ktrace: Use STAILQ_EMPTY_ATOMIC when checking for records in userret()
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Authored by markj on Fri, Mar 21, 2:09 PM.

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Summary

As in commit 36631977d8c9, this check is unlocked and may trigger
spurious assertion failures. Use STAILQ_EMPTY_ATOMIC() here as well.
Fix nearby whitespace.

Reported by: syzkaller
Fixes: 34740937f7a4 ("queue: New debug macros for STAILQ")

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rG FreeBSD src repository

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Buildable 63027
Build 59911: arc lint + arc unit

Event Timeline

markj created this revision.Fri, Mar 21, 2:09 PM

Herald added a subscriber: imp. · View Herald TranscriptFri, Mar 21, 2:09 PM

markj requested review of this revision.Fri, Mar 21, 2:09 PM

Harbormaster completed remote builds in B63027: Diff 152499.Fri, Mar 21, 2:09 PM

olce accepted this revision.Fri, Mar 21, 5:36 PM

This revision is now accepted and ready to land.Fri, Mar 21, 5:36 PM

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sys/

ktrace.h

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Diff 152499

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ktrace: Use STAILQ_EMPTY_ATOMIC when checking for records in userret()AcceptedPublicActions