thread_single(P_TOTAL_STOP): set single-threading thread runnable
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Authored by kib on Oct 20 2025, 8:32 AM.

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markj

Summary

as last resort in ast_suspend(), since we might be the last thread going
in suspended state and the single-threading thread already off the cpu.

Reported by:    pho

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rG FreeBSD src repository

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kib created this revision.Oct 20 2025, 8:32 AM

Herald added subscribers: olce, imp. · View Herald TranscriptOct 20 2025, 8:32 AM

kib requested review of this revision.Oct 20 2025, 8:32 AM

markj added inline comments.Oct 20 2025, 6:05 PM

sys/kern/kern_thread.c
535
538
549	For other stop types, thread_suspend_check() is responsible for waking up the initiator with thread_unsuspend_one(). Why do we not handle the ALLSTOP case in thread_suspend_check() too?

Too naive, unfortunately.

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sys/

kern/

kern_thread.c

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thread_single(P_TOTAL_STOP): set single-threading thread runnableChanges PlannedPublicActions