lkml.org 
[lkml]   [2011]   [Jan]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
DateFri, 28 Jan 2011 12:22:29 +0900
FromKAMEZAWA Hiroyuki <>
Subject[BUGFIX][PATCH 0/4] Fixes for memcg with THP

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



\
 
 \ /
  Last update: 2011-01-28 04:31    [from the cache]
©2003-2010