Differential D59367

tools/regression/pmc: fuzz the group syscalls
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Authored by afscoelho_gmail.com on Sep 3 2026, 9:33 PM.

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Reviewers

anascime_amd.com
ojanerif_amd.com
davichazbh_gmail.com

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Summary

Add a fuzz test for the group syscalls. It drives PMCGROUPCREATE,
PMCGROUPADD, PMCGROUPCOMMIT, and PMCGROUPREAD with random and
out-of-range arguments, in random order, including operations on a
group that does not exist and on one that is already committed.

The kernel must reject every invalid call with an errno and must not
panic. The test takes an iteration count; check-root runs 20000.

Sponsored by: AMD

Signed-off-by: Andre Silva <andasilv@amd.com>

Diff Detail

Repository

rG FreeBSD src repository

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Unit

Tests Skipped

Build Status

Buildable 78183
Build 75066: arc lint + arc unit

Event Timeline

afscoelho_gmail.com created this revision.Sep 3 2026, 9:33 PM

afscoelho_gmail.com held this revision as a draft.

Herald added a subscriber: imp. · View Herald TranscriptSep 3 2026, 9:33 PM

Harbormaster completed remote builds in B76461: Diff 185764.Sep 3 2026, 9:33 PM

afscoelho_gmail.com added a parent revision: D59366: tools/regression/pmc: test multiplex drain and rotation.Sep 3 2026, 9:34 PM

afscoelho_gmail.com added a child revision: D59368: tools/regression/pmc: test pmcstat grouping end to end.

afscoelho_gmail.com published this revision for review.Sep 8 2026, 12:36 PM

afscoelho_gmail.com added a reviewer: pmc.Sep 8 2026, 3:34 PM

afscoelho_gmail.com edited the summary of this revision. (Show Details)

afscoelho_gmail.com added reviewers: anascime_amd.com, ojanerif_amd.com, davichazbh_gmail.com.Sep 10 2026, 12:45 PM

Rebase onto main after D58256 landed.

Harbormaster completed remote builds in B77486: Diff 188110.Tue, Sep 29, 7:38 PM

Rebase only. No change.

Harbormaster completed remote builds in B77553: Diff 188258.Wed, Sep 30, 9:08 PM

Rebase on main (D60141 and D60185 are committed). No change.

Harbormaster completed remote builds in B77647: Diff 188473.Fri, Oct 2, 6:39 PM

Rebase only. No code change.

Harbormaster completed remote builds in B78183: Diff 189831.Wed, Oct 14, 12:43 AM

Revision Contents
Changeset List

Path

Size

tools/

regression/

pmc/

7 lines

pmc_group_fuzz.c

259 lines

Diff 189831

tools/regression/pmc/Makefile

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tools/regression/pmc/pmc_group_fuzz.c

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