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    SubjectRe: [PATCH 00/31] numa/core patches
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    On Fri, 2012-10-26 at 17:07 +0800, Zhouping Liu wrote:
    > [ 180.918591] RIP: 0010:[<ffffffff8118c39a>] [<ffffffff8118c39a>] mem_cgroup_prepare_migration+0xba/0xd0

    > [ 182.681450] [<ffffffff81183b60>] do_huge_pmd_numa_page+0x180/0x500
    > [ 182.775090] [<ffffffff811585c9>] handle_mm_fault+0x1e9/0x360
    > [ 182.863038] [<ffffffff81632b62>] __do_page_fault+0x172/0x4e0
    > [ 182.950574] [<ffffffff8101c283>] ? __switch_to_xtra+0x163/0x1a0
    > [ 183.041512] [<ffffffff8101281e>] ? __switch_to+0x3ce/0x4a0
    > [ 183.126832] [<ffffffff8162d686>] ? __schedule+0x3c6/0x7a0
    > [ 183.211216] [<ffffffff81632ede>] do_page_fault+0xe/0x10
    > [ 183.293705] [<ffffffff8162f518>] page_fault+0x28/0x30

    Johannes, this looks like the thp migration memcg hookery gone bad,
    could you have a look at this?


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