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fix(worker): deliver the job-control signal the user asked for (bug-1954)

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worker_signal_callback() sent SIGTERM for a KILL request without force and
SIGSTOP for any TSTP request. job_signal_to_deliver() (new job_signal.c) now
delivers the requested signal; only a forced terminate escalates to SIGKILL.
The apiserver's default signal for a plain stop becomes SIGSTOP (it was
TSTP and relied on the worker's substitution), so a plain stop still
suspends jobs that ignore SIGTSTP.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Rongsong Shen 2026-10-10 09:07:38 +00:00
parent e00526f9f5
commit 148557a5d5
Signed by untrusted user: rshen
GPG key ID: 80533536B0EB651C
9 changed files with 99 additions and 11 deletions
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4
src/frontend/apiserver/backend/convert_pure.go
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@ -284,7 +284,9 @@ func jobCtrlParams(action int, content string) (jobCtrlArgs, error) {
func defaultActionSignal(action int) int {
switch action {
case models.JOB_STOP:
return models.JobSignalMapTable["TSTP"] // 20
// bug-1954: the worker delivers the requested signal, so a plain
// stop asks for the uncatchable SIGSTOP
return models.JobSignalMapTable["STOP"] // 19
case models.JOB_RESUME:
return models.JobSignalMapTable["CONT"] // 18
}