J115: fix Rust workspace failures under concurrent gate load #315

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opened 2026-11-02 18:06:00 +00:00 by kayg · 35 comments
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J115: make concurrent Rust workspace gates reliable without weakening assertions.

Plan (estimate: 3 hours, stop and report at 6 hours):

  1. Reproduce latest origin/dev workspace tests with --no-fail-fast under controlled CPU load on compute01, then rerun failures individually.
  2. Classify evidence as product deadlines, shared-state collisions, or time-based test waits. Fix in that priority order, preserving assertions.
  3. Run the complete workspace suite five times under identical load, then scripts/verify fast; report before/after table, exact gate output, static sizes and head SHA.

Branch: j115-rust-load-isolation. Base: 1f005f2bc3 (origin/dev).
Local worktree: /home/kayg/Developer/Worktrees/infraternal-j115. VM worktree and only target: /home/claude/worktrees/j115/target. Both queues checked: compute01 has two free slots; dev02 queued. Builds use build-slot. No deploy, no merge.

J115: make concurrent Rust workspace gates reliable without weakening assertions. Plan (estimate: 3 hours, stop and report at 6 hours): 1. Reproduce latest origin/dev workspace tests with --no-fail-fast under controlled CPU load on compute01, then rerun failures individually. 2. Classify evidence as product deadlines, shared-state collisions, or time-based test waits. Fix in that priority order, preserving assertions. 3. Run the complete workspace suite five times under identical load, then scripts/verify fast; report before/after table, exact gate output, static sizes and head SHA. Branch: j115-rust-load-isolation. Base: 1f005f2bc30b2e0c70afd3c4c97496cec4eb3deb (origin/dev). Local worktree: /home/kayg/Developer/Worktrees/infraternal-j115. VM worktree and only target: /home/claude/worktrees/j115/target. Both queues checked: compute01 has two free slots; dev02 queued. Builds use build-slot. No deploy, no merge.
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J115: make concurrent Rust workspace gates reliable without weakening assertions.

Plan (estimate: 3 hours, stop and report at 6 hours):

  1. Reproduce latest origin/dev workspace tests with --no-fail-fast under controlled CPU load on compute01, then rerun failures individually.
  2. Classify evidence as product deadlines, shared-state collisions, or time-based test waits. Fix in that priority order, preserving assertions.
  3. Run the complete workspace suite five times under identical load, then scripts/verify fast; report before/after table, exact gate output, static sizes and head SHA.

Branch: j115-rust-load-isolation. Base: 1f005f2bc3 (origin/dev).
Local worktree: /home/kayg/Developer/Worktrees/infraternal-j115. VM worktree and only target: /home/claude/worktrees/j115/target. Both queues checked: compute01 has two free slots; dev02 queued. Builds use build-slot. No deploy, no merge.

J115: make concurrent Rust workspace gates reliable without weakening assertions. Plan (estimate: 3 hours, stop and report at 6 hours): 1. Reproduce latest origin/dev workspace tests with --no-fail-fast under controlled CPU load on compute01, then rerun failures individually. 2. Classify evidence as product deadlines, shared-state collisions, or time-based test waits. Fix in that priority order, preserving assertions. 3. Run the complete workspace suite five times under identical load, then scripts/verify fast; report before/after table, exact gate output, static sizes and head SHA. Branch: j115-rust-load-isolation. Base: 1f005f2bc30b2e0c70afd3c4c97496cec4eb3deb (origin/dev). Local worktree: /home/kayg/Developer/Worktrees/infraternal-j115. VM worktree and only target: /home/claude/worktrees/j115/target. Both queues checked: compute01 has two free slots; dev02 queued. Builds use build-slot. No deploy, no merge.
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J115 progress: baseline is running on compute01 through build-slot, from unchanged base 1f005f2bc3. Controlled contention is stress-ng --cpu 12 --cpu-load 90; cargo test --workspace --locked --no-fail-fast -j4, both nice -n10. Both queues were checked before launch; compute01 had capacity, dev02 was queued.

Fresh native/Rust compilation is still progressing. No test verdict or confirmed classification yet, and no source changes. CPU contention is present (load average approximately 27 on 10 cores), memory has ample headroom. Evidence: /home/claude/worktrees/j115/evidence/before.log and before-load.log; driver /home/claude/worktrees/j115-before-driver.log. The only target is /home/claude/worktrees/j115/target. Next: extract every failure and rerun each alone before changing code. Still within the 3-hour estimate.

J115 progress: baseline is running on compute01 through build-slot, from unchanged base 1f005f2bc30b2e0c70afd3c4c97496cec4eb3deb. Controlled contention is stress-ng --cpu 12 --cpu-load 90; cargo test --workspace --locked --no-fail-fast -j4, both nice -n10. Both queues were checked before launch; compute01 had capacity, dev02 was queued. Fresh native/Rust compilation is still progressing. No test verdict or confirmed classification yet, and no source changes. CPU contention is present (load average approximately 27 on 10 cores), memory has ample headroom. Evidence: /home/claude/worktrees/j115/evidence/before.log and before-load.log; driver /home/claude/worktrees/j115-before-driver.log. The only target is /home/claude/worktrees/j115/target. Next: extract every failure and rerun each alone before changing code. Still within the 3-hour estimate.
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Loaded baseline finding (run still collecting all workspace results):

infraternal-plugin-ssh --test mesh_startup, optimistic_startup_and_negotiation_fallbacks_reach_the_prompt failed at crates/plugins/ssh/tests/mesh_startup.rs:143:14 with:

called `Result::unwrap()` on an `Err` value: Elapsed(())

The captured output shows startup modes 0, 1, 2, 3 and 5 all reached both prompt and echo after rekey before the enclosing 30-second timeout expired. The binary reported FAILED. 5 passed; 1 failed ... finished in 33.98s. Need isolated rerun and teardown diagnosis before final classification; no assertion changed.

The reported real_binary_rootless_revocation_after_restart_stops_every_owned_terminal passed in this baseline (all 11 agent_daemon tests passed). Release private-staging unit/integration tests also passed so far. Only Rust changes since 294042b56 in this base are J110's status repair (70dbd9905). Full evidence remains compute01:/home/claude/worktrees/j115/evidence/before.log.

Loaded baseline finding (run still collecting all workspace results): `infraternal-plugin-ssh --test mesh_startup`, `optimistic_startup_and_negotiation_fallbacks_reach_the_prompt` failed at `crates/plugins/ssh/tests/mesh_startup.rs:143:14` with: ``` called `Result::unwrap()` on an `Err` value: Elapsed(()) ``` The captured output shows startup modes 0, 1, 2, 3 and 5 all reached both prompt and echo after rekey before the enclosing 30-second timeout expired. The binary reported `FAILED. 5 passed; 1 failed ... finished in 33.98s`. Need isolated rerun and teardown diagnosis before final classification; no assertion changed. The reported `real_binary_rootless_revocation_after_restart_stops_every_owned_terminal` passed in this baseline (all 11 agent_daemon tests passed). Release private-staging unit/integration tests also passed so far. Only Rust changes since 294042b56 in this base are J110's status repair (`70dbd9905`). Full evidence remains `compute01:/home/claude/worktrees/j115/evidence/before.log`.
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Baseline completed: WORKSPACE_EXIT=101, exactly one failed target/test. Original workspace executable rerun alone (no synthetic load), same exact scenario: 1 passed; 0 failed ... finished in 11.66s, ISOLATED_EXIT=0.

Test Under load Alone Classification / repair
optimistic_startup_and_negotiation_fallbacks_reach_the_prompt Elapsed(()), shared 30-second wrapper expires after all five modes reached prompt and echo; binary 33.98s PASS, 11.66s (c), composite test timing budget: five independent state-driven scenarios incorrectly share one hang bound. Each mode now retains its own 30-second hang bound; every authentication, host negotiation, prompt, rekey echo and session-count assertion is unchanged.

No (a) product deadline failure or (b) shared-state collision reproduced in the complete latest-dev baseline. The previously reported rootless restart/revocation, restrictive-umask and private-staging tests passed. Not claiming the historical 12 failures fixed or reproduced; their exact log was not retained in J92's worktree.

Changed only crates/plugins/ssh/tests/mesh_startup.rs (12-line diff). No shipping code, dependency, assertion or security condition changed. Next: five consecutive full workspace suites under the identical 12-worker 90% stress-ng load, followed by the full fast gate. Both queues checked again; compute01 has the shorter queue and preserves the required x86 load venue/cache. Proof logs will be /home/claude/worktrees/j115/evidence/proof-{1..5}.log; driver /home/claude/worktrees/j115-proof-driver.log.

Baseline completed: `WORKSPACE_EXIT=101`, exactly one failed target/test. Original workspace executable rerun alone (no synthetic load), same exact scenario: `1 passed; 0 failed ... finished in 11.66s`, `ISOLATED_EXIT=0`. | Test | Under load | Alone | Classification / repair | | --- | --- | --- | --- | | `optimistic_startup_and_negotiation_fallbacks_reach_the_prompt` | `Elapsed(())`, shared 30-second wrapper expires after all five modes reached prompt and echo; binary 33.98s | PASS, 11.66s | (c), composite test timing budget: five independent state-driven scenarios incorrectly share one hang bound. Each mode now retains its own 30-second hang bound; every authentication, host negotiation, prompt, rekey echo and session-count assertion is unchanged. | No (a) product deadline failure or (b) shared-state collision reproduced in the complete latest-dev baseline. The previously reported rootless restart/revocation, restrictive-umask and private-staging tests passed. Not claiming the historical 12 failures fixed or reproduced; their exact log was not retained in J92's worktree. Changed only `crates/plugins/ssh/tests/mesh_startup.rs` (12-line diff). No shipping code, dependency, assertion or security condition changed. Next: five consecutive full workspace suites under the identical 12-worker 90% stress-ng load, followed by the full fast gate. Both queues checked again; compute01 has the shorter queue and preserves the required x86 load venue/cache. Proof logs will be `/home/claude/worktrees/j115/evidence/proof-{1..5}.log`; driver `/home/claude/worktrees/j115-proof-driver.log`.
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Crash-safety checkpoint pushed: j115-rust-load-isolation at d4549e074 (WIP, validation pending). Only the test hang-bound scope changed; source hash on both control host and VM: 59a792e44626ca1cddf4dc0e3a2c9a6fba88e6494188260863494af92a8cb74a.

Proof got compute01 slot 3 after checking both queues, and is starting. The original full loaded baseline spent about 26 minutes in tests after its cold build, so five repeats plus the final gate will likely exceed the original 3-hour estimate, while remaining within the 6-hour scope-leash stop point. No additional scope. Only target remains /home/claude/worktrees/j115/target (about 31 GiB). Will keep reporting outcomes and finish or stop all owned processes before handing back.

Crash-safety checkpoint pushed: `j115-rust-load-isolation` at `d4549e074` (WIP, validation pending). Only the test hang-bound scope changed; source hash on both control host and VM: `59a792e44626ca1cddf4dc0e3a2c9a6fba88e6494188260863494af92a8cb74a`. Proof got compute01 slot 3 after checking both queues, and is starting. The original full loaded baseline spent about 26 minutes in tests after its cold build, so five repeats plus the final gate will likely exceed the original 3-hour estimate, while remaining within the 6-hour scope-leash stop point. No additional scope. Only target remains `/home/claude/worktrees/j115/target` (about 31 GiB). Will keep reporting outcomes and finish or stop all owned processes before handing back.
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Loaded proof run 1 is complete: WORKSPACE_RUN=1 EXIT=0, WORKSPACE_EXIT=0. Aggregating the 179 Rust result groups: 2,063 passed / 0 failed / 198 ignored. Baseline was the same 179 groups: 2,062 passed / 1 failed / 198 ignored. No test was removed or newly ignored.

Run 2 started automatically under the same continuous stress-ng --cpu 12 --cpu-load 90 process and has passed all 11 daemon integration tests so far. Fixed head/source remains WIP d4549e074, unchanged. Logs: /home/claude/worktrees/j115/evidence/proof-1.log, proof-2.log, and proof-load.log. Driver /home/claude/worktrees/j115-proof-driver.log will stop and clean up its stress workers on any failure or after run 5.

compute01 free disk has reached approximately 25 GiB. The cached proof needs no new target. Will check both queues and disk again before the full final gate, and remove only J115's target when finished as required.

Loaded proof run 1 is complete: `WORKSPACE_RUN=1 EXIT=0`, `WORKSPACE_EXIT=0`. Aggregating the 179 Rust result groups: 2,063 passed / 0 failed / 198 ignored. Baseline was the same 179 groups: 2,062 passed / 1 failed / 198 ignored. No test was removed or newly ignored. Run 2 started automatically under the same continuous `stress-ng --cpu 12 --cpu-load 90` process and has passed all 11 daemon integration tests so far. Fixed head/source remains WIP d4549e074, unchanged. Logs: `/home/claude/worktrees/j115/evidence/proof-1.log`, `proof-2.log`, and `proof-load.log`. Driver `/home/claude/worktrees/j115-proof-driver.log` will stop and clean up its stress workers on any failure or after run 5. compute01 free disk has reached approximately 25 GiB. The cached proof needs no new target. Will check both queues and disk again before the full final gate, and remove only J115's target when finished as required.
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Loaded proof runs 1 and 2 both completed with WORKSPACE_EXIT=0. Each ran the same 179 result groups: 2,063 passed, 0 failed, 198 ignored. Run 3 is active under the same continuous stress-ng process. The repaired SSH negotiation test passed in both completed runs, as did the previously reported rootless revocation, restrictive-umask and private-staging cases. No additional source changes; WIP d4549e074 remains the checkpoint.

Evidence: compute01 /home/claude/worktrees/j115/evidence/proof-{1,2,3}.log and proof-load.log; driver /home/claude/worktrees/j115-proof-driver.log. Final full fast gate remains pending the requested five loaded passes.

Loaded proof runs 1 and 2 both completed with `WORKSPACE_EXIT=0`. Each ran the same 179 result groups: 2,063 passed, 0 failed, 198 ignored. Run 3 is active under the same continuous stress-ng process. The repaired SSH negotiation test passed in both completed runs, as did the previously reported rootless revocation, restrictive-umask and private-staging cases. No additional source changes; WIP d4549e074 remains the checkpoint. Evidence: compute01 `/home/claude/worktrees/j115/evidence/proof-{1,2,3}.log` and `proof-load.log`; driver `/home/claude/worktrees/j115-proof-driver.log`. Final full fast gate remains pending the requested five loaded passes.
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The repetition caught another intermittent failure in run 3 after runs 1 and 2 were fully green:

login_binary::tests::anonymous_kernel_image_can_be_published_after_unlink, crates/infraternal-agent/src/login_binary.rs:484:14:

called `Result::unwrap()` on an `Err` value: Os { code: 26, kind: ExecutableFileBusy, message: "Text file busy" }

This is failure to exec the fixture's freshly copied source, before production publication is invoked. Each source already has a PID/counter-private directory. Investigating concurrent fork inheritance of a writable fixture descriptor: close-on-exec does not close the descriptor until a concurrently spawned child reaches exec. No timing retry or assertion weakening will be used. Will rerun the exact executable alone once run 3's --no-fail-fast collection finishes and its load workers stop, then repair the fixture isolation if confirmed. The five-pass proof will restart from zero after the final repair.

Run-3 evidence: /home/claude/worktrees/j115/evidence/proof-3.log. Free disk recovered to about 67 GiB as other jobs cleaned up. WIP checkpoint remains d4549e074; no further source change yet.

The repetition caught another intermittent failure in run 3 after runs 1 and 2 were fully green: `login_binary::tests::anonymous_kernel_image_can_be_published_after_unlink`, `crates/infraternal-agent/src/login_binary.rs:484:14`: ``` called `Result::unwrap()` on an `Err` value: Os { code: 26, kind: ExecutableFileBusy, message: "Text file busy" } ``` This is failure to exec the fixture's freshly copied source, before production publication is invoked. Each source already has a PID/counter-private directory. Investigating concurrent fork inheritance of a writable fixture descriptor: close-on-exec does not close the descriptor until a concurrently spawned child reaches exec. No timing retry or assertion weakening will be used. Will rerun the exact executable alone once run 3's --no-fail-fast collection finishes and its load workers stop, then repair the fixture isolation if confirmed. The five-pass proof will restart from zero after the final repair. Run-3 evidence: `/home/claude/worktrees/j115/evidence/proof-3.log`. Free disk recovered to about 67 GiB as other jobs cleaned up. WIP checkpoint remains d4549e074; no further source change yet.
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Refinement from run 3: the per-mode 30-second SSH hang bound also expires in mode 5 after prompt/rekey echo, so the initial cumulative-budget hypothesis was incomplete. Will instrument individual startup/echo/disconnect/join stages under load before setting the final hang bound or repairing teardown. The current run is still collecting every failure; no new VM source has been applied mid-run.

The ETXTBSY mechanism was reproduced deterministically in a small VM probe using one private executable: parent closes its copy writer, but a fork child retains the inherited descriptor before exec; executing the private image returns ETXTBSY. After that child exits, the same image executes successfully. Unique filenames alone cannot prevent this shared descriptor-table race. Local repair reuses the existing ignored running_image_fixture subprocess to perform fixture copies in a private descriptor table; the parent waits for its successful exit before using the image. No exec retries or assertions removed. Production publication is not reached by the failing fixture launch.

Refinement from run 3: the per-mode 30-second SSH hang bound also expires in mode 5 after prompt/rekey echo, so the initial cumulative-budget hypothesis was incomplete. Will instrument individual startup/echo/disconnect/join stages under load before setting the final hang bound or repairing teardown. The current run is still collecting every failure; no new VM source has been applied mid-run. The ETXTBSY mechanism was reproduced deterministically in a small VM probe using one private executable: parent closes its copy writer, but a fork child retains the inherited descriptor before exec; executing the private image returns ETXTBSY. After that child exits, the same image executes successfully. Unique filenames alone cannot prevent this shared descriptor-table race. Local repair reuses the existing ignored `running_image_fixture` subprocess to perform fixture copies in a private descriptor table; the parent waits for its successful exit before using the image. No exec retries or assertions removed. Production publication is not reached by the failing fixture launch.
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Refined repairs checkpointed and pushed at ef3728b5c on j115-rust-load-isolation (still WIP; full validation pending). Final diff vs base is 27 additions / 3 deletions, confined to existing test code. Every assertion remains, with no new ignored tests or dependency.

Reproduced test Loaded failure Same executable alone Root cause / repair
optimistic_startup_and_negotiation_fallbacks_reach_the_prompt Elapsed(()); diagnostic per-mode bound also expired at mode 5 PASS (10.66s refined executable; initial 11.66s) (c) functional test used real elapsed time to bound in-memory protocol state while debug finite-field cryptography runs synchronously. Diagnostic loaded runs measured mode-5 echo at 17.192 / 19.099 / 21.154s; disconnect and server join followed in <1ms. Replace wall-clock timing with the runtime's existing paused-clock support, retaining the original 30-second protocol hang bound and every assertion. No longer per-mode bound enlargement.
login_binary::tests::anonymous_kernel_image_can_be_published_after_unlink Os { code: 26, kind: ExecutableFileBusy, message: "Text file busy" } before production publication PASS, 11.66s (b) shared descriptor table across parallel fixture forks: a child can retain a writable copy descriptor until exec after the parent closes it. Deterministic private-file probe confirmed this. Reuse the existing subprocess helper for fixture copies; wait for its exit, so no sibling fixture can inherit that writer. No retry/sleep.

The repaired image module passed three loaded focused runs (18 passed, 0 failed, 1 ignored each). SSH diagnostics completed three times without teardown hangs. The final paused-clock SSH variant is now queued for three loaded focused runs followed immediately by FIVE NEW full workspace runs under the exact original load binary/arguments. Earlier runs 1/2 are not counted toward final proof because run 3 caught these defects.

Both queues checked: compute01 has the shorter queue; dev02 remains queued. Final proof driver /home/claude/worktrees/j115-final-proof-driver.log; logs /home/claude/worktrees/j115/evidence/final-proof-{1..5}.log, final-proof-load.log, and final-focused-ssh-{1..3}.log. Only target remains /home/claude/worktrees/j115/target. Final full fast gate still pending.

Refined repairs checkpointed and pushed at `ef3728b5c` on `j115-rust-load-isolation` (still WIP; full validation pending). Final diff vs base is 27 additions / 3 deletions, confined to existing test code. Every assertion remains, with no new ignored tests or dependency. | Reproduced test | Loaded failure | Same executable alone | Root cause / repair | | --- | --- | --- | --- | | `optimistic_startup_and_negotiation_fallbacks_reach_the_prompt` | `Elapsed(())`; diagnostic per-mode bound also expired at mode 5 | PASS (10.66s refined executable; initial 11.66s) | (c) functional test used real elapsed time to bound in-memory protocol state while debug finite-field cryptography runs synchronously. Diagnostic loaded runs measured mode-5 echo at 17.192 / 19.099 / 21.154s; disconnect and server join followed in <1ms. Replace wall-clock timing with the runtime's existing paused-clock support, retaining the original 30-second protocol hang bound and every assertion. No longer per-mode bound enlargement. | | `login_binary::tests::anonymous_kernel_image_can_be_published_after_unlink` | `Os { code: 26, kind: ExecutableFileBusy, message: "Text file busy" }` before production publication | PASS, 11.66s | (b) shared descriptor table across parallel fixture forks: a child can retain a writable copy descriptor until exec after the parent closes it. Deterministic private-file probe confirmed this. Reuse the existing subprocess helper for fixture copies; wait for its exit, so no sibling fixture can inherit that writer. No retry/sleep. | The repaired image module passed three loaded focused runs (18 passed, 0 failed, 1 ignored each). SSH diagnostics completed three times without teardown hangs. The final paused-clock SSH variant is now queued for three loaded focused runs followed immediately by FIVE NEW full workspace runs under the exact original load binary/arguments. Earlier runs 1/2 are not counted toward final proof because run 3 caught these defects. Both queues checked: compute01 has the shorter queue; dev02 remains queued. Final proof driver `/home/claude/worktrees/j115-final-proof-driver.log`; logs `/home/claude/worktrees/j115/evidence/final-proof-{1..5}.log`, `final-proof-load.log`, and `final-focused-ssh-{1..3}.log`. Only target remains `/home/claude/worktrees/j115/target`. Final full fast gate still pending.
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Final-source proof run 1 completed: FINAL_WORKSPACE_RUN=1 EXIT=0, WORKSPACE_EXIT=0. All 179 result groups ran: 2,063 passed / 0 failed / 198 ignored. Final paused-clock SSH and subprocess-isolated image fixture both passed in the full loaded workspace. The three focused paused-clock SSH runs also passed before the sweep.

Final run 2 is active under the same continuous stress-ng load. Remaining: final runs 2–5, full scripts/verify fast, final commit/push, verbatim gate report and target cleanup. Checkpoint remains ef3728b5c, source unchanged. Driver /home/claude/worktrees/j115-final-proof-driver.log; evidence /home/claude/worktrees/j115/evidence/final-proof-*.log and final-proof-load.log. No pending process will be left at handback.

Final-source proof run 1 completed: `FINAL_WORKSPACE_RUN=1 EXIT=0`, `WORKSPACE_EXIT=0`. All 179 result groups ran: 2,063 passed / 0 failed / 198 ignored. Final paused-clock SSH and subprocess-isolated image fixture both passed in the full loaded workspace. The three focused paused-clock SSH runs also passed before the sweep. Final run 2 is active under the same continuous stress-ng load. Remaining: final runs 2–5, full scripts/verify fast, final commit/push, verbatim gate report and target cleanup. Checkpoint remains ef3728b5c, source unchanged. Driver `/home/claude/worktrees/j115-final-proof-driver.log`; evidence `/home/claude/worktrees/j115/evidence/final-proof-*.log` and `final-proof-load.log`. No pending process will be left at handback.
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Final-source run 2 exposed a third failing test (the --no-fail-fast run is still collecting results):

detached_shim_is_discovered_and_replays_from_the_last_observed_offset, crates/infraternal/tests/agent_sessions.rs:125:6:

called `Result::unwrap()` on an `Err` value: Os { code: 26, kind: ExecutableFileBusy, message: "Text file busy" }

The executable here is a freshly written private shell wrapper, with the same writable-descriptor inheritance race as the image fixture. Local repair writes both wrappers in a private subprocess and waits for its exit. All existing shim/replay/discovery assertions remain. This is classification (b); no shipping-code change. Same-executable isolated rerun will follow completion of run 2 and stress cleanup.

Checkpoint pushed: 1617207e1, branch j115-rust-load-isolation. Not applied to the running VM suite. Evidence: compute01 /home/claude/worktrees/j115/evidence/final-proof-2.log. The final five-pass count will restart at zero after this repair. Original scope and estimate unchanged; approximately three hours elapsed, six-hour stop point still applies. Only target: /home/claude/worktrees/j115/target. Next: isolated reproduction, focused loaded shim checks, five fresh workspace passes, fast gate.

Final-source run 2 exposed a third failing test (the --no-fail-fast run is still collecting results): `detached_shim_is_discovered_and_replays_from_the_last_observed_offset`, `crates/infraternal/tests/agent_sessions.rs:125:6`: ``` called `Result::unwrap()` on an `Err` value: Os { code: 26, kind: ExecutableFileBusy, message: "Text file busy" } ``` The executable here is a freshly written private shell wrapper, with the same writable-descriptor inheritance race as the image fixture. Local repair writes both wrappers in a private subprocess and waits for its exit. All existing shim/replay/discovery assertions remain. This is classification (b); no shipping-code change. Same-executable isolated rerun will follow completion of run 2 and stress cleanup. Checkpoint pushed: `1617207e1`, branch `j115-rust-load-isolation`. Not applied to the running VM suite. Evidence: compute01 `/home/claude/worktrees/j115/evidence/final-proof-2.log`. The final five-pass count will restart at zero after this repair. Original scope and estimate unchanged; approximately three hours elapsed, six-hour stop point still applies. Only target: `/home/claude/worktrees/j115/target`. Next: isolated reproduction, focused loaded shim checks, five fresh workspace passes, fast gate.
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Run 2 completed with exactly one failure: shim wrapper ETXTBSY. The unchanged workspace executable passes that exact test alone: 1 passed; 0 failed; 0 ignored; 0 measured; 3 filtered out; finished in 0.06s, ISOLATED_EXIT=0 (evidence/isolated-agent-sessions.log). This confirms the third (b) entry in the before/after table.

The repaired source is synchronized and hash-checked on control/VM (agent_sessions.rs: 34d1f66ce1250823031a4ba58b2aba6bb24a9a380a67ae83b5dabe339c24a6eb). Both queues checked: compute01 had three free slots; dev02 was queued. A new build-slot run is active on compute01: three focused loaded session runs, five new complete workspace suites under the same stress-ng 12-worker 90% CPU load, then full scripts/verify fast after stress cleanup. No earlier full pass counts for this final source.

Driver /home/claude/worktrees/j115-final-v2-driver.log; evidence /home/claude/worktrees/j115/evidence/final-v2-*. Checkpoint 1617207e1; only target /home/claude/worktrees/j115/target. Issue created 18:06 UTC (23:36 IST); six-hour scope stop is 05:36 IST. No product code, assertion, or ignore list changed.

Run 2 completed with exactly one failure: shim wrapper ETXTBSY. The unchanged workspace executable passes that exact test alone: `1 passed; 0 failed; 0 ignored; 0 measured; 3 filtered out; finished in 0.06s`, `ISOLATED_EXIT=0` (`evidence/isolated-agent-sessions.log`). This confirms the third (b) entry in the before/after table. The repaired source is synchronized and hash-checked on control/VM (`agent_sessions.rs`: `34d1f66ce1250823031a4ba58b2aba6bb24a9a380a67ae83b5dabe339c24a6eb`). Both queues checked: compute01 had three free slots; dev02 was queued. A new build-slot run is active on compute01: three focused loaded session runs, five new complete workspace suites under the same stress-ng 12-worker 90% CPU load, then full `scripts/verify fast` after stress cleanup. No earlier full pass counts for this final source. Driver `/home/claude/worktrees/j115-final-v2-driver.log`; evidence `/home/claude/worktrees/j115/evidence/final-v2-*`. Checkpoint `1617207e1`; only target `/home/claude/worktrees/j115/target`. Issue created 18:06 UTC (23:36 IST); six-hour scope stop is 05:36 IST. No product code, assertion, or ignore list changed.
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Final-source workspace run 1 passed: WORKSPACE_EXIT=0, 179 result groups, 2,063 passed / 0 failed / 198 ignored. Run 2 is active under the same uninterrupted stress-ng 12-worker/90% load. Three focused session runs also passed before the sweep. Source remains checkpoint 1617207e1 without further changes.

Raw receipts moved outside the checkout to /home/claude/.cache/codex-scratch/j115/evidence/; prior worktree evidence paths resolve there. Repository artifact preflight passes with exactly three changed source files and merge base 1f005f2bc30b. Only target remains /home/claude/worktrees/j115/target. Driver /home/claude/worktrees/j115-final-v2-driver.log schedules the full fast gate immediately after all five loaded passes and stress cleanup. Disk recovered above the build floor. Remaining: runs 2–5, fast gate, final atomic commit/push and evidence report/target cleanup. No owned run will remain at handback.

Final-source workspace run 1 passed: `WORKSPACE_EXIT=0`, 179 result groups, 2,063 passed / 0 failed / 198 ignored. Run 2 is active under the same uninterrupted stress-ng 12-worker/90% load. Three focused session runs also passed before the sweep. Source remains checkpoint `1617207e1` without further changes. Raw receipts moved outside the checkout to `/home/claude/.cache/codex-scratch/j115/evidence/`; prior worktree evidence paths resolve there. Repository artifact preflight passes with exactly three changed source files and merge base `1f005f2bc30b`. Only target remains `/home/claude/worktrees/j115/target`. Driver `/home/claude/worktrees/j115-final-v2-driver.log` schedules the full fast gate immediately after all five loaded passes and stress cleanup. Disk recovered above the build floor. Remaining: runs 2–5, fast gate, final atomic commit/push and evidence report/target cleanup. No owned run will remain at handback.
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Final-v2 run 2 completed with exactly one failure, then the same executable passed the exact test alone:

runtime_lock::tests::session_inspection_finds_bound_endpoints_by_identity, crates/plugins/remote/src/runtime_lock_tests.rs:300:5:

assertion `left == right` failed
  left: Err(73)
 right: Ok(())

Isolated: 1 passed; 0 failed; 0 ignored; 0 measured; 115 filtered out; finished in 0.00s, ISOLATED_EXIT=0.

Classification (c): immediately after dropping the first listener fixture, the test assumes the kernel socket snapshot has already forgotten it. Its later datagram-close assertion already uses the module's existing sessions_after_close state waiter. Apply that same waiter at the first close, preserving the exact Ok assertion and existing hang bound. One-line repair, no product change or new helper.

Pushed checkpoint 74caef026; final diff is four existing test files, 50 additions / 9 deletions. The proof count restarts from zero. New driver /home/claude/worktrees/j115-final-v3-driver.log: focused remote tests, five complete loaded workspace runs, then the fast gate. Evidence outside checkout: /home/claude/.cache/codex-scratch/j115/evidence/final-v3-*. Only target remains /home/claude/worktrees/j115/target. Still inside the six-hour scope leash (stop 05:36 IST).

Final-v2 run 2 completed with exactly one failure, then the same executable passed the exact test alone: `runtime_lock::tests::session_inspection_finds_bound_endpoints_by_identity`, `crates/plugins/remote/src/runtime_lock_tests.rs:300:5`: ``` assertion `left == right` failed left: Err(73) right: Ok(()) ``` Isolated: `1 passed; 0 failed; 0 ignored; 0 measured; 115 filtered out; finished in 0.00s`, `ISOLATED_EXIT=0`. Classification (c): immediately after dropping the first listener fixture, the test assumes the kernel socket snapshot has already forgotten it. Its later datagram-close assertion already uses the module's existing `sessions_after_close` state waiter. Apply that same waiter at the first close, preserving the exact Ok assertion and existing hang bound. One-line repair, no product change or new helper. Pushed checkpoint `74caef026`; final diff is four existing test files, 50 additions / 9 deletions. The proof count restarts from zero. New driver `/home/claude/worktrees/j115-final-v3-driver.log`: focused remote tests, five complete loaded workspace runs, then the fast gate. Evidence outside checkout: `/home/claude/.cache/codex-scratch/j115/evidence/final-v3-*`. Only target remains `/home/claude/worktrees/j115/target`. Still inside the six-hour scope leash (stop 05:36 IST).
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Final-v3 run 1 passed in full: 179 result groups, 2,063 passed / 0 failed / 198 ignored, WORKSPACE_EXIT=0. Run 2 remains active without recorded failures. Three complete focused remote-runtime runs passed before the sweep. All four modified file SHA-256 hashes match between control and compute01; checkpoint remains 74caef026, source unchanged.

Raw receipts: /home/claude/.cache/codex-scratch/j115/evidence/final-v3-*. Main driver /home/claude/worktrees/j115-final-v3-driver.log will execute scripts/verify fast after the five successful loaded runs. The SSH wait connection dropped once; the detached run and continuous stress-ng load were verified alive and unchanged after reconnect.

Both queues checked again. compute01 has the shorter queue and approximately 97 GiB free; dev02 is queued. Queued the two release binary compilations required by the final gate in a separate build-slot, reusing the SAME sole target /home/claude/worktrees/j115/target, so their compilation can overlap test execution. No extra suite or framework: the final gate will validate those cached artifacts normally. Prebuild log evidence/static-prebuild.log; driver /home/claude/worktrees/j115-static-prebuild.sh. Both owned runs will be completed or stopped before handback. Six-hour stop remains 05:36 IST.

Final-v3 run 1 passed in full: 179 result groups, 2,063 passed / 0 failed / 198 ignored, `WORKSPACE_EXIT=0`. Run 2 remains active without recorded failures. Three complete focused remote-runtime runs passed before the sweep. All four modified file SHA-256 hashes match between control and compute01; checkpoint remains `74caef026`, source unchanged. Raw receipts: `/home/claude/.cache/codex-scratch/j115/evidence/final-v3-*`. Main driver `/home/claude/worktrees/j115-final-v3-driver.log` will execute `scripts/verify fast` after the five successful loaded runs. The SSH wait connection dropped once; the detached run and continuous stress-ng load were verified alive and unchanged after reconnect. Both queues checked again. compute01 has the shorter queue and approximately 97 GiB free; dev02 is queued. Queued the two release binary compilations required by the final gate in a separate build-slot, reusing the SAME sole target `/home/claude/worktrees/j115/target`, so their compilation can overlap test execution. No extra suite or framework: the final gate will validate those cached artifacts normally. Prebuild log `evidence/static-prebuild.log`; driver `/home/claude/worktrees/j115-static-prebuild.sh`. Both owned runs will be completed or stopped before handback. Six-hour stop remains 05:36 IST.
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Final-source proof runs 1 and 2 completed: FINAL_V3_WORKSPACE_RUN=1 EXIT=0, FINAL_V3_WORKSPACE_RUN=2 EXIT=0, WORKSPACE_EXIT=0 in each log. Run 3 is active under the same continuous stress-ng load. Source remains 74caef026 unchanged; all four source hashes match control and VM. Static release prebuild is active in a separate build-slot using the same sole target.

Captured a fresh deterministic descriptor-inheritance probe in evidence/fd-inheritance-probe.log (outside checkout). A parent closes its private executable writer, while a fork child retains that CLOEXEC descriptor behind a pipe barrier:

parent writer closed, fork child retains CLOEXEC writer: OSError(26, 'Text file busy')
same private executable after writer process exit: EXIT=0

The probe waited/reaped its child and removed its private temp directory. This confirms why unique filenames and CLOEXEC alone do not repair either failing executable fixture; the isolated writer subprocess removes that inheritance path.

Remaining: runs 3–5, full fast gate, final atomic commit/push, before/after table with verbatim gate output and raw receipts, target/process cleanup. Logs /home/claude/.cache/codex-scratch/j115/evidence/, main driver /home/claude/worktrees/j115-final-v3-driver.log. Six-hour stop remains 05:36 IST.

Final-source proof runs 1 and 2 completed: `FINAL_V3_WORKSPACE_RUN=1 EXIT=0`, `FINAL_V3_WORKSPACE_RUN=2 EXIT=0`, `WORKSPACE_EXIT=0` in each log. Run 3 is active under the same continuous stress-ng load. Source remains `74caef026` unchanged; all four source hashes match control and VM. Static release prebuild is active in a separate build-slot using the same sole target. Captured a fresh deterministic descriptor-inheritance probe in `evidence/fd-inheritance-probe.log` (outside checkout). A parent closes its private executable writer, while a fork child retains that CLOEXEC descriptor behind a pipe barrier: ``` parent writer closed, fork child retains CLOEXEC writer: OSError(26, 'Text file busy') same private executable after writer process exit: EXIT=0 ``` The probe waited/reaped its child and removed its private temp directory. This confirms why unique filenames and CLOEXEC alone do not repair either failing executable fixture; the isolated writer subprocess removes that inheritance path. Remaining: runs 3–5, full fast gate, final atomic commit/push, before/after table with verbatim gate output and raw receipts, target/process cleanup. Logs `/home/claude/.cache/codex-scratch/j115/evidence/`, main driver `/home/claude/worktrees/j115-final-v3-driver.log`. Six-hour stop remains 05:36 IST.
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Final-v3 run 3 completed with two failures (WORKSPACE_EXIT=101), after final-v3 runs 1 and 2 passed. Thus five consecutive final-source passes are NOT established.

  1. shared_writer_refusals_and_full_peer_limit_preserve_the_live_writer, crates/infraternal/tests/shim.rs:288:34:
called `Result::unwrap()` on an `Err` value: Error { kind: UnexpectedEof, message: "failed to fill whole buffer" }

Exact original executable alone: 1 passed; 0 failed; 0 ignored; 0 measured; 25 filtered out; finished in 0.15s, ISOLATED_SHIM_EXIT=0. The fixture drops its initial readiness peer without socket shutdown; parallel fixture forks can retain an alias until exec, consuming an extra admission slot in the test that fills all 32. Local repair explicitly shuts down the readiness socket before dropping it; no peer-limit or assertion changes. Further diagnosis/loaded validation pending.

  1. auth::tests::socket_tests::close_logging::agent_stream_loss_logs_its_safe_close_reason_and_reaches_the_browser, close_logging.rs:248:6:
called `Result::unwrap()` on an `Err` value: Elapsed(())

The exact executable ALSO failed alone with the same timeout (12.43s total). It is not yet classified as load-only. The fixture ignores liveness probes; investigating protocol state before changing any bound or product code. Temporary typed-frame diagnostics are local/VM test-only edits, uncommitted. Diagnostic driver /home/claude/worktrees/j115-close-diagnose-driver.log; output evidence/close-diagnose.log.

Both static release prebuilds completed: STATIC_PREBUILD_EXIT=0. Full fast gate remains pending. Current checkpoint 74caef026; current local edits beyond it are the shim readiness shutdown and temporary close-log diagnostics. Raw receipts outside checkout /home/claude/.cache/codex-scratch/j115/evidence/; only target /home/claude/worktrees/j115/target.

Reported the estimate overrun risk and requested approval to extend the six-hour stop from 05:36 IST to 07:36 IST. Approval is pending; current work remains within the original window. Without approval, stop/report at the original limit and leave no owned run pending.

Final-v3 run 3 completed with two failures (`WORKSPACE_EXIT=101`), after final-v3 runs 1 and 2 passed. Thus five consecutive final-source passes are NOT established. 1. `shared_writer_refusals_and_full_peer_limit_preserve_the_live_writer`, `crates/infraternal/tests/shim.rs:288:34`: ``` called `Result::unwrap()` on an `Err` value: Error { kind: UnexpectedEof, message: "failed to fill whole buffer" } ``` Exact original executable alone: `1 passed; 0 failed; 0 ignored; 0 measured; 25 filtered out; finished in 0.15s`, `ISOLATED_SHIM_EXIT=0`. The fixture drops its initial readiness peer without socket shutdown; parallel fixture forks can retain an alias until exec, consuming an extra admission slot in the test that fills all 32. Local repair explicitly shuts down the readiness socket before dropping it; no peer-limit or assertion changes. Further diagnosis/loaded validation pending. 2. `auth::tests::socket_tests::close_logging::agent_stream_loss_logs_its_safe_close_reason_and_reaches_the_browser`, `close_logging.rs:248:6`: ``` called `Result::unwrap()` on an `Err` value: Elapsed(()) ``` The exact executable ALSO failed alone with the same timeout (12.43s total). It is not yet classified as load-only. The fixture ignores liveness probes; investigating protocol state before changing any bound or product code. Temporary typed-frame diagnostics are local/VM test-only edits, uncommitted. Diagnostic driver `/home/claude/worktrees/j115-close-diagnose-driver.log`; output `evidence/close-diagnose.log`. Both static release prebuilds completed: `STATIC_PREBUILD_EXIT=0`. Full fast gate remains pending. Current checkpoint `74caef026`; current local edits beyond it are the shim readiness shutdown and temporary close-log diagnostics. Raw receipts outside checkout `/home/claude/.cache/codex-scratch/j115/evidence/`; only target `/home/claude/worktrees/j115/target`. Reported the estimate overrun risk and requested approval to extend the six-hour stop from 05:36 IST to 07:36 IST. Approval is pending; current work remains within the original window. Without approval, stop/report at the original limit and leave no owned run pending.
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Checkpoint pushed 30be0b252: explicit shutdown of the initial shim readiness peer, retaining all 32-peer-limit and writer-state assertions. Socket-alias mechanism reproduced in evidence/socket-inheritance-probe.log:

parent readiness peer dropped; inherited alias still holds admission
explicit shutdown causes EOF while inherited descriptor remains open

Close-logging diagnosis: with normal crate cwd and CARGO_TARGET_DIR, the typed-frame diagnostic variant passed alone in 0.83s, then passed TEN focused runs under the original 12-worker/90% stress load (0.91–4.51s each). All observed Hello, control Call, AttachTerm, and the fake host's Close; no liveness Ping was observed, so the earlier ignored-probe hypothesis is unconfirmed and no Pong repair was made.

Now running the COMPLETE server test binary under load to expose concurrent-test interaction. Temporary diagnostic source (UNCOMMITTED) extends only the test's outer bound from 10 to 60 seconds and emits frame discriminants / safe event type / observed elapsed time directly to stderr. This is a diagnostic distinction between delayed delivery and missing Close, NOT a proposed fix or a final-source pass. The original timer and diagnostics will be restored/removed before final reporting unless measured evidence justifies a repair.

Driver /home/claude/worktrees/j115-close-workspace-diagnose-driver.log; logs evidence/close-full-diagnose*. The same run first checks all real shim integration tests with the readiness shutdown under load. All evidence outside checkout /home/claude/.cache/codex-scratch/j115/evidence/; only target /home/claude/worktrees/j115/target. Full fast gate and five final-source passes remain pending. Extension approval still pending; original stop 05:36 IST remains in force.

Checkpoint pushed `30be0b252`: explicit shutdown of the initial shim readiness peer, retaining all 32-peer-limit and writer-state assertions. Socket-alias mechanism reproduced in `evidence/socket-inheritance-probe.log`: ``` parent readiness peer dropped; inherited alias still holds admission explicit shutdown causes EOF while inherited descriptor remains open ``` Close-logging diagnosis: with normal crate cwd and CARGO_TARGET_DIR, the typed-frame diagnostic variant passed alone in 0.83s, then passed TEN focused runs under the original 12-worker/90% stress load (0.91–4.51s each). All observed Hello, control Call, AttachTerm, and the fake host's Close; no liveness Ping was observed, so the earlier ignored-probe hypothesis is unconfirmed and no Pong repair was made. Now running the COMPLETE server test binary under load to expose concurrent-test interaction. Temporary diagnostic source (UNCOMMITTED) extends only the test's outer bound from 10 to 60 seconds and emits frame discriminants / safe event type / observed elapsed time directly to stderr. This is a diagnostic distinction between delayed delivery and missing Close, NOT a proposed fix or a final-source pass. The original timer and diagnostics will be restored/removed before final reporting unless measured evidence justifies a repair. Driver `/home/claude/worktrees/j115-close-workspace-diagnose-driver.log`; logs `evidence/close-full-diagnose*`. The same run first checks all real shim integration tests with the readiness shutdown under load. All evidence outside checkout `/home/claude/.cache/codex-scratch/j115/evidence/`; only target `/home/claude/worktrees/j115/target`. Full fast gate and five final-source passes remain pending. Extension approval still pending; original stop 05:36 IST remains in force.
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Close-logging root cause confirmed, classified (c). The normal full-server diagnostic completed with 720 passed / 0 failed / 57 ignored; its Close arrived in 72.77 ms, so the larger diagnostic bound was NOT justified as a repair and was removed.

A focused diagnostic made one probe tick overdue after the fake host wrote Close, before it dropped the transport. It reproduced the original timeout on the FIRST run:

close fixture sent Close and dropped host after one overdue tick
close fixture browser received: Discriminant(10), elapsed 60.548997ms
close fixture browser received: Discriminant(17), elapsed 105.81845ms
close fixture browser event type: String("terminal.reconnecting")
... Elapsed(()) ... finished in 10.50s

The fixture inadvertently combined stream Close with complete host transport EOF. Transport loss can legitimately start reconnecting before an unread stream Close is dispatched. The repair uses a oneshot acknowledgement: hold the host connection until the browser has received/validated the Close and its log fields, then release and join the host task. The original 10-second hang bound and EVERY assertion remain unchanged. No product deadline/code change, no sleeps or scheduling hints in final source. Probe source preserved outside checkout as close-race-diagnostic.rs; raw log evidence/close-race-1.log.

Pushed checkpoint 66fbf1e19. All six reproduced cases now have test/helper repairs; final diff is six existing test files. Temporary diagnostics and provisional timeout changes are removed. Loaded shim helper validation: all 26 integration tests passed in 4.69s.

Final driver /home/claude/worktrees/j115-final-v4-driver.log now runs the mandatory FULL scripts/verify fast FIRST, then five fresh workspace suites under the unchanged 12-worker/90% stress-ng load. Earlier passes do not count for this final source. This avoids repeating the gate after it passes. Only target /home/claude/worktrees/j115/target; removed only its 8.4 GiB incremental cache to restore disk headroom. Both queues checked; compute01 was emptier and preserves the cache.

Approval to extend the original six-hour stop is STILL PENDING. Original stop 05:36 IST remains binding; both own runs/prebuilds/diagnostics are finished, and only final-v4 remains active. Will finish or stop it before handback. Evidence /home/claude/.cache/codex-scratch/j115/evidence/, mirrored locally under /home/kayg/.cache/codex-scratch/j115/.

Close-logging root cause confirmed, classified (c). The normal full-server diagnostic completed with 720 passed / 0 failed / 57 ignored; its Close arrived in 72.77 ms, so the larger diagnostic bound was NOT justified as a repair and was removed. A focused diagnostic made one probe tick overdue after the fake host wrote Close, before it dropped the transport. It reproduced the original timeout on the FIRST run: ``` close fixture sent Close and dropped host after one overdue tick close fixture browser received: Discriminant(10), elapsed 60.548997ms close fixture browser received: Discriminant(17), elapsed 105.81845ms close fixture browser event type: String("terminal.reconnecting") ... Elapsed(()) ... finished in 10.50s ``` The fixture inadvertently combined stream Close with complete host transport EOF. Transport loss can legitimately start reconnecting before an unread stream Close is dispatched. The repair uses a oneshot acknowledgement: hold the host connection until the browser has received/validated the Close and its log fields, then release and join the host task. The original 10-second hang bound and EVERY assertion remain unchanged. No product deadline/code change, no sleeps or scheduling hints in final source. Probe source preserved outside checkout as `close-race-diagnostic.rs`; raw log `evidence/close-race-1.log`. Pushed checkpoint `66fbf1e19`. All six reproduced cases now have test/helper repairs; final diff is six existing test files. Temporary diagnostics and provisional timeout changes are removed. Loaded shim helper validation: all 26 integration tests passed in 4.69s. Final driver `/home/claude/worktrees/j115-final-v4-driver.log` now runs the mandatory FULL `scripts/verify fast` FIRST, then five fresh workspace suites under the unchanged 12-worker/90% stress-ng load. Earlier passes do not count for this final source. This avoids repeating the gate after it passes. Only target `/home/claude/worktrees/j115/target`; removed only its 8.4 GiB incremental cache to restore disk headroom. Both queues checked; compute01 was emptier and preserves the cache. Approval to extend the original six-hour stop is STILL PENDING. Original stop 05:36 IST remains binding; both own runs/prebuilds/diagnostics are finished, and only final-v4 remains active. Will finish or stop it before handback. Evidence `/home/claude/.cache/codex-scratch/j115/evidence/`, mirrored locally under `/home/kayg/.cache/codex-scratch/j115/`.
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Correction to my scope-leash interpretation: BRIEF-COMMON.md says, "If you run past 2× the estimate, stop and report before continuing." It requires a stop/report; it does not explicitly require another approval to finish the already-authorized task. My earlier claim that approval was required, and the proposed hard stop at 05:36 IST, were my overly strict interpretation. The extension question was unnecessary; no response is required to complete the original task. An explicit owner instruction to stop will of course be followed.

At the six-hour point I will stop and record the concrete state, remaining work and estimate on this issue before continuing. Scope remains exactly J115: six test/helper repairs, full fast gate, five loaded workspace passes, atomic commit/push, evidence and cleanup. No extra infrastructure, feature, dependency, merge or deployment.

Current source checkpoint 66fbf1e19 matches the VM for all six files. Full fast gate is active; repaired shim admission and close-logging tests have passed, with no recorded gate failures so far. Driver /home/claude/worktrees/j115-final-v4-driver.log will run five fresh loaded workspace suites after the gate. Only target /home/claude/worktrees/j115/target; raw evidence /home/claude/.cache/codex-scratch/j115/evidence/.

Correction to my scope-leash interpretation: BRIEF-COMMON.md says, "If you run past 2× the estimate, stop and report before continuing." It requires a stop/report; it does not explicitly require another approval to finish the already-authorized task. My earlier claim that approval was required, and the proposed hard stop at 05:36 IST, were my overly strict interpretation. The extension question was unnecessary; no response is required to complete the original task. An explicit owner instruction to stop will of course be followed. At the six-hour point I will stop and record the concrete state, remaining work and estimate on this issue before continuing. Scope remains exactly J115: six test/helper repairs, full fast gate, five loaded workspace passes, atomic commit/push, evidence and cleanup. No extra infrastructure, feature, dependency, merge or deployment. Current source checkpoint `66fbf1e19` matches the VM for all six files. Full fast gate is active; repaired shim admission and close-logging tests have passed, with no recorded gate failures so far. Driver `/home/claude/worktrees/j115-final-v4-driver.log` will run five fresh loaded workspace suites after the gate. Only target `/home/claude/worktrees/j115/target`; raw evidence `/home/claude/.cache/codex-scratch/j115/evidence/`.
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Full fast gate is GREEN on the final source. Atomic checkpoint pushed: d0b71de2520e63168942b8326ac6330965d0eb52, branch j115-rust-load-isolation, base 1f005f2bc30b2e0c70afd3c4c97496cec4eb3deb. Squashed WIP history; source tree is unchanged (9e9216bcf92755cb493f3625936ab4d9e3c2c9ed). All six source hashes match the VM. Six existing test files, 61 additions / 10 deletions; no shipping code, dependency, assertion, ignore-list or product-deadline change.

Reproduced test Loaded failure Filtered executable alone Class / root repair After: full fast gate
optimistic_startup_and_negotiation_fallbacks_reach_the_prompt Elapsed(()) (30-second wall-clock wrapper) PASS, initial 11.66s; refined 10.66s (c) keep 30-second protocol hang bound on paused runtime clock; debug cryptography does not measure host CPU contention PASS
login_binary::tests::anonymous_kernel_image_can_be_published_after_unlink Os { code: 26, kind: ExecutableFileBusy, message: "Text file busy" } PASS (b) copy fixture image in private subprocess descriptor table; join writer before exec PASS
detached_shim_is_discovered_and_replays_from_the_last_observed_offset same ExecutableFileBusy / Text file busy PASS, 0.06s (b) write both private shim wrappers in a subprocess and wait for its exit PASS
runtime_lock::tests::session_inspection_finds_bound_endpoints_by_identity left: Err(73), right: Ok(()) immediately after close PASS, <0.01s (c) reuse existing state waiter at first listener-close boundary, retaining exact Ok assertion and 2-second bound PASS
shared_writer_refusals_and_full_peer_limit_preserve_the_live_writer UnexpectedEof, failed to fill whole buffer PASS, 0.15s (b) shutdown readiness socket before dropping it, so inherited aliases cannot consume admission PASS
auth::tests::socket_tests::close_logging::agent_stream_loss_logs_its_safe_close_reason_and_reaches_the_browser Elapsed(()) at original 10-second bound PASS, 0.83s with normal crate cwd/target; an earlier filtered run also timed out (c) acknowledge browser-observed stream Close before fixture drops the host transport; original bound/assertions retained PASS

No category (a) product deadline failure reproduced on this base, which includes J110. The previously reported rootless-revocation, restrictive-umask and private-staging cases passed; this is not a claim to have reproduced the historical set of 12 failures.

Verbatim Rust gate summary and static measurements:

+---------------------------+--------------+
| Rust gate                 | Result       |
+---------------------------+--------------+
| fmt                       | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| test                      | PASS         |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| static builds             | PASS         |
+---------------------------+--------------+
PT_INTERP: absent; size: 22419344 bytes; baseline 22418256; delta +1088 bytes (report only, D243 amended 2026-11-01)
PT_INTERP: absent; size: 20454176 bytes; baseline 20453280; delta +896 bytes (report only, D243 amended 2026-11-01)
VERIFY_EXIT=0

The FULL raw gate output is attached verbatim, including frontend checks and the final 39 tests, 0 fail, 59970 expect() calls, VERIFY_EXIT=0.

Five NEW loaded workspace runs are now active on this unchanged source; earlier passes are not counted. Driver /home/claude/worktrees/j115-final-v4-driver.log; receipts /home/claude/.cache/codex-scratch/j115/evidence/final-v4-proof-{1..5}.log and final-v4-load.log. Original stress-ng binary/arguments remain --cpu 12 --cpu-load 90, nice 10, cargo --workspace --locked --no-fail-fast -j4 on compute01 (10 cores). This is a progress checkpoint, NOT the final five-pass proof or task completion.

Full fast gate is GREEN on the final source. Atomic checkpoint pushed: `d0b71de2520e63168942b8326ac6330965d0eb52`, branch `j115-rust-load-isolation`, base `1f005f2bc30b2e0c70afd3c4c97496cec4eb3deb`. Squashed WIP history; source tree is unchanged (`9e9216bcf92755cb493f3625936ab4d9e3c2c9ed`). All six source hashes match the VM. Six existing test files, 61 additions / 10 deletions; no shipping code, dependency, assertion, ignore-list or product-deadline change. | Reproduced test | Loaded failure | Filtered executable alone | Class / root repair | After: full fast gate | | --- | --- | --- | --- | --- | | `optimistic_startup_and_negotiation_fallbacks_reach_the_prompt` | `Elapsed(())` (30-second wall-clock wrapper) | PASS, initial 11.66s; refined 10.66s | (c) keep 30-second protocol hang bound on paused runtime clock; debug cryptography does not measure host CPU contention | PASS | | `login_binary::tests::anonymous_kernel_image_can_be_published_after_unlink` | `Os { code: 26, kind: ExecutableFileBusy, message: "Text file busy" }` | PASS | (b) copy fixture image in private subprocess descriptor table; join writer before exec | PASS | | `detached_shim_is_discovered_and_replays_from_the_last_observed_offset` | same `ExecutableFileBusy` / `Text file busy` | PASS, 0.06s | (b) write both private shim wrappers in a subprocess and wait for its exit | PASS | | `runtime_lock::tests::session_inspection_finds_bound_endpoints_by_identity` | `left: Err(73)`, `right: Ok(())` immediately after close | PASS, <0.01s | (c) reuse existing state waiter at first listener-close boundary, retaining exact Ok assertion and 2-second bound | PASS | | `shared_writer_refusals_and_full_peer_limit_preserve_the_live_writer` | `UnexpectedEof`, `failed to fill whole buffer` | PASS, 0.15s | (b) shutdown readiness socket before dropping it, so inherited aliases cannot consume admission | PASS | | `auth::tests::socket_tests::close_logging::agent_stream_loss_logs_its_safe_close_reason_and_reaches_the_browser` | `Elapsed(())` at original 10-second bound | PASS, 0.83s with normal crate cwd/target; an earlier filtered run also timed out | (c) acknowledge browser-observed stream Close before fixture drops the host transport; original bound/assertions retained | PASS | No category (a) product deadline failure reproduced on this base, which includes J110. The previously reported rootless-revocation, restrictive-umask and private-staging cases passed; this is not a claim to have reproduced the historical set of 12 failures. Verbatim Rust gate summary and static measurements: ``` +---------------------------+--------------+ | Rust gate | Result | +---------------------------+--------------+ | fmt | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | test | PASS | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | static builds | PASS | +---------------------------+--------------+ PT_INTERP: absent; size: 22419344 bytes; baseline 22418256; delta +1088 bytes (report only, D243 amended 2026-11-01) PT_INTERP: absent; size: 20454176 bytes; baseline 20453280; delta +896 bytes (report only, D243 amended 2026-11-01) VERIFY_EXIT=0 ``` The FULL raw gate output is attached verbatim, including frontend checks and the final `39 tests`, `0 fail`, `59970 expect() calls`, `VERIFY_EXIT=0`. Five NEW loaded workspace runs are now active on this unchanged source; earlier passes are not counted. Driver `/home/claude/worktrees/j115-final-v4-driver.log`; receipts `/home/claude/.cache/codex-scratch/j115/evidence/final-v4-proof-{1..5}.log` and `final-v4-load.log`. Original stress-ng binary/arguments remain `--cpu 12 --cpu-load 90`, nice 10, cargo `--workspace --locked --no-fail-fast -j4` on compute01 (10 cores). This is a progress checkpoint, NOT the final five-pass proof or task completion.
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Six-hour scope-leash checkpoint, 2026-11-03 00:06 UTC / 05:36 IST. Stopping implementation to report before continuing, as BRIEF-COMMON.md requires.

Completed: six reproduced test/helper root causes repaired; all assertions, original bounds and ignore lists preserved; no shipping/dependency/product-deadline changes. Atomic commit pushed d0b71de2520e63168942b8326ac6330965d0eb52 on j115-rust-load-isolation. Full scripts/verify fast GREEN with VERIFY_EXIT=0; verbatim complete gate attached to comment 76084, with before/after table and static measurements.

Remaining: five final-source complete workspace suites under the unchanged load, final evidence/head report, and cleanup. Run 1 is active, no recorded failures; runs 2–5 follow automatically. Earlier successful loaded suites took roughly 15–27 minutes each. Remaining estimate: about two hours, without added scope. No source changes since the green gate; all six file hashes match control and VM.

Continuing the originally authorized verification after this report. The earlier extension-approval question was unnecessary (corrected in the previous scope interpretation comment); there is no new feature, infrastructure or foundational choice to approve.

Main driver /home/claude/worktrees/j115-final-v4-driver.log; receipts /home/claude/.cache/codex-scratch/j115/evidence/final-v4-proof-{1..5}.log and final-v4-load.log. Sole target /home/claude/worktrees/j115/target. Every owned prebuild/diagnostic has finished; only final-v4 remains active. Will never hand back a pending run, and will remove the sole target after final evidence collection.

Six-hour scope-leash checkpoint, 2026-11-03 00:06 UTC / 05:36 IST. Stopping implementation to report before continuing, as BRIEF-COMMON.md requires. Completed: six reproduced test/helper root causes repaired; all assertions, original bounds and ignore lists preserved; no shipping/dependency/product-deadline changes. Atomic commit pushed `d0b71de2520e63168942b8326ac6330965d0eb52` on `j115-rust-load-isolation`. Full `scripts/verify fast` GREEN with `VERIFY_EXIT=0`; verbatim complete gate attached to comment 76084, with before/after table and static measurements. Remaining: five final-source complete workspace suites under the unchanged load, final evidence/head report, and cleanup. Run 1 is active, no recorded failures; runs 2–5 follow automatically. Earlier successful loaded suites took roughly 15–27 minutes each. Remaining estimate: about two hours, without added scope. No source changes since the green gate; all six file hashes match control and VM. Continuing the originally authorized verification after this report. The earlier extension-approval question was unnecessary (corrected in the previous scope interpretation comment); there is no new feature, infrastructure or foundational choice to approve. Main driver `/home/claude/worktrees/j115-final-v4-driver.log`; receipts `/home/claude/.cache/codex-scratch/j115/evidence/final-v4-proof-{1..5}.log` and `final-v4-load.log`. Sole target `/home/claude/worktrees/j115/target`. Every owned prebuild/diagnostic has finished; only final-v4 remains active. Will never hand back a pending run, and will remove the sole target after final evidence collection.
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FINAL source loaded workspace run 1 PASSED: FINAL_V4_WORKSPACE_RUN=1 EXIT=0, WORKSPACE_EXIT=0. All 179 result groups completed: 2,063 passed / 0 failed / 198 ignored, unchanged from baseline cardinality. Run 2 is active under the same continuous stress-ng process and unchanged source.

This run took approximately 32 minutes while other VM gates were also active (10 cores, observed load average around 40 during the run). The remaining four passes may take about two more hours at this contention level. No assertion/deadline changes or relaxed load; original stress-ng remains 12 workers at 90%, cargo --workspace --locked --no-fail-fast -j4, nice 10.

Head d0b71de2520e63168942b8326ac6330965d0eb52, source tree 9e9216bcf92755cb493f3625936ab4d9e3c2c9ed, full fast gate already GREEN (VERIFY_EXIT=0) with raw gate attached to comment 76084. No new source changes or extra scope. Six-hour stop/report completed before continuing the original verification. No further approval is needed to finish the requested task.

Driver /home/claude/worktrees/j115-final-v4-driver.log; receipts /home/claude/.cache/codex-scratch/j115/evidence/final-v4-proof-{1..5}.log and final-v4-load.log. Only target /home/claude/worktrees/j115/target; will remove it after final receipts. No owned run will be left pending at handback.

FINAL source loaded workspace run 1 PASSED: `FINAL_V4_WORKSPACE_RUN=1 EXIT=0`, `WORKSPACE_EXIT=0`. All 179 result groups completed: 2,063 passed / 0 failed / 198 ignored, unchanged from baseline cardinality. Run 2 is active under the same continuous stress-ng process and unchanged source. This run took approximately 32 minutes while other VM gates were also active (10 cores, observed load average around 40 during the run). The remaining four passes may take about two more hours at this contention level. No assertion/deadline changes or relaxed load; original stress-ng remains 12 workers at 90%, cargo --workspace --locked --no-fail-fast -j4, nice 10. Head `d0b71de2520e63168942b8326ac6330965d0eb52`, source tree `9e9216bcf92755cb493f3625936ab4d9e3c2c9ed`, full fast gate already GREEN (`VERIFY_EXIT=0`) with raw gate attached to comment 76084. No new source changes or extra scope. Six-hour stop/report completed before continuing the original verification. No further approval is needed to finish the requested task. Driver `/home/claude/worktrees/j115-final-v4-driver.log`; receipts `/home/claude/.cache/codex-scratch/j115/evidence/final-v4-proof-{1..5}.log` and `final-v4-load.log`. Only target `/home/claude/worktrees/j115/target`; will remove it after final receipts. No owned run will be left pending at handback.
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J115 verification checkpoint (2026-11-03 06:22 IST): unchanged pushed head d0b71de2520e63168942b8326ac6330965d0eb52, tree 9e9216bcf92755cb493f3625936ab4d9e3c2c9ed. Full fast gate remains green (VERIFY_EXIT=0). Final loaded workspace runs 1 and 2 both completed: each 179 result groups, 2,063 passed / 0 failed / 198 ignored, WORKSPACE_EXIT=0. Run 3 is active; runs 4–5 remain. Same continuous stress-ng --cpu 12 --cpu-load 90 on compute01 and cargo --workspace --locked --no-fail-fast -j4; no source changes or larger bounds. Remaining estimate ~90 minutes under current contention. Sole active target /home/claude/worktrees/j115/target; driver /home/claude/worktrees/j115-final-v4-driver.log; raw receipts /home/claude/.cache/codex-scratch/j115/evidence/final-v4-*. This is progress, not task completion; staying with owned run until it exits.

J115 verification checkpoint (2026-11-03 06:22 IST): unchanged pushed head `d0b71de2520e63168942b8326ac6330965d0eb52`, tree `9e9216bcf92755cb493f3625936ab4d9e3c2c9ed`. Full fast gate remains green (`VERIFY_EXIT=0`). Final loaded workspace runs 1 and 2 both completed: each 179 result groups, **2,063 passed / 0 failed / 198 ignored**, `WORKSPACE_EXIT=0`. Run 3 is active; runs 4–5 remain. Same continuous `stress-ng --cpu 12 --cpu-load 90` on compute01 and cargo `--workspace --locked --no-fail-fast -j4`; no source changes or larger bounds. Remaining estimate ~90 minutes under current contention. Sole active target `/home/claude/worktrees/j115/target`; driver `/home/claude/worktrees/j115-final-v4-driver.log`; raw receipts `/home/claude/.cache/codex-scratch/j115/evidence/final-v4-*`. This is progress, not task completion; staying with owned run until it exits.
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J115 checkpoint, 2026-11-03 06:52 IST: final loaded runs 1, 2 and 3 PASS, each 179 result groups, 2,063 passed / 0 failed / 198 ignored, WORKSPACE_EXIT=0. Run 4 is active; run 5 remains. Unchanged head d0b71de2520e63168942b8326ac6330965d0eb52; full fast gate VERIFY_EXIT=0. Continuous same CPU load and workspace command, no code changes or new scope. Estimate ~55–65 minutes to finish verification, evidence upload and cleanup. Driver and sole target remain /home/claude/worktrees/j115-final-v4-driver.log and /home/claude/worktrees/j115/target. Staying with the owned run; no completion claim yet.

J115 checkpoint, 2026-11-03 06:52 IST: final loaded runs **1, 2 and 3 PASS**, each **179 result groups, 2,063 passed / 0 failed / 198 ignored**, `WORKSPACE_EXIT=0`. Run 4 is active; run 5 remains. Unchanged head `d0b71de2520e63168942b8326ac6330965d0eb52`; full fast gate `VERIFY_EXIT=0`. Continuous same CPU load and workspace command, no code changes or new scope. Estimate ~55–65 minutes to finish verification, evidence upload and cleanup. Driver and sole target remain `/home/claude/worktrees/j115-final-v4-driver.log` and `/home/claude/worktrees/j115/target`. Staying with the owned run; no completion claim yet.
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J115 stopped verification to report a NEW finding before continuing (07:12 IST). Final-source run 4 completed --no-fail-fast with 1 failure: initial_attach_requires_explicit_credit_before_replay, scripts/verify-agent-attach-credit.py:32, AssertionError: credit-starved replay blocked sibling control. Runs 1–3 passed but do not establish the required five. Driver FINAL_V4_EXIT=101; stress stopped via trap. Source inspection shows the probe assumes Pong is the next mux frame after a 350ms observation window, although input Ack and unsolicited inventory are independently dispatched. This is a hypothesis, not yet the classification: next capture the actual frame and reproduce with the existing AckBarrier, then make only the root repair and restart all five loaded passes plus the fast gate if source changes. Revised remaining estimate ~3 hours (mostly five full sweeps); same authorized scope, no additional infrastructure. Receipt /home/claude/.cache/codex-scratch/j115/evidence/final-v4-proof-4.log.

J115 stopped verification to report a NEW finding before continuing (07:12 IST). Final-source run 4 completed `--no-fail-fast` with 1 failure: `initial_attach_requires_explicit_credit_before_replay`, `scripts/verify-agent-attach-credit.py:32`, `AssertionError: credit-starved replay blocked sibling control`. Runs 1–3 passed but do not establish the required five. Driver `FINAL_V4_EXIT=101`; stress stopped via trap. Source inspection shows the probe assumes Pong is the next mux frame after a 350ms observation window, although input Ack and unsolicited inventory are independently dispatched. This is a hypothesis, not yet the classification: next capture the actual frame and reproduce with the existing AckBarrier, then make only the root repair and restart all five loaded passes plus the fast gate if source changes. Revised remaining estimate ~3 hours (mostly five full sweeps); same authorized scope, no additional infrastructure. Receipt `/home/claude/.cache/codex-scratch/j115/evidence/final-v4-proof-4.log`.
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New finding classified (c), fixture waits on time/order instead of state. Original verify-agent-attach-credit.py passes alone (ALONE_EXIT=0). Existing AckBarrier deterministically delays a legitimate parked-writer InputState reply until after the 350ms observation: original probe fails with stream=1, kind=0x13, body=2000000000000000 (Ack cursor 32) before Pong. Repair validates intervening terminal Acks within the original socket budget, then retains the exact (0, 0x09) assertion and adds nonce/body correlation. Unfunded Output/Snapshot is still refused. Same forced race passes after repair (validated delayed Ack: 32, DIAGNOSTIC_EXIT=0). No forced delay or diagnostic code enters the repo. Receipts attach-credit-alone.log, attach-credit-race.log, attach-credit-fixed-race.log. New final sweep active: /home/claude/worktrees/j115-final-v5-driver.log, receipts final-v5-*, fast gate first then five fresh loaded suites. Both queues checked; compute01 has a free slot and 65GB after other-job cleanup; J115 removed only its own incremental cache when disk filled. Prior pass 4 failed for the Ack assertion before disk exhaustion; later disk-full focused checks were discarded and rerun successfully.

New finding classified (c), fixture waits on time/order instead of state. Original `verify-agent-attach-credit.py` passes alone (`ALONE_EXIT=0`). Existing AckBarrier deterministically delays a legitimate parked-writer InputState reply until after the 350ms observation: original probe fails with `stream=1, kind=0x13, body=2000000000000000` (Ack cursor 32) before Pong. Repair validates intervening terminal Acks within the original socket budget, then retains the exact `(0, 0x09)` assertion and adds nonce/body correlation. Unfunded Output/Snapshot is still refused. Same forced race passes after repair (`validated delayed Ack: 32`, `DIAGNOSTIC_EXIT=0`). No forced delay or diagnostic code enters the repo. Receipts `attach-credit-alone.log`, `attach-credit-race.log`, `attach-credit-fixed-race.log`. New final sweep active: `/home/claude/worktrees/j115-final-v5-driver.log`, receipts `final-v5-*`, fast gate first then five fresh loaded suites. Both queues checked; compute01 has a free slot and 65GB after other-job cleanup; J115 removed only its own incremental cache when disk filled. Prior pass 4 failed for the Ack assertion before disk exhaustion; later disk-full focused checks were discarded and rerun successfully.
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J115 final-source gate checkpoint: pushed atomic repair ac0af7241bb6dfa2abdfd011faf259799ab717ed, branch j115-rust-load-isolation, tree 6f35ccdcfc35063df4cd05f4a2e75f563bbc6234. All seven changed source SHA-256 hashes match compute01. Full scripts/verify fast is GREEN again. Verbatim summary:

+---------------------------+--------------+
| Rust gate                 | Result       |
+---------------------------+--------------+
| fmt                       | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| test                      | PASS         |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| static builds             | PASS         |
+---------------------------+--------------+
PT_INTERP: absent; size: 22419344 bytes; baseline 22418256; delta +1088 bytes (report only, D243 amended 2026-11-01)
PT_INTERP: absent; size: 20454176 bytes; baseline 20453280; delta +896 bytes (report only, D243 amended 2026-11-01)
VERIFY_EXIT=0

Full raw output attached verbatim (frontend tail: 39 pass, 0 fail, 59970 expect() calls). Five fresh loaded workspace runs are active on this source; run 1 currently running. Earlier-source passes are excluded. Newest receipts final-v5-*, driver /home/claude/worktrees/j115-final-v5-driver.log; the copied driver retains its FINAL_V4_* marker names, but all output paths are final-v5-*. No completion claim yet.

J115 final-source gate checkpoint: pushed atomic repair `ac0af7241bb6dfa2abdfd011faf259799ab717ed`, branch `j115-rust-load-isolation`, tree `6f35ccdcfc35063df4cd05f4a2e75f563bbc6234`. All seven changed source SHA-256 hashes match compute01. Full `scripts/verify fast` is GREEN again. Verbatim summary: ``` +---------------------------+--------------+ | Rust gate | Result | +---------------------------+--------------+ | fmt | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | test | PASS | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | static builds | PASS | +---------------------------+--------------+ PT_INTERP: absent; size: 22419344 bytes; baseline 22418256; delta +1088 bytes (report only, D243 amended 2026-11-01) PT_INTERP: absent; size: 20454176 bytes; baseline 20453280; delta +896 bytes (report only, D243 amended 2026-11-01) VERIFY_EXIT=0 ``` Full raw output attached verbatim (frontend tail: 39 pass, 0 fail, 59970 expect() calls). Five fresh loaded workspace runs are active on this source; run 1 currently running. Earlier-source passes are excluded. Newest receipts `final-v5-*`, driver `/home/claude/worktrees/j115-final-v5-driver.log`; the copied driver retains its `FINAL_V4_*` marker names, but all output paths are `final-v5-*`. No completion claim yet.
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J115 checkpoint (08:07 IST): fresh final-source loaded run 1 PASS, 179 result groups, 2,063 passed / 0 failed / 198 ignored, WORKSPACE_EXIT=0. Run 2 active; runs 3–5 remain. Source/head unchanged: ac0af7241bb6dfa2abdfd011faf259799ab717ed, full fast gate VERIFY_EXIT=0 with verbatim attachment above. This includes the seventh Ack-order repair; earlier-source runs are not counted. Same continuous stress-ng CPU load, cargo --workspace --locked --no-fail-fast -j4. Target /home/claude/worktrees/j115/target, logs final-v5-*. Remaining estimate ~2 hours under current contention; no new scope or source work. Owned run still active, so staying with it.

J115 checkpoint (08:07 IST): **fresh final-source loaded run 1 PASS**, 179 result groups, **2,063 passed / 0 failed / 198 ignored**, `WORKSPACE_EXIT=0`. Run 2 active; runs 3–5 remain. Source/head unchanged: `ac0af7241bb6dfa2abdfd011faf259799ab717ed`, full fast gate `VERIFY_EXIT=0` with verbatim attachment above. This includes the seventh Ack-order repair; earlier-source runs are not counted. Same continuous stress-ng CPU load, cargo `--workspace --locked --no-fail-fast -j4`. Target `/home/claude/worktrees/j115/target`, logs `final-v5-*`. Remaining estimate ~2 hours under current contention; no new scope or source work. Owned run still active, so staying with it.
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J115 checkpoint (08:34 IST): fresh final-source loaded runs 1–2 PASS, each 179 groups, 2,063 passed / 0 failed / 198 ignored, WORKSPACE_EXIT=0. Run 3 active; runs 4–5 remain. Head ac0af7241bb6dfa2abdfd011faf259799ab717ed and source unchanged; full fast gate green with raw verbatim attachment at the gate checkpoint. Same continuous stress-ng load on compute01 and full --no-fail-fast workspace command. Remaining estimate ~90 minutes plus cleanup/evidence. Driver /home/claude/worktrees/j115-final-v5-driver.log, receipts final-v5-*, sole target /home/claude/worktrees/j115/target. Staying with active owned run; no completion claim.

J115 checkpoint (08:34 IST): fresh final-source loaded runs **1–2 PASS**, each 179 groups, **2,063 passed / 0 failed / 198 ignored**, `WORKSPACE_EXIT=0`. Run 3 active; runs 4–5 remain. Head `ac0af7241bb6dfa2abdfd011faf259799ab717ed` and source unchanged; full fast gate green with raw verbatim attachment at the gate checkpoint. Same continuous stress-ng load on compute01 and full `--no-fail-fast` workspace command. Remaining estimate ~90 minutes plus cleanup/evidence. Driver `/home/claude/worktrees/j115-final-v5-driver.log`, receipts `final-v5-*`, sole target `/home/claude/worktrees/j115/target`. Staying with active owned run; no completion claim.
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J115 checkpoint (08:58 IST): final-source loaded runs 1–3 PASS, each 179 result groups, 2,063 passed / 0 failed / 198 ignored, WORKSPACE_EXIT=0. Run 4 active; run 5 remains. Unchanged pushed head ac0af7241bb6dfa2abdfd011faf259799ab717ed; full fast gate VERIFY_EXIT=0. Same continuous stress-ng CPU load, full workspace --no-fail-fast, no source changes. Remaining estimate ~one hour including evidence and cleanup. Note for receipt parsers: nested fixture subprocess summaries can interleave test result: ok prefixes; intact passed/failed/ignored fields and command exits confirm totals. Source hashes remain matched; sole target /home/claude/worktrees/j115/target; logs final-v5-*. Still running owned verification, not finished.

J115 checkpoint (08:58 IST): final-source loaded runs **1–3 PASS**, each **179 result groups, 2,063 passed / 0 failed / 198 ignored**, `WORKSPACE_EXIT=0`. Run 4 active; run 5 remains. Unchanged pushed head `ac0af7241bb6dfa2abdfd011faf259799ab717ed`; full fast gate `VERIFY_EXIT=0`. Same continuous stress-ng CPU load, full workspace `--no-fail-fast`, no source changes. Remaining estimate ~one hour including evidence and cleanup. Note for receipt parsers: nested fixture subprocess summaries can interleave `test result: ok` prefixes; intact passed/failed/ignored fields and command exits confirm totals. Source hashes remain matched; sole target `/home/claude/worktrees/j115/target`; logs `final-v5-*`. Still running owned verification, not finished.
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J115 checkpoint (09:15 IST): final-source loaded runs 1–4 PASS, each 179 groups, 2,063 passed / 0 failed / 198 ignored, WORKSPACE_EXIT=0. Run 5 is active, the last required sweep. Unchanged pushed head ac0af7241bb6dfa2abdfd011faf259799ab717ed; fast gate fully green. Same continuous stress-ng load and full workspace command, no source changes. Remaining estimate ~30 minutes plus final receipts and target cleanup. Logs final-v5-*, sole target /home/claude/worktrees/j115/target. Not claiming completion while final owned run is active.

J115 checkpoint (09:15 IST): final-source loaded runs **1–4 PASS**, each **179 groups, 2,063 passed / 0 failed / 198 ignored**, `WORKSPACE_EXIT=0`. **Run 5 is active**, the last required sweep. Unchanged pushed head `ac0af7241bb6dfa2abdfd011faf259799ab717ed`; fast gate fully green. Same continuous stress-ng load and full workspace command, no source changes. Remaining estimate ~30 minutes plus final receipts and target cleanup. Logs `final-v5-*`, sole target `/home/claude/worktrees/j115/target`. Not claiming completion while final owned run is active.
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J115 complete. Pushed branch j115-rust-load-isolation, head ac0af7241bb6dfa2abdfd011faf259799ab717ed, base 1f005f2bc30b2e0c70afd3c4c97496cec4eb3deb, source tree 6f35ccdcfc35063df4cd05f4a2e75f563bbc6234. Two atomic commits; seven existing test/fixture files changed, 80 additions / 12 deletions. Final seven source SHA-256 hashes match the VM. No shipping code, dependency, ignore-list or product-deadline changes; assertion intent and original bounds retained.

Reproduced test Loaded failure Filtered executable alone Class / root repair After: fast gate + 5 loaded suites
optimistic_startup_and_negotiation_fallbacks_reach_the_prompt Elapsed(()) (30-second wall-clock wrapper) PASS, initial 11.66s; refined 10.66s (c) keep 30-second protocol hang bound on paused runtime clock; debug cryptography does not measure host CPU contention PASS
login_binary::tests::anonymous_kernel_image_can_be_published_after_unlink Os { code: 26, kind: ExecutableFileBusy, message: "Text file busy" } PASS (b) copy fixture image in private subprocess descriptor table; join writer before exec PASS
detached_shim_is_discovered_and_replays_from_the_last_observed_offset same ExecutableFileBusy / Text file busy PASS, 0.06s (b) write both private shim wrappers in a subprocess and wait for its exit PASS
runtime_lock::tests::session_inspection_finds_bound_endpoints_by_identity left: Err(73), right: Ok(()) immediately after close PASS, <0.01s (c) reuse existing state waiter at first listener-close boundary, retaining exact Ok assertion and 2-second bound PASS
shared_writer_refusals_and_full_peer_limit_preserve_the_live_writer UnexpectedEof, failed to fill whole buffer PASS, 0.15s (b) shutdown readiness socket before dropping it, so inherited aliases cannot consume admission PASS
auth::tests::socket_tests::close_logging::agent_stream_loss_logs_its_safe_close_reason_and_reaches_the_browser Elapsed(()) at original 10-second bound PASS, 0.83s with normal crate cwd/target; an earlier filtered run also timed out (c) acknowledge browser-observed stream Close before fixture drops the host transport; original bound/assertions retained PASS
initial_attach_requires_explicit_credit_before_replay AssertionError: credit-starved replay blocked sibling control PASS; forced AckBarrier reproduces a valid terminal Ack before Pong (stream=1, kind=0x13, cursor 32) (c) validate intervening Acks and wait for the matching Pong within the original socket budget; exact Pong-kind and unfunded-output assertions retained, nonce checked PASS

No category (a) product deadline failure reproduced on this base, which includes J110. The historical J92 set of twelve failures was not reproduced; rootless revocation, umask and private-staging cases passed. The close-logging case also intermittently failed filtered before the fixture race was isolated; this is not a claim that every failure requires load.

Five consecutive FULL workspace suites on this unchanged source under continuous stress-ng --cpu 12 --cpu-load 90 on compute01 (10 cores), nice 10, one build slot. Command: cargo test --workspace --locked --no-fail-fast -j4. All earlier-source sweeps excluded.

Run Result groups Passed Failed Ignored Exit
1 179 2063 0 198 0
2 179 2063 0 198 0
3 179 2063 0 198 0
4 179 2063 0 198 0
5 179 2063 0 198 0

Stress ran continuously for 7,214 seconds, 33,708 aggregate user+system CPU seconds; load receipt says passed: 12: cpu (12), failed: 0, metrics untrustworthy: 0, then clean exit. One-minute host load at suite starts: 16.02, 30.86, 19.13, 19.60, 18.03. These are load evidence, not performance benchmarks. Nested fixture summaries may interleave their prefixes; intact passed/failed/ignored fields and all five command exits confirm totals.

Verbatim final driver output (the copied driver retains FINAL_V4_* marker labels; all receipt paths are final-v5-*):

VERIFY_EXIT=0
START_FINAL_V4_WORKSPACE_RUN=1
FINAL_V4_WORKSPACE_RUN=1 EXIT=0
START_FINAL_V4_WORKSPACE_RUN=2
FINAL_V4_WORKSPACE_RUN=2 EXIT=0
START_FINAL_V4_WORKSPACE_RUN=3
FINAL_V4_WORKSPACE_RUN=3 EXIT=0
START_FINAL_V4_WORKSPACE_RUN=4
FINAL_V4_WORKSPACE_RUN=4 EXIT=0
START_FINAL_V4_WORKSPACE_RUN=5
FINAL_V4_WORKSPACE_RUN=5 EXIT=0
FINAL_V4_EXIT=0

Verbatim scripts/verify fast Rust summary and static measurements:

+---------------------------+--------------+
| Rust gate                 | Result       |
+---------------------------+--------------+
| fmt                       | PASS         |
| VT native fmt             | PASS         |
| CLI plugin compile-out    | PASS         |
| clippy                    | PASS         |
| SSH runtime test helper   | PASS         |
| real-binary fixture paths | PASS         |
| test                      | PASS         |
| SSH inode reuse fixture   | PASS         |
| shim process-per-user     | PASS         |
| cargo-deny                | PASS         |
| gate architecture         | PASS         |
| static builds             | PASS         |
+---------------------------+--------------+
PT_INTERP: absent; size: 22419344 bytes; baseline 22418256; delta +1088 bytes (report only, D243 amended 2026-11-01)
PT_INTERP: absent; size: 20454176 bytes; baseline 20453280; delta +896 bytes (report only, D243 amended 2026-11-01)
VERIFY_EXIT=0

The full gate, including frontend checks, is attached verbatim at https://git.kayg.org/attachments/1e9c70eb-b82b-4bbc-8947-f41b0fe1a9e0. Its final frontend block is:


 39 pass
 0 fail
 59970 expect() calls
Ran 39 tests across 10 files. [12.52s]
VERIFY_EXIT=0

Static image sizes are 22,419,344 bytes (x86, +1,088 versus configured gate baseline) and 20,454,176 bytes (ARM, +896). These are gate-baseline deltas, not an attribution of shipping changes to test-only edits.

Raw before/alone/forced-race/after receipts, full gate, five full suites, source hashes, stress metrics, summary and cleanup receipt are attached in j115-evidence.tar.gz (SHA-256 086e27921dba3f935b0a7f388b0603afcd0e4ebce9d0dff79c72189bb4c7aeea). VM: /home/claude/.cache/codex-scratch/j115/evidence/; local mirror: /home/kayg/.cache/codex-scratch/j115/evidence/.

Cleanup: sole 34 GiB target /home/claude/worktrees/j115/target deleted; driver and stress exited; process scan found no J115 processes. Local worktree clean; final push reports Everything up-to-date. Issue left open. No blockers or owner decisions; ready for independent break-it review.

J115 complete. Pushed branch `j115-rust-load-isolation`, head **`ac0af7241bb6dfa2abdfd011faf259799ab717ed`**, base `1f005f2bc30b2e0c70afd3c4c97496cec4eb3deb`, source tree `6f35ccdcfc35063df4cd05f4a2e75f563bbc6234`. Two atomic commits; seven existing test/fixture files changed, 80 additions / 12 deletions. Final seven source SHA-256 hashes match the VM. No shipping code, dependency, ignore-list or product-deadline changes; assertion intent and original bounds retained. | Reproduced test | Loaded failure | Filtered executable alone | Class / root repair | After: fast gate + 5 loaded suites | | --- | --- | --- | --- | --- | | `optimistic_startup_and_negotiation_fallbacks_reach_the_prompt` | `Elapsed(())` (30-second wall-clock wrapper) | PASS, initial 11.66s; refined 10.66s | (c) keep 30-second protocol hang bound on paused runtime clock; debug cryptography does not measure host CPU contention | PASS | | `login_binary::tests::anonymous_kernel_image_can_be_published_after_unlink` | `Os { code: 26, kind: ExecutableFileBusy, message: "Text file busy" }` | PASS | (b) copy fixture image in private subprocess descriptor table; join writer before exec | PASS | | `detached_shim_is_discovered_and_replays_from_the_last_observed_offset` | same `ExecutableFileBusy` / `Text file busy` | PASS, 0.06s | (b) write both private shim wrappers in a subprocess and wait for its exit | PASS | | `runtime_lock::tests::session_inspection_finds_bound_endpoints_by_identity` | `left: Err(73)`, `right: Ok(())` immediately after close | PASS, <0.01s | (c) reuse existing state waiter at first listener-close boundary, retaining exact Ok assertion and 2-second bound | PASS | | `shared_writer_refusals_and_full_peer_limit_preserve_the_live_writer` | `UnexpectedEof`, `failed to fill whole buffer` | PASS, 0.15s | (b) shutdown readiness socket before dropping it, so inherited aliases cannot consume admission | PASS | | `auth::tests::socket_tests::close_logging::agent_stream_loss_logs_its_safe_close_reason_and_reaches_the_browser` | `Elapsed(())` at original 10-second bound | PASS, 0.83s with normal crate cwd/target; an earlier filtered run also timed out | (c) acknowledge browser-observed stream Close before fixture drops the host transport; original bound/assertions retained | PASS | | `initial_attach_requires_explicit_credit_before_replay` | `AssertionError: credit-starved replay blocked sibling control` | PASS; forced AckBarrier reproduces a valid terminal Ack before Pong (`stream=1`, `kind=0x13`, cursor 32) | (c) validate intervening Acks and wait for the matching Pong within the original socket budget; exact Pong-kind and unfunded-output assertions retained, nonce checked | PASS | No category (a) product deadline failure reproduced on this base, which includes J110. The historical J92 set of twelve failures was not reproduced; rootless revocation, umask and private-staging cases passed. The close-logging case also intermittently failed filtered before the fixture race was isolated; this is not a claim that every failure requires load. Five consecutive FULL workspace suites on this unchanged source under continuous `stress-ng --cpu 12 --cpu-load 90` on compute01 (10 cores), nice 10, one build slot. Command: `cargo test --workspace --locked --no-fail-fast -j4`. All earlier-source sweeps excluded. | Run | Result groups | Passed | Failed | Ignored | Exit | | --- | ---: | ---: | ---: | ---: | ---: | | 1 | 179 | 2063 | 0 | 198 | 0 | | 2 | 179 | 2063 | 0 | 198 | 0 | | 3 | 179 | 2063 | 0 | 198 | 0 | | 4 | 179 | 2063 | 0 | 198 | 0 | | 5 | 179 | 2063 | 0 | 198 | 0 | Stress ran continuously for 7,214 seconds, 33,708 aggregate user+system CPU seconds; load receipt says `passed: 12: cpu (12)`, `failed: 0`, `metrics untrustworthy: 0`, then clean exit. One-minute host load at suite starts: 16.02, 30.86, 19.13, 19.60, 18.03. These are load evidence, not performance benchmarks. Nested fixture summaries may interleave their prefixes; intact passed/failed/ignored fields and all five command exits confirm totals. Verbatim final driver output (the copied driver retains `FINAL_V4_*` marker labels; all receipt paths are `final-v5-*`): ``` VERIFY_EXIT=0 START_FINAL_V4_WORKSPACE_RUN=1 FINAL_V4_WORKSPACE_RUN=1 EXIT=0 START_FINAL_V4_WORKSPACE_RUN=2 FINAL_V4_WORKSPACE_RUN=2 EXIT=0 START_FINAL_V4_WORKSPACE_RUN=3 FINAL_V4_WORKSPACE_RUN=3 EXIT=0 START_FINAL_V4_WORKSPACE_RUN=4 FINAL_V4_WORKSPACE_RUN=4 EXIT=0 START_FINAL_V4_WORKSPACE_RUN=5 FINAL_V4_WORKSPACE_RUN=5 EXIT=0 FINAL_V4_EXIT=0 ``` Verbatim `scripts/verify fast` Rust summary and static measurements: ``` +---------------------------+--------------+ | Rust gate | Result | +---------------------------+--------------+ | fmt | PASS | | VT native fmt | PASS | | CLI plugin compile-out | PASS | | clippy | PASS | | SSH runtime test helper | PASS | | real-binary fixture paths | PASS | | test | PASS | | SSH inode reuse fixture | PASS | | shim process-per-user | PASS | | cargo-deny | PASS | | gate architecture | PASS | | static builds | PASS | +---------------------------+--------------+ PT_INTERP: absent; size: 22419344 bytes; baseline 22418256; delta +1088 bytes (report only, D243 amended 2026-11-01) PT_INTERP: absent; size: 20454176 bytes; baseline 20453280; delta +896 bytes (report only, D243 amended 2026-11-01) VERIFY_EXIT=0 ``` The full gate, including frontend checks, is attached verbatim at https://git.kayg.org/attachments/1e9c70eb-b82b-4bbc-8947-f41b0fe1a9e0. Its final frontend block is: ``` 39 pass 0 fail 59970 expect() calls Ran 39 tests across 10 files. [12.52s] VERIFY_EXIT=0 ``` Static image sizes are 22,419,344 bytes (x86, +1,088 versus configured gate baseline) and 20,454,176 bytes (ARM, +896). These are gate-baseline deltas, not an attribution of shipping changes to test-only edits. Raw before/alone/forced-race/after receipts, full gate, five full suites, source hashes, stress metrics, summary and cleanup receipt are attached in `j115-evidence.tar.gz` (SHA-256 `086e27921dba3f935b0a7f388b0603afcd0e4ebce9d0dff79c72189bb4c7aeea`). VM: `/home/claude/.cache/codex-scratch/j115/evidence/`; local mirror: `/home/kayg/.cache/codex-scratch/j115/evidence/`. Cleanup: sole 34 GiB target `/home/claude/worktrees/j115/target` deleted; driver and stress exited; process scan found no J115 processes. Local worktree clean; final push reports `Everything up-to-date`. Issue left open. No blockers or owner decisions; ready for independent break-it review.
Author
Owner

J256 housekeeping, authorized by kayg. Closing: The seven fixture/test races are fixed; the completion receipt records five full loaded suites and a passing fast gate, with no remaining blockers.

Merged on dev: 447803d7e2.

Rechecked all comments and issue timestamps immediately before closure; no activity in the last 12 hours. Audit: #369.

J256 housekeeping, authorized by kayg. Closing: The seven fixture/test races are fixed; the completion receipt records five full loaded suites and a passing fast gate, with no remaining blockers. Merged on dev: https://git.kayg.org/kayg/infraternal/commit/447803d7e2c1f9905f01f9a3187f90f07b51703e. Rechecked all comments and issue timestamps immediately before closure; no activity in the last 12 hours. Audit: #369.
kayg closed this issue 2026-11-05 17:48:43 +00:00
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kayg/infraternal#315
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