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    SubjectRe: [BUGFIX][PATCH 0/4] Fixes for memcg with THP
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    On Fri, Jan 28, 2011 at 8:52 AM, KAMEZAWA Hiroyuki
    <kamezawa.hiroyu@jp.fujitsu.com> wrote:
    >
    > On recent -mm, when I run make -j 8 under 200M limit of memcg, as
    > ==
    > # mount -t cgroup none /cgroup/memory -o memory
    > # mkdir /cgroup/memory/A
    > # echo 200M > /cgroup/memory/A/memory.limit_in_bytes
    > # echo $$ > /cgroup/memory/A/tasks
    > # make -j 8 kernel
    > ==
    >
    > I see hangs with khugepaged. That's because memcg's memory reclaim
    > routine doesn't handle HUGE_PAGE request in proper way. And khugepaged
    > doesn't know about memcg.
    >
    > This patch set is for fixing above hang. Patch 1-3 seems obvious and
    > has the same concept as patches in RHEL.

    Do you have any backtraces? Are they in the specific patches?

    Balbir


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