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    SubjectRe: [PATCH] slub: fix kernel BUG at mm/slub.c:1950!
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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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