Re: 2.6.20.3 - possible recursive locking detected - in XFS

Re: 2.6.20.3 - possible recursive locking detected - in XFS

[Jesper Juhl]

On 26/04/07, David Chinner <dgc@sgi.com> wrote:
> On Wed, Apr 25, 2007 at 11:16:57AM +0200, Jesper Juhl wrote:
> >
> > Hi,
> >
> > For your information :
> >
> > Once in a while I see the message below after I've just created a new XFS filesystem, mount it and then start copying data to it.
>
> .....
>
> > =============================================
> > [ INFO: possible recursive locking detected ]
> > 2.6.20.3generic #1
> > ---------------------------------------------
> > xfs_fsr/6117 is trying to acquire lock:
> >  (&(&ip->i_lock)->mr_lock){----}, at: [<f929422d>] xfs_ilock+0x7d/0xa0 [xfs]
> >
> > but task is already holding lock:
> >  (&(&ip->i_lock)->mr_lock){----}, at: [<f929422d>] xfs_ilock+0x7d/0xa0 [xfs]
>
> Known false positive - XFS doesn't have the annotations needed for
> this yet; we've got a patch that will probably make it's way into 6.5.22 that
> should fix most of these issues.
>
Ok. Thanks for the feedback.

-- 
Jesper Juhl <jesper.juhl@gmail.com>
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Re: 2.6.20.3 - possible recursive locking detected - in XFS

[Eric Sandeen]

Jesper Juhl wrote:
> On 26/04/07, David Chinner <dgc@sgi.com> wrote:

>> Known false positive - XFS doesn't have the annotations needed for
>> this yet; we've got a patch that will probably make it's way into 6.5.22 that
>> should fix most of these issues.

wow... 6.5.22.... do we really have to wait that long? :)

-Eric