gitreins-tier2-judge-poll-loop-suite-iterations
Wrote the solution to ~/solution.md. It is self-contained and directly usable.
Root cause (primary): the tier-2 judge polls with pgrep -f "go test" inside a bash -c step whose own argv contains go test. pgrep -f matches the parent shell (it excludes only its own PID), so the poll can never report DONE → the LLM agent re-issues the same wait step forever. This is DAGGER-0927, third live instance.
Root cause (secondary): no single-run lock + no completion sentinel. grep -c "^ok" is not a valid go test completion signal, so the judge relaunches the suite (fulltest.log → fulltest2.log → fulltest3.log) → suite_iterations: 3.
Cosmetic: printed hash b06b0f84 ≠ verdict dir a522ecab is expected; the verdict dir only appears at the end.
pgrep -f "[g]o test", or a runtime-built pattern.run-suite-once.sh (detached, mkdir lock, writes .log+.exit) + poll-suite.sh (blocks on sentinel, propagates rc, 124 on timeout).poll-watchdog.sh safety net that fires on "same child step + frozen artifact".| Check | Result |
|---|---|
| V1 self-match reproduced | plain pgrep -f "go test" → RUNNING with no target |
| V2 bracket/runtime pattern | DONE with no target, RUNNING with a real target |
| V3 runner | returns in 0.012s, duplicate refused (rc 3), poll blocks then returns rc, timeout → 124 |
| V4 watchdog | STALL_DETECTED on frozen artifact + repeated step (rc 2) |
The doc also includes the read-only triage commands and the §2.5 kill-worthy signature so a healthy 4–20 min Evaluating... is not mistaken for a hang.
# Evidence - Problem class: gitreins-tier2-judge-poll-loop-suite-iterations - Model: openrouter/deepseek/deepseek-v4.1-flash - Solved: 2026-09-18T10:57:22.970Z - Verification: solution produced by pi in sandbox; see signatures.json
{"description": "Measured tick #523 (DAGGER-0946, verdict PASS b06b0f84 / dir a522ecab): `gitreins task complete <ID>` finished after ~36 min with Overall PASS. Root cause of the apparent hang is NOT the judge: the evaluator's tool loop polls suite logs with commands whose OWN argv contains the pattern they search, e.g. `sleep 29; wc -l /tmp/fulltest2.log; pgrep -f \"go test\" >/dev/null && echo RUNNING || echo DONE; tail -2 /tmp/fulltest2.log` \u2014 pgrep -f matches the poll shell itself, so the poll can never report DONE (exact DAGGER-0927 mechanism, third live instance). Separate from a second, benign variant observed in the same round: `sleep 29; tail -3 /tmp/fulltest2.log; grep -c \"^ok\" ...` which terminates but makes the evaluator iterate the full suite 3x (fulltest.log -> fulltest2.log (5225 bytes) -> fulltest3.log). DIAGNOSIS USED: (1) ps -ef | awk -v p=<gitreins python pid> '$3==p' to read the CURRENT child step \u2014 a CHANGING step plus fresh mtimes on /tmp/fulltest*.log means real work, keep waiting; (2) the judge python's CPU time staying at 1s with zero bytes of /proc/<pid>/io movement means it is waiting, not thinking; (3) verdict dir appears under .gitreins/history/<date>/<hash>/ only at the end, and the printed hash differs from the dir name (printed b06b0f84, dir a522ecab). NEVER kill the wrapper on a silent 'Evaluating...' inside the healthy 4-20 min band; the kill-worthy signature is the SAME wait-for-file/pgrep step repeating while the artifact it waits for (a .log/.exit file) stops changing.", "environment": "gitreins 0.12.1 (pipx), tier-2 evaluator shell tool loop, repo <project> (Go, `go test -race -count=1 ./...` ~3-9 min per run)", "language": "python", "model": "openrouter/deepseek/deepseek-v4.1-flash", "problem_class": "gitreins-tier2-judge-poll-loop-suite-iterations", "provider": "openrouter", "solved_at": "2026-09-18T10:57:22.970Z", "version": ""}Wrote the solution to ~/solution.md. It is self-contained and directly usable.
Root cause (primary): the tier-2 judge polls with pgrep -f "go test" inside a bash -c step whose own argv contains go test. pgrep -f matches the parent shell (it excludes only its own PID), so the poll can never report DONE → the LLM agent re-issues the same wait step forever. This is DAGGER-0927, third live instance.
Root cause (secondary): no single-run lock + no completion sentinel. grep -c "^ok" is not a valid go test completion signal, so the judge relaunches the suite (fulltest.log → fulltest2.log → fulltest3.log) → suite_iterations: 3.
Cosmetic: printed hash b06b0f84 ≠ verdict dir a522ecab is expected; the verdict dir only appears at the end.
pgrep -f "[g]o test", or a runtime-built pattern.run-suite-once.sh (detached, mkdir lock, writes .log+.exit) + poll-suite.sh (blocks on sentinel, propagates rc, 124 on timeout).poll-watchdog.sh safety net that fires on "same child step + frozen artifact".| Check | Result |
|---|---|
| V1 self-match reproduced | plain pgrep -f "go test" → RUNNING with no target |
| V2 bracket/runtime pattern | DONE with no target, RUNNING with a real target |
| V3 runner | returns in 0.012s, duplicate refused (rc 3), poll blocks then returns rc, timeout → 124 |
| V4 watchdog | STALL_DETECTED on frozen artifact + repeated step (rc 2) |
The doc also includes the read-only triage commands and the §2.5 kill-worthy signature so a healthy 4–20 min Evaluating... is not mistaken for a hang.
# Evidence - Problem class: gitreins-tier2-judge-poll-loop-suite-iterations - Model: openrouter/deepseek/deepseek-v4.1-flash - Solved: 2026-09-18T10:57:22.970Z - Verification: solution produced by pi in sandbox; see signatures.json
{"description": "Measured tick #523 (DAGGER-0946, verdict PASS b06b0f84 / dir a522ecab): `gitreins task complete <ID>` finished after ~36 min with Overall PASS. Root cause of the apparent hang is NOT the judge: the evaluator's tool loop polls suite logs with commands whose OWN argv contains the pattern they search, e.g. `sleep 29; wc -l /tmp/fulltest2.log; pgrep -f \"go test\" >/dev/null && echo RUNNING || echo DONE; tail -2 /tmp/fulltest2.log` \u2014 pgrep -f matches the poll shell itself, so the poll can never report DONE (exact DAGGER-0927 mechanism, third live instance). Separate from a second, benign variant observed in the same round: `sleep 29; tail -3 /tmp/fulltest2.log; grep -c \"^ok\" ...` which terminates but makes the evaluator iterate the full suite 3x (fulltest.log -> fulltest2.log (5225 bytes) -> fulltest3.log). DIAGNOSIS USED: (1) ps -ef | awk -v p=<gitreins python pid> '$3==p' to read the CURRENT child step \u2014 a CHANGING step plus fresh mtimes on /tmp/fulltest*.log means real work, keep waiting; (2) the judge python's CPU time staying at 1s with zero bytes of /proc/<pid>/io movement means it is waiting, not thinking; (3) verdict dir appears under .gitreins/history/<date>/<hash>/ only at the end, and the printed hash differs from the dir name (printed b06b0f84, dir a522ecab). NEVER kill the wrapper on a silent 'Evaluating...' inside the healthy 4-20 min band; the kill-worthy signature is the SAME wait-for-file/pgrep step repeating while the artifact it waits for (a .log/.exit file) stops changing.", "environment": "gitreins 0.12.1 (pipx), tier-2 evaluator shell tool loop, repo <project> (Go, `go test -race -count=1 ./...` ~3-9 min per run)", "language": "python", "model": "openrouter/deepseek/deepseek-v4.1-flash", "problem_class": "gitreins-tier2-judge-poll-loop-suite-iterations", "provider": "openrouter", "solved_at": "2026-09-18T10:57:22.970Z", "version": ""}