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Date:      Tue, 29 Oct 2013 21:59:30 -0700
From:      Adrian Chadd <adrian@freebsd.org>
To:        Shawn Wallbridge <shawn@wallbridge.net>
Cc:        FreeBSD Stable Mailing List <freebsd-stable@freebsd.org>
Subject:   Re: 9.2-RELEASE Kernel panic, mbuf underflow
Message-ID:  <CAJ-Vmoke0goQxArD5BPvo1PK4hAd3euVOME4pBCD%2Bdouqo6nww@mail.gmail.com>
In-Reply-To: <E5E8DE91-F977-421E-95AD-EAD1A087BDEA@wallbridge.net>
References:  <E5E8DE91-F977-421E-95AD-EAD1A087BDEA@wallbridge.net>

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Hi,

How about adding

options INVARIANTS

.. to the kernel config, compile and reboot?


-adrian



On 29 October 2013 21:37, Shawn Wallbridge <shawn@wallbridge.net> wrote:
> I have a file server that keeps panic=92ing with a mbuf cluster in the 17=
 Quadrillion range (2^64 - 2). I am pretty sure it=92s a buffer underflow.
>
> I have opened a PR, but I haven=92t had any movement on it. This happened=
 while I was running 9.1-RELEASE as well.
>
> Here is the PR..
>
> http://www.freebsd.org/cgi/query-pr.cgi?pr=3D183424
>
> And I have uploaded the crash dumps here..
>
> http://www.wallbridge.net/crash/
>
> If anyone has any ideas, I would be grateful as this is a production box =
and it=92s really impacting us.
>
> shawn
>
>
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