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SubjectRe: xfs_file_ioctl / xfs_freeze: BUG: warning at kernel/mutex-debug.c:80/debug_mutex_unlock()
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:

I guess it got lost?


>> 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 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.

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