2.1 KiB
2.1 KiB
| id | status | status_updated | status_note | component | severity | timestamp | last_seen | occurrences | files | tags | related | |||||
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| bug-1944 | open | 2026-10-10 | newly logged | scheduler | wrong-result | 2026-10-10T08:14:56Z | 2026-10-10T08:14:56Z | 1 |
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bug-1944: xce_scheduler gives a job moved to another queue the queue's priority, so it jumps ahead
Description
Observed: (source reading, .kiro/reviews/project-gap-review-2026-10-10.md (P0); to be confirmed by a failing test before the fix)
New jobs get priority 0 (schedobj.c:214, core_events.c:353), but on a queue change the job's priority becomes the queue's priority (core_events.c:1360, schedobj.c:684); the picker sorts by job priority within a queue (plugins/builtin_fcfs.c:213).
Expected: Moving a job does not change its job priority.
Impact: Wrong ordering: moved jobs overtake jobs submitted earlier to the target queue.
Found by: review: .kiro/reviews/project-gap-review-2026-10-10.md (P0)
Environment
- OS: no /etc/os-release; Docker container; NixOS kernel; kernel Linux 6.18.33 x86_64
- libc: glibc 2.42-47 (interpreter /nix/store/wb6rhpznjfczwlwx23zmdrrw74bayxw4-glibc-2.42-47/lib/ld-linux-x86-64.so.2)
- Toolchain: gcc (GCC) 15.2.0, meson 1.9.1
- Build: asan (xce.build)
- Code: scheduler-framework @ 94472ee3-dirty
- Deployment: any (found by source reading; the failing test that confirms it is named in Verification)
Reproduction
- Two jobs pending in queue B; move a third job from A to B (queue priority > 0).
- The moved job is picked first.
- Frequency: deterministic (by code reading; confirmed by the RED test of the fix)
- Evidence: the code sites quoted in Description; no logs kept.
Root cause
TODO: required for fixed/partial
Fix
TODO: required for fixed/partial
Verification
- Test: TODO: name + file; RED before the fix, GREEN after
- Suites: TODO: suite results and build profile
- Live: TODO: soak/deploy run, or n/a and why
References
- Related: none