanup: own compute01 target removed; dev-02 has no own top-level target. Exactly one commit above the pinned base, control worktree clean, public branch head confirmed. No own gate or test remains queued/running.

All receipts live under /home/kayg/.cache/codex-scratch/j341-skip/evidence/ on the control host. No host packages installed, sandbox layout changes, merge, deployment or issue closure.

J341 follow-up: `fix-privileged-skip`, one commit `dec870fd86076d1c18c3dd72b5fce45627e2bf0e`, based on current dev `7c8bd2221a2cfabd1cbf2f839edc3a1aeb3bfb7a`. The reported missing-frontend verdict was test-fixture output, not an actual failed host access check. All four `os.access(tool, X_OK)` checks return True in both host Python and the exact Nix Python on compute01. The real privileged sandbox also sees and executes the tools on compute01 and dev-02: all four version calls, IPv4/IPv6 chain create/delete, and both restore frontends passed. There is no missing bind mount or different-root problem. Receipts: `compute-host-nix-access.log`, `compute-real-frontends.log`, `dev02-real-frontends.log`. In `orch-gates/fast-dev-abad8c6.log`, lines 12640–12641 come from the passing mocked-missing-tools test. The actual runner later skips for no selected changes at line 12677. `fast-391c.log` has the same pattern at lines 12491–12492 and 12528. Receipt: `orchestrator-preflight-context.log`. The commit buffers stdout/stderr of successful unittest fixtures, preserving their diagnostics on failure. A subprocess regression runs the actual test entrypoint and fails on the old code because it prints a simulated missing-frontend SKIP. It passes after the fix, together with the existing missing/present preflight tests (3/3). The real runner now prints its comparison ref, resolved merge base, changed-path count, and successful frontend preflight. Missing-tool SKIP, no-change SKIP, executability checks and sandbox containment are unchanged. Merge qualification must set `VERIFY_QUICK_BASE` to the pre-merge dev SHA. Comparing an already-updated `origin/dev` against itself selects zero changes regardless of installed tools. This proof uses `VERIFY_QUICK_BASE=7c8bd2221a2cfabd1cbf2f839edc3a1aeb3bfb7a`; the changed runner selects install, mesh, proxy and shim. Do not interpret a no-change SKIP as missing host tools. Quick on compute01 passed on the exact head, with the same target and base used for fast: `J341_SKIP_QUICK_EXIT=0`, `QUICK_LAUNCH_EXIT=0`. Red/green receipts: `fixture-red.log` (1 failure), `fixture-green.log` (3 passed), `compute-quick.log`. Gate history: the first full fast completed with privileged integration PASS (100/100) and 23 Rust rows PASS; the workspace test row failed on `session_exit_events` because it observed one scheduling event in its idle window. That receipt is preserved as `compute-fast.log` / `fast-table.txt`. The idle oracle then passed 3/3 runs on unmodified base `7c8bd2221` (`idle-base.log`, `idle-base-1..3.log`), so its earlier failure is not claimed a proven baseline failure. No unrelated test was changed. The same-head full fast retry passed that oracle. The full fast retry completed with all 24 Rust rows PASS and privileged integration PASS: 100/100 cases, including 95 mesh and 5 SSH mesh cases. The tracer suite then reported 654 pass / 1 fail: `apps/tracer/docs-build.test.ts:185`, `doc.js stays small`, expected <12000, received 13408. Overall `FAST_RETRY_LAUNCH_EXIT=1`; this is not an overall green gate. The identical docs failure was reproduced on unchanged base `7c8bd2221a2cfabd1cbf2f839edc3a1aeb3bfb7a` (0 pass / 1 fail, received 13408, `DOC_BASELINE_TEST_EXIT=1`), then checkout was restored to the reviewed head. Receipts: `compute-fast-retry.log`, `fast-retry-table.txt`, `doc-base.log`. Verbatim retry Rust gate output: ``` | Rust gate | Result | +---------------------------+--------------+ | Nix Cargo vendoring | PASS | | fmt | PASS | | migration names | PASS | | migration tooling tests | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | Traefik component manifest | PASS | | release component publication | PASS | | test | PASS | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | doc coverage ratchet | PASS | | shape lints off (D351) | PASS | | doc comments on diff | PASS | | fixed test waits | PASS | | privileged integration | PASS | | probe release exclusion | PASS | | nightly fuzz reporter | PASS | | static builds | PASS | ``` Verbatim final tracer result: ``` 654 pass 1 fail 24805 expect() calls Ran 655 tests across 102 files. [25.88s] FAST_RETRY_LAUNCH_EXIT=1 ``` Both static builds passed. Whole-dev artifacts: x86_64 28,171,984 bytes, sha256 fe88d948c558acca6eba6d4c3954bd1c7d9e6cd63933a81cf4427f20c43305b3; aarch64 25,305,312 bytes, sha256 58eb3d7e439a33efe42e070f0155ea5abc1fef615b39bffffd462fdb25eb7d84. Neither has PT_INTERP. These are whole-dev totals, not measured growth from this script-only commit. Receipt: `static-images.json`. The required privileged row ran and passed twice. The unrelated baseline docs budget blocks an overall green fast gate and is left for the orchestrator; no budget was weakened. Cleanup: own compute01 target removed; dev-02 has no own top-level target. Exactly one commit above the pinned base, control worktree clean, public branch head confirmed. No own gate or test remains queued/running. All receipts live under `/home/kayg/.cache/codex-scratch/j341-skip/evidence/` on the control host. No host packages installed, sandbox layout changes, merge, deployment or issue closure.

fixture-red.log

1.1 KiB

fixture-green.log

114 B

compute-host-nix-access.log

519 B

compute-real-frontends.log

564 B

dev02-real-frontends.log

664 B

orchestrator-preflight-context.log

3.2 KiB