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Date:      Sat, 21 Mar 2026 12:51:17 +0100
From:      Alexander Leidinger <Alexander@Leidinger.net>
To:        A FreeBSD User <freebsd@walstatt-de.de>
Cc:        FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   Re: CURRENT (after commit b1f72dd2a9a5e69a310b9e76b55f16cff433b8da): silently crashing when make -jXX buildworld
Message-ID:  <248e3954bbd4338f810636fdeb0c9b31@Leidinger.net>
In-Reply-To: <20260321093106.09adb26d@thor.sb211.local>

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[-- Attachment #1 --]
Am 2026-03-21 09:30, schrieb A FreeBSD User:
> Hello,
> 
> after upgrading sources and recompiling averything from scratch after 
> make cleanworld, host is
> silently rebooting (not trace of a crash or anything suitable to 
> present).
> 
> The box is booting as usual, starting jails.
> When issuing "make -j16 buildworld buildkernel", the box shows some 
> text on the console and
> then - byebye. Rebooting, no crashdump.
> 
> The same issue occurs when booting in single user mode.
> 
> 
> Working kernel is
> FreeBSD 16.0-CURRENT #9 main-n284575-14b9955e57cc: Fri Mar 20 05:39:16 
> CET 2026 amd64
> 
> anything later/beyond seems to fail on all recent CURRENT running 
> boxes.
> 
> Platform is AMD AM5 based toy CPUs.

I had 2 crashes during a day with a git state from 2026-03-19-022634. 
I've seen the stack trace in the ZFS ARC code and fstat messages about 
"znode_t size mismatch" in fstat in the crash analysis. Normal use case 
of the system, no buildworld running during this time. Since then there 
was an update of the ZFS code and I updated to a git state from 
2026-03-20-131226. I'm testing if this fixes the issue.

Bye,
Alexander.

-- 
http://www.Leidinger.net Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF
http://www.FreeBSD.org    netchild@FreeBSD.org  : PGP 0x8F31830F9F2772BF

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