On 10/26/2012 05:20 PM, Ingo Molnar wrote:
* Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote:
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?
Meanwhile, Zhouping Liu, could you please not apply the last
patch:
[PATCH] sched, numa, mm: Add memcg support to do_huge_pmd_numa_page()
and see whether it boots/works without that?
Ok, I reverted the 31st patch, will provide the results here after I
finish testing.
Thanks,
Zhouping
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