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>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"nishimura@mxp.nes.nec.co.jp" <nishimura@mxp.nes.nec.co.jp>
Subject: Re: [PATCH 1/2] memcg: some modification to softlimit under hierarchical memory reclaim.
Date: Tue, 29 Sep 2009 22:36:32 +0530 [thread overview]
Message-ID: <20090929170632.GA3071@balbir.in.ibm.com> (raw)
In-Reply-To: <20090929183321.3d4fbc1d.kamezawa.hiroyu@jp.fujitsu.com>
* KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> [2009-09-29 18:33:21]:
> On Tue, 29 Sep 2009 11:41:32 +0530
> Balbir Singh <balbir@linux.vnet.ibm.com> wrote:
>
> > * KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> [2009-09-29 15:01:41]:
> >
> > > No major changes in this patch for 3 weeks.
> > > While testing, I found a few css->refcnt bug in softlimit.(and posted patches)
> > > But it seems no more (easy) ones.
> > >
> >
> > Kamezawa-San, this worries me, could you please confirm if you are
> > able to see this behaviour without your patches applied as well? I am
> > doing some more stress tests on my side.
> >
> I found an easy way to reprocue. And yes, it can happen without this series.
>
Kamezawa-San,
Yes, your fix does work and the machine no longer gives a
BUG_ON()/WARN_ON(). Thanks for the analysis and fix.
--
Balbir
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prev parent reply other threads:[~2009-09-29 17:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-29 6:01 [PATCH 1/2] memcg: some modification to softlimit under hierarchical memory reclaim KAMEZAWA Hiroyuki
2009-09-29 6:03 ` [PATCH 2/2] memcg: reduce check for softlimit excess KAMEZAWA Hiroyuki
2009-09-29 6:11 ` [PATCH 1/2] memcg: some modification to softlimit under hierarchical memory reclaim Balbir Singh
2009-09-29 7:21 ` KAMEZAWA Hiroyuki
2009-09-29 7:24 ` KAMEZAWA Hiroyuki
2009-09-29 9:33 ` KAMEZAWA Hiroyuki
2009-09-29 11:13 ` Balbir Singh
2009-09-29 17:06 ` Balbir Singh [this message]
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