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SubjectRe: [PATCH] memcgroup: check and initialize page->cgroup in memmap_init_zone
KAMEZAWA Hiroyuki wrote::
> On Fri, 18 Apr 2008 12:32:56 +0900
> KAMEZAWA Hiroyuki <> wrote:
>>> Or perhaps that page was used and then later freed before we got to
>>> memmap_init_zone() and was freed with a non-zero ->page_cgroup. Which is
>>> unlikely given that page.page_cgroup was only just added and is only
>> Hmm, I'll try his .config and see what happens.
> I reproduced the hang with his config and confirmed his fix works well.
> But I can't find why...I'll dig a bit more.

If i use CONFIG_SPARSEMEM instead of CONFIG_DISCONTIGMEM, the kernel
boots successfully.

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