From: "Dr. David Alan Gilbert" <dave@treblig.org>
To: Marcin Gibula <m.gibula@gmail.com>
Cc: linux-kernel@vger.kernel.org, aarcange@redhat.com
Subject: Re: 3.16.1 - general protection fault
Date: Tue, 30 Sep 2014 15:50:55 +0100 [thread overview]
Message-ID: <20140930145055.GA24978@gallifrey> (raw)
In-Reply-To: <20140924201827.GA30643@gallifrey>
* Dr. David Alan Gilbert (dave@treblig.org) wrote:
> * Marcin Gibula (m.gibula@gmail.com) wrote:
>
> Hi Marcin,
>
> > Hi,
> >
> > I've been playing with 3.16 kernel on my test machine as a KVM
> > hypervisor and encountered the following crash twice (almost identical
> > backtraces).
> >
> > Sep 24 09:39:31 dev4 kernel: general protection fault: 0000 [#1] SMP
>
> <snip>
>
> > This machine is serving as NFS client and KVM hypervisor. I'm still
> > not sure how to trigger it reliably (right now, I just have to run
> > ubuntu instalation in VM guest multiple times and sometimes it
> > triggers).
> >
> > Attaching .config, slub.s and disassembled __kmalloc_node_track_caller function.
>
> Yes, I hit something similar:
>
> http://www.spinics.net/lists/linux-nfs/msg46047.html 'nfs: disallow duplicate pages in pgio page vectors'
> http://www.spinics.net/lists/linux-nfs/msg46048.html 'nfs: can_coalesce_requests must enforce contiguity'
>
> seem to stop the GPF's/crashes, although there's still something else
> going on with a corruption I'm seeing every so often.
And that 'something else' seems to be fixed by:
http://marc.info/?l=linux-nfs&m=141208464631105&w=2
Enjoy,
Dave
--
-----Open up your eyes, open up your mind, open up your code -------
/ Dr. David Alan Gilbert | Running GNU/Linux | Happy \
\ gro.gilbert @ treblig.org | | In Hex /
\ _________________________|_____ http://www.treblig.org |_______/
next prev parent reply other threads:[~2014-09-30 14:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-24 16:44 3.16.1 - general protection fault Marcin Gibula
2014-09-24 20:18 ` Dr. David Alan Gilbert
2014-09-30 14:50 ` Dr. David Alan Gilbert [this message]
2014-10-01 8:09 ` Marcin Gibula
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