Re: Kernel panic with PREEMPT_RT_FULL and UIO driver

[Thomas Gleixner <tglx@xxxxxxxxxxxxx>]

On Thu, 22 Dec 2011, Uwe Kleine-König wrote:

> On Wed, Dec 21, 2011 at 11:48:36AM +0100, Lukas Erlinghagen wrote:
> > ------------[ cut here ]------------
> > kernel BUG at kernel/rtmutex.c:724!
> That's a recursive spinlock. Try enabling CONFIG_PROVE_LOCKING.

News at eleven. I already explained Lukas, _why_ this happens. So what
the heck will CONFIG_PROVE_LOCKING provide as extra value?

We all appreciate your helpfulness, but your signal to noise ratio is
approaching zero.

Thanks,

	tglx