Messages in this thread |  | | | Subject | Re: [PATCH] slub: fix kernel BUG at mm/slub.c:1950! | | From | Pekka Enberg <> | | Date | Mon, 13 Jun 2011 21:34:08 +0300 |
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On Mon, 2011-06-13 at 12:59 -0500, Christoph Lameter wrote: > On Sun, 12 Jun 2011, Hugh Dickins wrote: > > > 3.0-rc won't boot with SLUB on my PowerPC G5: kernel BUG at mm/slub.c:1950! > > Bisected to 1759415e630e "slub: Remove CONFIG_CMPXCHG_LOCAL ifdeffery". > > > > After giving myself a medal for finding the BUG on line 1950 of mm/slub.c > > (it's actually the > > VM_BUG_ON((unsigned long)(&pcp1) % (2 * sizeof(pcp1))); > > on line 268 of the morass that is include/linux/percpu.h) > > I tried the following alignment patch and found it to work. > > Hmmm.. The allocpercpu in alloc_kmem_cache_cpus should take care of the > alignment. Uhh.. I see that a patch that removes the #ifdef CMPXCHG_LOCAL > was not applied? Pekka?
This patch?
http://git.kernel.org/?p=linux/kernel/git/penberg/slab-2.6.git;a=commitdiff;h=d4d84fef6d0366b585b7de13527a0faeca84d9ce
It's queued and will be sent to Linus soon.
Pekka
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