xfs deadlock in stable kernel 3.0.4

[Christoph Hellwig]

On Wed, Sep 14, 2011 at 10:49:20AM +0200, Stefan Priebe - Profihost AG wrote:
> >Sadly it was now crashing with 3.1 rc-6 + patch again. Sorry i was to
> >fast to write you an email.
> 
> So might it be that the problem at least in 3.1 lies in:
> [] ? mark_held_locks+0xc9/0xef
> [] ? _raw_spin_unlock_irqrestore+0x3f/0x47
> 
> and not in XFS?

That's the lockdep code.