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Date:      Wed, 18 Feb 2026 19:32:10 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 288345] poudriere run, hanging umounts, system fails to reboot due to hanging processes
Message-ID:  <bug-288345-227-eCr6z5h9vL@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-288345-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=288345

--- Comment #41 from Craig Leres <leres@freebsd.org> ---
(In reply to Craig Leres from comment #40)
The GENERIC-DEBUG finally produced a panic/crashdump. About 15 minutes into the
scheduled poudriere bulk build this morning it panic'ed. The ipmi console
showed:

    panic: not reclaimed nullfs vnode

and a kgdb prompt. It clearly had saved the crash dump. Naively I entered
"continue" and was relegated to waiting for it to save the crash dump again...
Then I entered "reset" and the system rebooted, and saved the crash dump which
is now here:

    https://ee.lbl.gov/.bsd-C6sfr/

I think it's interesting that D state problems most commonly occur during the
first ~30 minutes of the build. I know the package build rate is high at first
as many quick-to-build ports are built. I'm guessing a test script that
repeatedly creates and deletes zfs partitions in the way that poudriere does
would trigger this bug.

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