Messages in this thread | | | Date | Mon, 13 Jun 2011 12:59:57 -0500 (CDT) | From | Christoph Lameter <> | Subject | Re: [PATCH] slub: fix kernel BUG at mm/slub.c:1950! |
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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?
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