From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: David Rientjes <rientjes@google.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>, Nick Piggin <npiggin@suse.de>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
linux-mm@kvack.org
Subject: Re: [patch -mm v2 04/10] oom: remove special handling for pagefault ooms
Date: Fri, 5 Mar 2010 09:58:53 +0900 [thread overview]
Message-ID: <20100305095853.d71dcad5.kamezawa.hiroyu@jp.fujitsu.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1003040149110.30214@chino.kir.corp.google.com>
On Thu, 4 Mar 2010 01:50:04 -0800 (PST)
David Rientjes <rientjes@google.com> wrote:
> On Thu, 4 Mar 2010, KAMEZAWA Hiroyuki wrote:
>
> > About the _changes_ for generic part itself, I have no concerns.
> >
>
> Is that your acked-by?
>
Anyway, I think you'll repost. I'll see again. feel free to CC me.
> > But I'm not sure whether TIF_MEMDIE task has been already killed (quit tasklist)
> > before VM_FAULT_OOM task comes here.
> >
>
> If it's no longer a member of the tasklist then it has freed its memory
> and thus returning VM_FAULT_OOM again would mean that we are still oom.
>
My concern was multi-threaded task with ignoring SIGCHLD..but after looking into
page allocatoer again, I think you're right. Thanks.
Thanks,
-Kame
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next prev parent reply other threads:[~2010-03-05 1:02 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-26 23:52 [patch -mm v2 00/10] oom killer rewrite David Rientjes
2010-02-26 23:53 ` [patch -mm v2 01/10] oom: filter tasks not sharing the same cpuset David Rientjes
2010-03-02 4:54 ` Balbir Singh
2010-02-26 23:53 ` [patch -mm v2 02/10] oom: sacrifice child with highest badness score for parent David Rientjes
2010-03-02 4:54 ` Balbir Singh
2010-02-26 23:53 ` [patch -mm v2 03/10] oom: select task from tasklist for mempolicy ooms David Rientjes
2010-02-26 23:53 ` [patch -mm v2 04/10] oom: remove special handling for pagefault ooms David Rientjes
2010-03-01 1:12 ` KAMEZAWA Hiroyuki
2010-03-01 10:13 ` David Rientjes
2010-03-01 23:59 ` KAMEZAWA Hiroyuki
2010-03-02 23:55 ` David Rientjes
2010-03-03 0:24 ` KAMEZAWA Hiroyuki
2010-03-03 0:44 ` David Rientjes
2010-03-01 5:23 ` Balbir Singh
2010-03-01 10:04 ` David Rientjes
2010-03-01 23:55 ` KAMEZAWA Hiroyuki
2010-03-03 0:01 ` David Rientjes
2010-03-03 0:22 ` KAMEZAWA Hiroyuki
2010-03-03 0:38 ` David Rientjes
2010-03-03 0:44 ` KAMEZAWA Hiroyuki
2010-03-03 0:53 ` David Rientjes
2010-03-03 0:58 ` KAMEZAWA Hiroyuki
2010-03-03 23:27 ` David Rientjes
2010-03-04 3:59 ` KAMEZAWA Hiroyuki
2010-03-04 6:50 ` David Rientjes
2010-03-04 7:00 ` KAMEZAWA Hiroyuki
2010-03-04 9:50 ` David Rientjes
2010-03-05 0:58 ` KAMEZAWA Hiroyuki [this message]
2010-03-02 2:21 ` KAMEZAWA Hiroyuki
2010-03-02 23:59 ` David Rientjes
2010-02-26 23:53 ` [patch -mm v2 05/10] oom: badness heuristic rewrite David Rientjes
2010-02-26 23:53 ` [patch -mm v2 06/10] oom: deprecate oom_adj tunable David Rientjes
2010-02-26 23:53 ` [patch -mm v2 07/10] oom: replace sysctls with quick mode David Rientjes
2010-02-26 23:53 ` [patch -mm v2 08/10] oom: avoid oom killer for lowmem allocations David Rientjes
2010-02-26 23:53 ` [patch -mm v2 09/10] oom: remove unnecessary code and cleanup David Rientjes
2010-02-26 23:53 ` [patch -mm v2 10/10] oom: default to killing current for pagefault ooms David Rientjes
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