Messages in this thread | | | Date | Thu, 06 Sep 2012 11:05:11 +0800 | From | Michael Wang <> | Subject | Re: [PATCH] slab: fix the DEADLOCK issue on l3 alien lock |
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On 09/05/2012 09:55 PM, Christoph Lameter wrote: > On Wed, 5 Sep 2012, Michael Wang wrote: > >> Since the cachep and cachep->slabp_cache's l3 alien are in the same lock class, >> fake report generated. > > Ahh... That is a key insight into why this occurs. > >> This should not happen since we already have init_lock_keys() which will >> reassign the lock class for both l3 list and l3 alien. > > Right. I was wondering why we still get intermitted reports on this. > >> This patch will invoke init_lock_keys() after we done enable_cpucache() >> instead of before to avoid the fake DEADLOCK report. > > Acked-by: Christoph Lameter <cl@linux.com>
Thanks for your review.
And add Paul to the cc list(my skills on mailing is really poor...).
Regards, Michael Wang
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