From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jose Manuel dos Santos Calhariz <jose.spam@netvisao.pt>
Subject: Re: linux-image-2.6.32-5-686: kernel BUG at ...
 build/source_i386_none/drivers/md/raid5.c:2764!
Date: Sun, 24 Jun 2012 18:02:34 +0100
Message-ID: <20120624170234.GA13154@calhariz.com>
References: <20120622121953.GA25149@calhariz.com>
 <20120624182146.7d63fbbb@notabene.brown>
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To: NeilBrown <neilb@suse.de>
Cc: jose.spam@netvisao.pt, linux-raid@vger.kernel.org
List-Id: linux-raid.ids


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On Sun, Jun 24, 2012 at 06:21:46PM +1000, NeilBrown wrote:
> On Fri, 22 Jun 2012 13:19:53 +0100 Jose Manuel dos Santos Calhariz
> <jose.spam@netvisao.pt> wrote:
>=20
> >=20
> > In another day during the periodic mdadm RAID check:=20
> >  - the linux kernel gave a kernel BUG,=20
> >  - tried to kick out a failed disk and=20
> >  - stopped accepting I/O to the affected raid. =20
> >=20
> > The affected programs were in state D.  The only way to recover was to
> > do a reboot.  After reboot the problematic disk was replaced.
> >=20
> > I reported the bug to Debian and is there all the information about it:
> >=20
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D675969
> >=20
> > I was asked to report the BUG here in case someone knows what happened.
> >=20
> > Here is a summary of the more relevant information:
> >=20
> > This machine have 2 x RAID6 with 6 disks each, for a total of 12 disks.=
=20
> >=20
> > I have 5 systems with a similar setup and only one failed, maybe
> > because of the failing disk.  I will use one of the systems to try to
> > reproduce the bug, before triyng a new kernel.
> >=20
> >=20
> > The proprietary module is the openafs filesystem v1.6.1 backported
> > from Debian testing.
> >=20
> > The kernel bug is:
> >=20
> >=20
> > build/source_i386_none/drivers/md/raid5.c:2764!

>=20
> This bug was fixed in 2.6.32.49 and 3.2
>=20
> http://git.kernel.org/?p=3Dlinux/kernel/git/stable/linux-stable.git;a=3Dc=
ommitdiff;h=3D61d433c479a6ccfed6a7e73e6111ca8fa0348c63
>=20
> http://git.kernel.org/?p=3Dlinux/kernel/git/torvalds/linux.git;a=3Dcommit=
diff;h=3D9a3f530f39f4490eaa18b02719fb74ce5f4d2d86
>=20
> NeilBrown

The failing kernel had that fix all ready.  The machine was running
the kernel Debian 2.6.32-41squeeze2.  Looking into the change log,
this kernel have all the fixes until 2.6.32.51 plus other fixes.

     Jose Calhariz

--=20
--

Ambi=E7=E3o: um supremo desejo de ser vilipendiado por seus inimigos enquan=
to voc=EA est=E1 vivo e ser ridicularizado pelos amigos quando estiver morto

--Ambrose Bierce

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