Re: next-20081119: general protection fault: get_next_timer_interrupt()

malahal
2008-11-25T00:09:17Z

Thomas Gleixner [tglx@linutronix.de] wrote:
> On Mon, 24 Nov 2008, Mike Anderson wrote:
> > Thomas Gleixner <tglx@linutronix.de> wrote:
> > > Yeah, block could it be as well. Jens, Mike ?
> >
> > I added a comment to bug 12020 on Thursday about a few other systems that
> > where seeing the signature shown in bug 12020. It appeared from debug that
> > there where a few paths that where adding timers for requests that where
> > not expected.
> >
> > http://bugzilla.kernel.org/show_bug.cgi?id=12020
> >
> > It would be good to know if the debug patch below effects your problem as while.
> >
> > If it does we need to investigated a solution to resolve not adding a
> > timer for these requests.

The block timer code calls del_timer(), should it call del_timer_sync()?
It is possible although unlikely that you are hitting del_timer_sync vs
del_timer problem in the block timeout code. Can only be seen on SMP
systems though!

--Malahal.