linux-kernel - Re: Bug on barriers for virtio_blk device - end

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Message-ID: <4AD62690.9080408@navynet.it>
Date:	Wed, 14 Oct 2009 21:29:20 +0200
From:	Massimo Cetra <mcetra@...ynet.it>
To:	linux-kernel@...r.kernel.org
Subject: Re: Bug on barriers for virtio_blk device - end_request: I/O error,
 dev vda, sector 0

Massimo Cetra ha scritto:
> Hello all,
>
> i ended up with some thiusands of errors after upgrading to 2.6.31.2 
> like this one:
>
> end_request: I/O error, dev vda, sector 0
> end_request: I/O error, dev vda, sector 0
> end_request: I/O error, dev vda, sector 0
> end_request: I/O error, dev vda, sector 0
>
> I am using ocfs2 on top of drbd on top of LVM in a KVM guest that uses 
> virtio_blk.
>
> The bug is already known, see here:
> https://bugzilla.redhat.com/show_bug.cgi?id=514901
>
> A patch exists and the problem has already been submitted here in the 
> list.
> See here: http://lkml.org/lkml/2009/8/6/153
>
> That fix is not in 2.6.31 nor in 2.6.32-RCX
>
> Could you please consider pulling it and adding this fix for inclusion 
> in 2.6.31.$next and also to mainline?
>
> Thanks.
No one listening here ?
This makes virtio_blk on LVM unusable.

Max

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