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docs(buglog): bug-1923 fixed (16616d96), synced to Gitea #348

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Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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Rongsong Shen 2026-10-08 08:11:37 +00:00
parent 16616d9688
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@ -158,7 +158,7 @@
- **(2026-09-29) Standalone ASAN `xce_scheduler --sim` exits 1 from exit-time LeakSanitizer reports (snapshot decode), not from a replay failure** -- run live `--sim-verify` replays with `ASAN_OPTIONS=detect_leaks=0` (as run-ha-soak.sh's replay gate does) and count `MISMATCH` lines. The HA soak (`run-ha-soak.sh`) must run inside `nix develop ./src` (deploy needs openssl) and needs `XCE_HA_BIN`/`XCE_HA_XT` pointing at a build dir that has controller+harness+worker+scheduler.
- **(2026-09-29, bug-1883) Scheduler ctx vectors filled by prepare hooks are append-only (`xvec_idval_store` never dedups), so any pass that recomputes a want must reset that vector first.** A COMPOUND/ALTER job's primaries share one ctx; the job-level prepare pass reset only `.shared`, leaving the previous primary's per-host want in `.host`. Test time-sensitive replay fields with an epoch-scale timestamp plus a sub-second part: a fixture at `begin_round = 2000` ns cannot tell a correct `from` from 0 or from sub-second drift.
- **(2026-10-08, scheduler-sim-decision-trace 1.1, bug-1923) Shared (cluster-wide) resource values put in a sim recording's SnapshotEntry never reach `xce_scheduler --sim`.** `snapshot_load.c` skips resvals whose host decodes as `""` (not NULL), and `snapshot.c` iterates `sharedInst.count` (filled-slot count, not max index). Until fixed, test fixtures that need a shared value (e.g. a license pool) must send it as a RESVALS_FULL replay event.
- **(2026-10-08, scheduler-sim-decision-trace 1.1, bug-1923) Shared (cluster-wide) resource values put in a sim recording's SnapshotEntry never reach `xce_scheduler --sim`.** `snapshot_load.c` skips resvals whose host decodes as `""` (not NULL), and `snapshot.c` iterates `sharedInst.count` (filled-slot count, not max index). FIXED in 16616d96 (load accepts an empty host; save loops bound by `.caps`). Replays written before the fix still lack those values. Lesson: sparse resval zarrays must be iterated to `.caps`, never `.count`.
- **(2026-10-08) `xce-build.sh`'s default ASAN build dir is `src/xce.build` relative to the repo root** (the script runs from `src/`); raw meson commands from the repo root need `nix develop ./src --command meson test -C src/xce.build ...`.
## Do-Not-Repeat