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DateWed, 31 May 2006 23:33:40 +0200
FromIngo Molnar <>
SubjectRe: 2.6.17-rc5-mm1
* Martin J. Bligh <mbligh@mbligh.org> wrote:

> >AFAICS this isnt the lock validator but the normal mutex debugging code 
> >(CONFIG_DEBUG_MUTEXES). The log does not indicate that lockdep was 
> >enabled.
> 
> Buggered if I know how that got turned on. I thought we turned it off 
> by default now? That's what screwed up all the perf results before.
> 
> http://test.kernel.org/abat/33803/build/dotconfig
> That's the build config it ran with.
> 
> CONFIG_DEBUG_MUTEXES=y

still ... it shouldnt have crashed on us. I did change it in -mm1 so 
i'll take a look tomorrow.

> Grrr. Humpf. I can't see the option being turned on for lockdep ...
> what was the config option, and is it enabled by default?

these are the lock validator options in question:

 # CONFIG_PROVE_SPIN_LOCKING is not set
 # CONFIG_PROVE_RW_LOCKING is not set
 # CONFIG_PROVE_MUTEX_LOCKING is not set
 # CONFIG_PROVE_RWSEM_LOCKING is not set

and they are off by default.

	Ingo
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