From: Eric Sandeen <sandeen@sandeen.net>
To: linux-kernel Mailing List <linux-kernel@vger.kernel.org>,
xfs@oss.sgi.com
Subject: Re: xfs_file_ioctl / xfs_freeze: BUG: warning at kernel/mutex-debug.c:80/debug_mutex_unlock()
Date: Mon, 08 Jan 2007 10:40:54 -0600 [thread overview]
Message-ID: <45A27416.8030600@sandeen.net> (raw)
In-Reply-To: <20070108110323.GA3803@m.safari.iki.fi>
Sami Farin wrote:
> On Mon, Jan 08, 2007 at 08:37:34 +1100, David Chinner wrote:
> ...
>>> fstab was there just fine after -u.
>> Oh, that still hasn't been fixed?
>
> Looked like it =)
Hm, it was proposed upstream a while ago:
http://lkml.org/lkml/2006/9/27/137
I guess it got lost?
-Eric
>> Generic bug, not XFS - the global
>> semaphore->mutex cleanup converted the bd_mount_sem to a mutex, and
>> mutexes complain loudly when a the process unlocking the mutex is
>> not the process that locked it.
>>
>> Basically, the generic code is broken - the bd_mount_mutex needs to
>> be reverted back to a semaphore because it is locked and unlocked
>> by different processes. The following patch does this....
>>
>> BTW, Sami, can you cc xfs@oss.sgi.com on XFS bug reports in future;
>> you'll get more XFS savvy eyes there.....
>
> Forgot to.
>
> Thanks for patch. It fixed the issue, no more warnings.
>
> BTW. the fix is not in 2.6.git, either.
>
next prev parent reply other threads:[~2007-01-08 16:40 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-04 0:14 xfs_file_ioctl / xfs_freeze: BUG: warning at kernel/mutex-debug.c:80/debug_mutex_unlock() Sami Farin
2007-01-07 21:37 ` David Chinner
2007-01-08 11:03 ` Sami Farin
2007-01-08 16:40 ` Eric Sandeen [this message]
2007-01-08 23:47 ` bd_mount_mutex -> bd_mount_sem (was Re: xfs_file_ioctl / xfs_freeze: BUG: warning at kernel/mutex-debug.c:80/debug_mutex_unlock()) David Chinner
2007-01-09 0:19 ` Andrew Morton
2007-01-09 3:12 ` Eric Sandeen
2007-01-09 3:18 ` Andrew Morton
2007-01-09 3:38 ` Eric Sandeen
2007-01-09 3:51 ` Andrew Morton
2007-01-09 4:17 ` Nathan Scott
2007-01-09 4:49 ` David Chinner
2007-01-09 6:02 ` [**BULK SPAM**] " Nathan Scott
2007-01-09 10:04 ` Christoph Hellwig
2007-01-10 1:34 ` David Chinner
2007-01-09 10:02 ` Christoph Hellwig
2007-01-08 23:56 ` xfs_file_ioctl / xfs_freeze: BUG: warning at kernel/mutex-debug.c:80/debug_mutex_unlock() Andrew Morton
2007-01-09 6:41 ` Ingo Molnar
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