ktrace: Use STAILQ_EMPTY_ATOMIC when checking for records in userret()
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Authored by markj on Mar 21 2025, 2:09 PM.

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rG51489b9ced27: ktrace: Use STAILQ_EMPTY_ATOMIC when checking for records in userret()
rGe9a846468acf: ktrace: Use STAILQ_EMPTY_ATOMIC when checking for records in userret()

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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Event Timeline

markj created this revision.Mar 21 2025, 2:09 PM

Herald added a subscriber: imp. · View Herald TranscriptMar 21 2025, 2:09 PM

markj requested review of this revision.Mar 21 2025, 2:09 PM

Harbormaster completed remote builds in B63027: Diff 152499.Mar 21 2025, 2:09 PM

olce accepted this revision.Mar 21 2025, 5:36 PM

This revision is now accepted and ready to land.Mar 21 2025, 5:36 PM

Closed by commit rGe9a846468acf: ktrace: Use STAILQ_EMPTY_ATOMIC when checking for records in userret() (authored by markj). · Explain WhyMar 23 2025, 12:00 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rGe9a846468acf: ktrace: Use STAILQ_EMPTY_ATOMIC when checking for records in userret().

markj added a commit: rG51489b9ced27: ktrace: Use STAILQ_EMPTY_ATOMIC when checking for records in userret().Sun, Apr 6, 10:51 PM

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sys/

ktrace.h

5 lines

Diff 152554

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