From: Milan Broz <mbroz@redhat.com>
To: device-mapper development <dm-devel@redhat.com>
Subject: Re: kernel NULL pointer after snapshot remove on 2.6.17
Date: Tue, 03 Oct 2006 15:34:58 +0200 [thread overview]
Message-ID: <45226702.5050003@redhat.com> (raw)
In-Reply-To: <1159881164.19882.21.camel@localhost.localdomain>
This is known bug, patch already in -mm tree.
For patch see http://bugzilla.kernel.org/show_bug.cgi?id=7040
Milan
--
mbroz@redhat.com
Brice Figureau wrote:
> Hi,
>
> I just found the following oops after lvremove'ing a snapshot which was
> used to backup a mysql database.
>
> This oops happened because I mistakenly copied a part of the snapshot
> back to the original volume. This apparently exhausted the capacity of
> the snapshot and triggered the following oops.
>
> lvremove after the oops was stuck in D+ state.
> Any lv* command was also stuck after that.
> After that the server was stuck while rebooting with the error message:
> "snapshot is marked invalid", then nothing else.
>
> I cured the problem by booting a rescue CD, and hand-lvremoving the
> offending snapshot.
>
> All this is on an amd64 debian etch with custom compiled kernel version
> 2.6.17, and lvm2 version 2.02.06-2, and libdevmapper is at 1.02.08-1.
>
next prev parent reply other threads:[~2006-10-03 13:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-03 13:12 kernel NULL pointer after snapshot remove on 2.6.17 Brice Figureau
2006-10-03 13:34 ` Milan Broz [this message]
2006-10-04 7:58 ` Brice Figureau
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