On 2008.04.01 13:51:18 +0200, Johannes Berg wrote:
quoted text
> 
> On Mon, 2008-03-31 at 21:05 +0200, Björn Steinbrink wrote:
> > On 2008.03.30 20:42:59 +0200, Björn Steinbrink wrote:
> > > I can't reproduce the bug on my UP box and currently can't afford
> > > crashing my SMP box (all the oopses seem to come from SMP kernels, so I
> > > guess it needs SMP to crash), so while this doesn't show any new
> > > problems, I can't tell whether it actually fixes anything. Testers
> > > welcome!
> > 
> > Hm, crap, can't reproduce on my x86_64 SMP box either. Tried with
> > various preemption models as well as rcu classic and preempt. Johannes,
> > is there anything "special" in your configuration?
> 
> slab debugging turned on by default? without it, you'll most likely
> never notice.

I tried with slab+debugging, slub+debugging (SLUB_DEBUG_ON was set),
various preemption models, UP and SMP. No luck. I also wrote a test
program like yours to eliminate any effects caused by different X.org
versions, but it just doesn't want to crash :-/

Björn
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