From: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hugh@veritas.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"balbir@linux.vnet.ibm.com" <balbir@linux.vnet.ibm.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
nishimura@mxp.nes.nec.co.jp
Subject: [bug][mmtom] memcg: MEM_CGROUP_ZSTAT underflow
Date: Fri, 19 Dec 2008 17:29:03 +0900 [thread overview]
Message-ID: <20081219172903.7ca9b123.nishimura@mxp.nes.nec.co.jp> (raw)
Hi.
Current(I'm testing 2008-12-16-15-50 with some patches, though) memcg have
MEM_CGROUP_ZSTAT underflow problem.
How to reproduce:
- make a directory, set mem.limit.
- run some programs exceeding mem.limit.
- make another directory, and all the tasks in old directory to new one.
- New directory's "inactive_anon" in memory.stat underflows.
>From my investigation:
- This problem seems to happen only when swapping anonymous pages. It seems
not to happen about shmem.
- After removing memcg-fix-swap-accounting-leak-v3.patch(and of course
memcg-fix-swap-accounting-leak-doc-fix.patch), this problem doesn't happen.
Thoughts?
Thanks,
Daisuke Nishimura.
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next reply other threads:[~2008-12-19 8:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-19 8:29 Daisuke Nishimura [this message]
2008-12-19 9:29 ` KAMEZAWA Hiroyuki
2008-12-19 9:40 ` KAMEZAWA Hiroyuki
2008-12-19 17:08 ` Daisuke Nishimura
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