Johannes Weiner <han...@cmpxchg.org> writes: > Hi Kevin, > > On Fri, Aug 16, 2013 at 10:17:01AM -0700, Kevin Hilman wrote: >> Johannes Weiner <han...@cmpxchg.org> writes: >> > On Wed, Aug 07, 2013 at 11:37:43AM -0400, Johannes Weiner wrote: >> > Subject: [patch] mm: page_alloc: use vmstats for fair zone allocation >> > batching >> > >> > Avoid dirtying the same cache line with every single page allocation >> > by making the fair per-zone allocation batch a vmstat item, which will >> > turn it into batched percpu counters on SMP. >> > >> > Signed-off-by: Johannes Weiner <han...@cmpxchg.org> >> >> I bisected several boot failures on various ARM platform in >> next-20130816 down to this patch (commit 67131f9837 in linux-next.) >> >> Simply reverting it got things booting again on top of -next. Example >> boot crash below. > > Thanks for the bisect and report!
You're welcome. Thanks for the quick fix! > I deref the percpu pointers before initializing them properly. It > didn't trigger on x86 because the percpu offset added to the pointer > is big enough so that it does not fall into PFN 0, but it probably > ended up corrupting something... > > Could you try this patch on top of linux-next instead of the revert? Yup, that change fixes it. Tested-by: Kevin Hilman <khil...@linaro.org> Kevin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
