From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"hannes@cmpxchg.org" <hannes@cmpxchg.org>,
"nishimura@mxp.nes.nec.co.jp" <nishimura@mxp.nes.nec.co.jp>
Subject: Re: [BUGFIX][PATCH 0/4] Fixes for memcg with THP
Date: Sat, 29 Jan 2011 18:17:56 +0530 [thread overview]
Message-ID: <AANLkTiktzgxEVROyB=-0ZNq5xzao1Q-Cu3xpGqhx0gxm@mail.gmail.com> (raw)
In-Reply-To: <20110128122229.6a4c74a2.kamezawa.hiroyu@jp.fujitsu.com>
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 $$ > /cgroup/memory/A/tasks
> # make -j 8 kernel
> ==
>
> I see hangs with khugepaged. That's because memcg's memory reclaim
> routine doesn't handle HUGE_PAGE request in proper way. And khugepaged
> doesn't know about memcg.
>
> This patch set is for fixing above hang. Patch 1-3 seems obvious and
> has the same concept as patches in RHEL.
Do you have any backtraces? Are they in the specific patches?
Balbir
WARNING: multiple messages have this Message-ID (diff)
From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"hannes@cmpxchg.org" <hannes@cmpxchg.org>,
"nishimura@mxp.nes.nec.co.jp" <nishimura@mxp.nes.nec.co.jp>
Subject: Re: [BUGFIX][PATCH 0/4] Fixes for memcg with THP
Date: Sat, 29 Jan 2011 18:17:56 +0530 [thread overview]
Message-ID: <AANLkTiktzgxEVROyB=-0ZNq5xzao1Q-Cu3xpGqhx0gxm@mail.gmail.com> (raw)
In-Reply-To: <20110128122229.6a4c74a2.kamezawa.hiroyu@jp.fujitsu.com>
On Fri, Jan 28, 2011 at 8:52 AM, KAMEZAWA Hiroyuki
<kamezawa.hiroyu@jp.fujitsu.com> wrote:
>
> On recent -mm, when I run make -j 8 under 200M limit of memcg, as
> ==
> # mount -t cgroup none /cgroup/memory -o memory
> # mkdir /cgroup/memory/A
> # echo 200M > /cgroup/memory/A/memory.limit_in_bytes
> # echo $$ > /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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next prev parent reply other threads:[~2011-01-29 12:47 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-28 3:22 [BUGFIX][PATCH 0/4] Fixes for memcg with THP KAMEZAWA Hiroyuki
2011-01-28 3:22 ` KAMEZAWA Hiroyuki
2011-01-28 3:24 ` [BUGFIX][PATCH 1/4] memcg: fix limit estimation at reclaim for hugepage KAMEZAWA Hiroyuki
2011-01-28 3:24 ` KAMEZAWA Hiroyuki
2011-01-28 4:40 ` Daisuke Nishimura
2011-01-28 4:40 ` Daisuke Nishimura
2011-01-28 4:49 ` KAMEZAWA Hiroyuki
2011-01-28 4:49 ` KAMEZAWA Hiroyuki
2011-01-28 4:58 ` KAMEZAWA Hiroyuki
2011-01-28 4:58 ` KAMEZAWA Hiroyuki
2011-01-28 5:36 ` Daisuke Nishimura
2011-01-28 5:36 ` Daisuke Nishimura
2011-01-28 8:04 ` Minchan Kim
2011-01-28 8:04 ` Minchan Kim
2011-01-28 8:17 ` Johannes Weiner
2011-01-28 8:17 ` Johannes Weiner
2011-01-28 8:25 ` Minchan Kim
2011-01-28 8:25 ` Minchan Kim
2011-01-28 8:36 ` KAMEZAWA Hiroyuki
2011-01-28 8:36 ` KAMEZAWA Hiroyuki
2011-01-30 2:26 ` Minchan Kim
2011-01-30 2:26 ` Minchan Kim
2011-01-28 8:41 ` Johannes Weiner
2011-01-28 8:41 ` Johannes Weiner
2011-01-28 8:24 ` KAMEZAWA Hiroyuki
2011-01-28 8:24 ` KAMEZAWA Hiroyuki
2011-01-28 8:37 ` Minchan Kim
2011-01-28 8:37 ` Minchan Kim
2011-01-28 7:52 ` Johannes Weiner
2011-01-28 7:52 ` Johannes Weiner
2011-01-28 8:06 ` KAMEZAWA Hiroyuki
2011-01-28 8:06 ` KAMEZAWA Hiroyuki
2011-01-28 3:26 ` [BUGFIX][PATCH 2/4] memcg: fix charge path for THP and allow early retirement KAMEZAWA Hiroyuki
2011-01-28 3:26 ` KAMEZAWA Hiroyuki
2011-01-28 5:37 ` Daisuke Nishimura
2011-01-28 5:37 ` Daisuke Nishimura
2011-01-28 7:57 ` Johannes Weiner
2011-01-28 7:57 ` Johannes Weiner
2011-01-28 8:14 ` KAMEZAWA Hiroyuki
2011-01-28 8:14 ` KAMEZAWA Hiroyuki
2011-01-28 9:02 ` Johannes Weiner
2011-01-28 9:02 ` Johannes Weiner
2011-01-28 9:16 ` KAMEZAWA Hiroyuki
2011-01-28 9:16 ` KAMEZAWA Hiroyuki
2011-01-28 3:27 ` [BUGFIX][PATCH 3/4] mecg: fix oom flag at THP charge KAMEZAWA Hiroyuki
2011-01-28 3:27 ` KAMEZAWA Hiroyuki
2011-01-28 5:39 ` Daisuke Nishimura
2011-01-28 5:39 ` Daisuke Nishimura
2011-01-28 5:50 ` KAMEZAWA Hiroyuki
2011-01-28 5:50 ` KAMEZAWA Hiroyuki
2011-01-28 8:02 ` Johannes Weiner
2011-01-28 8:02 ` Johannes Weiner
2011-01-28 8:21 ` KAMEZAWA Hiroyuki
2011-01-28 8:21 ` KAMEZAWA Hiroyuki
2011-01-31 7:41 ` Balbir Singh
2011-01-31 7:41 ` Balbir Singh
2011-01-28 3:28 ` [BUGFIX][PATCH 4/4] memcg: fix khugepaged should skip busy memcg KAMEZAWA Hiroyuki
2011-01-28 3:28 ` KAMEZAWA Hiroyuki
2011-01-28 8:20 ` Daisuke Nishimura
2011-01-28 8:20 ` Daisuke Nishimura
2011-01-28 8:30 ` KAMEZAWA Hiroyuki
2011-01-28 8:30 ` KAMEZAWA Hiroyuki
2011-01-29 12:47 ` Balbir Singh [this message]
2011-01-29 12:47 ` [BUGFIX][PATCH 0/4] Fixes for memcg with THP Balbir Singh
2011-01-30 23:55 ` KAMEZAWA Hiroyuki
2011-01-30 23:55 ` KAMEZAWA Hiroyuki
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