docs(buglog): log P0 defects from the 2026-10-10 review (bug-1936..bug-1952)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

2026-10-10 08:15:28 +00:00

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bug-1942: xce_controller sends job control of a multi-host job only to its first host

Description

Observed: (source reading, .kiro/reviews/project-gap-review-2026-10-10.md (P0); to be confirmed by a failing test before the fix) Job control is routed to allocs[0]->host only (src/controller/job.c:2126-2131).

Expected: Signals reach every host of the job (or the job's launcher is documented to fan them out and does so). Impact: Suspending or killing a multi-host job can leave its tasks on other hosts running. 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

Run a 2-host job (e.g. /xce-test-multihost), stop it.
Tasks on the second host keep running.

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