scheduler: wait for process groups after actions exit#14868
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After a process-group leader exits, check whether its group still contains processes. If so, send SIGTERM, poll for the group to disappear, escalate to SIGKILL after the existing grace period, and abort if it still remains. Extend the cram subprocess test with a SIGTERM-ignoring background job. Signed-off-by: Rudi Grinberg <me@rgrinberg.com>
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After a process-group leader exits, check whether its group still contains processes. If so, send SIGTERM, poll for the group to disappear, escalate to SIGKILL after the existing grace period, and abort if it still remains.
Extend the cram subprocess test with a SIGTERM-ignoring background job.