Re: 2.6.14-rc1 BUG: spinlock wrong owner on CPU#0

[Keith Owens]

On Tue, 13 Sep 2005 11:17:59 +0200, 
Ingo Molnar <mingo@xxxxxxx> wrote:
>
>* Keith Owens <kaos@xxxxxxx> wrote:
>
>> Booting 2.6.14-rc1 on ia64, I sometimes get
>> 
>> BUG: spinlock wrong owner on CPU#0, swapper/1
>>  lock: e000003003014940, .magic: dead4ead, .owner: pdflush/75, .owner_cpu: 0
>
>hm, ia64 uses __ARCH_WANT_UNLOCKED_CTXSW and thus it releases the 
>runqueue lock early - so a certain assumption in the new, improved 
>spinlock debugging code does not apply. Does the patch below help?

Works for me, but it needs to be a -p1 patch, not -p0.

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