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
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J115: make concurrent Rust workspace gates reliable without weakening assertions.
Plan (estimate: 3 hours, stop and report at 6 hours):
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):
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 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.
Loaded baseline finding (run still collecting all workspace results):
infraternal-plugin-ssh --test mesh_startup,optimistic_startup_and_negotiation_fallbacks_reach_the_promptfailed atcrates/plugins/ssh/tests/mesh_startup.rs:143:14with: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_terminalpassed in this baseline (all 11 agent_daemon tests passed). Release private-staging unit/integration tests also passed so far. Only Rust changes since294042b56in this base are J110's status repair (70dbd9905). Full evidence remainscompute01:/home/claude/worktrees/j115/evidence/before.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.optimistic_startup_and_negotiation_fallbacks_reach_the_promptElapsed(()), shared 30-second wrapper expires after all five modes reached prompt and echo; binary 33.98sNo (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.Crash-safety checkpoint pushed:
j115-rust-load-isolationatd4549e074(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.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 90process and has passed all 11 daemon integration tests so far. Fixed head/source remains WIPd4549e074, unchanged. Logs:/home/claude/worktrees/j115/evidence/proof-1.log,proof-2.log, andproof-load.log. Driver/home/claude/worktrees/j115-proof-driver.logwill 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 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; WIPd4549e074remains the checkpoint.Evidence: compute01
/home/claude/worktrees/j115/evidence/proof-{1,2,3}.logandproof-load.log; driver/home/claude/worktrees/j115-proof-driver.log. Final full fast gate remains pending the requested five loaded passes.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: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 remainsd4549e074; no further source change yet.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_fixturesubprocess 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.Refined repairs checkpointed and pushed at
ef3728b5conj115-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.optimistic_startup_and_negotiation_fallbacks_reach_the_promptElapsed(()); diagnostic per-mode bound also expired at mode 5login_binary::tests::anonymous_kernel_image_can_be_published_after_unlinkOs { code: 26, kind: ExecutableFileBusy, message: "Text file busy" }before production publicationThe 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, andfinal-focused-ssh-{1..3}.log. Only target remains/home/claude/worktrees/j115/target. Final full fast gate still pending.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-*.logandfinal-proof-load.log. No pending process will be left at handback.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: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, branchj115-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.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 fullscripts/verify fastafter 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-*. Checkpoint1617207e1; 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.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 checkpoint1617207e1without 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 base1f005f2bc30b. Only target remains/home/claude/worktrees/j115/target. Driver/home/claude/worktrees/j115-final-v2-driver.logschedules 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-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: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_closestate 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-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 remains74caef026, source unchanged.Raw receipts:
/home/claude/.cache/codex-scratch/j115/evidence/final-v3-*. Main driver/home/claude/worktrees/j115-final-v3-driver.logwill executescripts/verify fastafter 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 logevidence/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-source proof runs 1 and 2 completed:
FINAL_V3_WORKSPACE_RUN=1 EXIT=0,FINAL_V3_WORKSPACE_RUN=2 EXIT=0,WORKSPACE_EXIT=0in each log. Run 3 is active under the same continuous stress-ng load. Source remains74caef026unchanged; 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: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-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.shared_writer_refusals_and_full_peer_limit_preserve_the_live_writer,crates/infraternal/tests/shim.rs:288:34: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.auth::tests::socket_tests::close_logging::agent_stream_loss_logs_its_safe_close_reason_and_reaches_the_browser,close_logging.rs:248:6: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; outputevidence/close-diagnose.log.Both static release prebuilds completed:
STATIC_PREBUILD_EXIT=0. Full fast gate remains pending. Current checkpoint74caef026; 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.
Checkpoint pushed
30be0b252: explicit shutdown of the initial shim readiness peer, retaining all 32-peer-limit and writer-state assertions. Socket-alias mechanism reproduced inevidence/socket-inheritance-probe.log: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; logsevidence/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.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:
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 logevidence/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.lognow runs the mandatory FULLscripts/verify fastFIRST, 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/.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
66fbf1e19matches 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.logwill 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/.Full fast gate is GREEN on the final source. Atomic checkpoint pushed:
d0b71de2520e63168942b8326ac6330965d0eb52, branchj115-rust-load-isolation, base1f005f2bc30b2e0c70afd3c4c97496cec4eb3deb. 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.optimistic_startup_and_negotiation_fallbacks_reach_the_promptElapsed(())(30-second wall-clock wrapper)login_binary::tests::anonymous_kernel_image_can_be_published_after_unlinkOs { code: 26, kind: ExecutableFileBusy, message: "Text file busy" }detached_shim_is_discovered_and_replays_from_the_last_observed_offsetExecutableFileBusy/Text file busyruntime_lock::tests::session_inspection_finds_bound_endpoints_by_identityleft: Err(73),right: Ok(())immediately after closeshared_writer_refusals_and_full_peer_limit_preserve_the_live_writerUnexpectedEof,failed to fill whole bufferauth::tests::socket_tests::close_logging::agent_stream_loss_logs_its_safe_close_reason_and_reaches_the_browserElapsed(())at original 10-second boundNo 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:
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}.logandfinal-v4-load.log. Original stress-ng binary/arguments remain--cpu 12 --cpu-load 90, nice 10, cargo--workspace --locked --no-fail-fast -j4on compute01 (10 cores). This is a progress checkpoint, NOT the final five-pass proof or task completion.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
d0b71de2520e63168942b8326ac6330965d0eb52onj115-rust-load-isolation. Fullscripts/verify fastGREEN withVERIFY_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}.logandfinal-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.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 tree9e9216bcf92755cb493f3625936ab4d9e3c2c9ed, 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}.logandfinal-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.J115 verification checkpoint (2026-11-03 06:22 IST): unchanged pushed head
d0b71de2520e63168942b8326ac6330965d0eb52, tree9e9216bcf92755cb493f3625936ab4d9e3c2c9ed. 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 continuousstress-ng --cpu 12 --cpu-load 90on 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 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 headd0b71de2520e63168942b8326ac6330965d0eb52; full fast gateVERIFY_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.logand/home/claude/worktrees/j115/target. Staying with the owned run; no completion claim yet.J115 stopped verification to report a NEW finding before continuing (07:12 IST). Final-source run 4 completed
--no-fail-fastwith 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. DriverFINAL_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.New finding classified (c), fixture waits on time/order instead of state. Original
verify-agent-attach-credit.pypasses alone (ALONE_EXIT=0). Existing AckBarrier deterministically delays a legitimate parked-writer InputState reply until after the 350ms observation: original probe fails withstream=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. Receiptsattach-credit-alone.log,attach-credit-race.log,attach-credit-fixed-race.log. New final sweep active:/home/claude/worktrees/j115-final-v5-driver.log, receiptsfinal-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.J115 final-source gate checkpoint: pushed atomic repair
ac0af7241bb6dfa2abdfd011faf259799ab717ed, branchj115-rust-load-isolation, tree6f35ccdcfc35063df4cd05f4a2e75f563bbc6234. All seven changed source SHA-256 hashes match compute01. Fullscripts/verify fastis GREEN again. Verbatim summary: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 itsFINAL_V4_*marker names, but all output paths arefinal-v5-*. No completion claim yet.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 gateVERIFY_EXIT=0with 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, logsfinal-v5-*. Remaining estimate ~2 hours under current contention; no new scope or source work. Owned run still active, so staying with it.J115 checkpoint (08:34 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. Headac0af7241bb6dfa2abdfd011faf259799ab717edand 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-fastworkspace command. Remaining estimate ~90 minutes plus cleanup/evidence. Driver/home/claude/worktrees/j115-final-v5-driver.log, receiptsfinal-v5-*, sole target/home/claude/worktrees/j115/target. Staying with active owned run; no completion claim.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 headac0af7241bb6dfa2abdfd011faf259799ab717ed; full fast gateVERIFY_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 interleavetest result: okprefixes; intact passed/failed/ignored fields and command exits confirm totals. Source hashes remain matched; sole target/home/claude/worktrees/j115/target; logsfinal-v5-*. Still running owned verification, not finished.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 headac0af7241bb6dfa2abdfd011faf259799ab717ed; 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. Logsfinal-v5-*, sole target/home/claude/worktrees/j115/target. Not claiming completion while final owned run is active.J115 complete. Pushed branch
j115-rust-load-isolation, headac0af7241bb6dfa2abdfd011faf259799ab717ed, base1f005f2bc30b2e0c70afd3c4c97496cec4eb3deb, source tree6f35ccdcfc35063df4cd05f4a2e75f563bbc6234. 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.optimistic_startup_and_negotiation_fallbacks_reach_the_promptElapsed(())(30-second wall-clock wrapper)login_binary::tests::anonymous_kernel_image_can_be_published_after_unlinkOs { code: 26, kind: ExecutableFileBusy, message: "Text file busy" }detached_shim_is_discovered_and_replays_from_the_last_observed_offsetExecutableFileBusy/Text file busyruntime_lock::tests::session_inspection_finds_bound_endpoints_by_identityleft: Err(73),right: Ok(())immediately after closeshared_writer_refusals_and_full_peer_limit_preserve_the_live_writerUnexpectedEof,failed to fill whole bufferauth::tests::socket_tests::close_logging::agent_stream_loss_logs_its_safe_close_reason_and_reaches_the_browserElapsed(())at original 10-second boundinitial_attach_requires_explicit_credit_before_replayAssertionError: credit-starved replay blocked sibling controlstream=1,kind=0x13, cursor 32)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 90on compute01 (10 cores), nice 10, one build slot. Command:cargo test --workspace --locked --no-fail-fast -j4. All earlier-source sweeps excluded.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 arefinal-v5-*):Verbatim
scripts/verify fastRust summary and static measurements: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:
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-256086e27921dba3f935b0a7f388b0603afcd0e4ebce9d0dff79c72189bb4c7aeea). 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/targetdeleted; driver and stress exited; process scan found no J115 processes. Local worktree clean; final push reportsEverything up-to-date. Issue left open. No blockers or owner decisions; ready for independent break-it review.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.