Messages in this thread |  | | | Date | Fri, 28 Jan 2011 12:22:29 +0900 | | From | KAMEZAWA Hiroyuki <> | | Subject | [BUGFIX][PATCH 0/4] Fixes for memcg with THP |
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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.
Patch 4 may need discussion. I think this version is much simpler because I dropped almost all cosmetics. Please review.
This patch is onto mmotm-0125.
Thanks, -Kame
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