From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: David Rientjes <rientjes@google.com>
Cc: kosaki.motohiro@jp.fujitsu.com,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>, Nick Piggin <npiggin@suse.de>,
Oleg Nesterov <oleg@redhat.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
linux-mm@kvack.org
Subject: Re: [patch -mm 01/18] oom: filter tasks not sharing the same cpuset
Date: Mon, 21 Jun 2010 20:45:48 +0900 (JST) [thread overview]
Message-ID: <20100621193224.B530.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1006162028410.21446@chino.kir.corp.google.com>
> On Sun, 13 Jun 2010, KOSAKI Motohiro wrote:
>
> > I have no objection because it's policy matter. but if so, dump_tasks()
> > should display mem_allowed mask too, probably.
>
> You could, but we'd want to do that all under cpuset_buffer_lock so we
> don't have to allocate it on the stack, which can be particularly lengthy
> when the page allocator is called.
Probably we don't need such worry. becuase a stack overflow risk depend on
deepest call path.
That's said, if out_of_memory() was called, page allocator did called
try_to_free_pages() at first. try_to_free_pages() have much deeper stack
rather than out_of_memory().
--
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next prev parent reply other threads:[~2010-06-21 11:45 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-01 7:18 [patch -mm 00/18] oom killer rewrite David Rientjes
2010-06-01 7:18 ` [patch -mm 01/18] oom: filter tasks not sharing the same cpuset David Rientjes
2010-06-01 7:20 ` KOSAKI Motohiro
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 18:37 ` David Rientjes
2010-06-13 11:24 ` KOSAKI Motohiro
2010-06-17 3:33 ` David Rientjes
2010-06-21 11:45 ` KOSAKI Motohiro
2010-06-21 11:45 ` KOSAKI Motohiro [this message]
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 18:43 ` David Rientjes
2010-06-08 23:25 ` Andrew Morton
2010-06-08 23:54 ` David Rientjes
2010-06-09 0:06 ` Andrew Morton
2010-06-09 1:07 ` David Rientjes
2010-06-13 11:24 ` KOSAKI Motohiro
2010-06-01 7:18 ` [patch -mm 02/18] oom: sacrifice child with highest badness score for parent David Rientjes
2010-06-01 7:39 ` KOSAKI Motohiro
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 18:41 ` David Rientjes
2010-06-13 11:24 ` KOSAKI Motohiro
2010-06-14 8:54 ` David Rientjes
2010-06-14 11:08 ` KOSAKI Motohiro
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 18:45 ` David Rientjes
2010-06-01 7:18 ` [patch -mm 03/18] oom: select task from tasklist for mempolicy ooms David Rientjes
2010-06-01 7:39 ` KOSAKI Motohiro
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 23:28 ` Andrew Morton
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-01 7:18 ` [patch -mm 04/18] oom: extract panic helper function David Rientjes
2010-06-01 7:33 ` KOSAKI Motohiro
2010-06-01 7:18 ` [patch -mm 05/18] oom: remove special handling for pagefault ooms David Rientjes
2010-06-01 7:34 ` KOSAKI Motohiro
2010-06-01 7:18 ` [patch -mm 06/18] oom: move sysctl declarations to oom.h David Rientjes
2010-06-01 7:34 ` KOSAKI Motohiro
2010-06-01 7:18 ` [patch -mm 07/18] oom: enable oom tasklist dump by default David Rientjes
2010-06-01 7:36 ` KOSAKI Motohiro
2010-06-01 7:18 ` [patch -mm 08/18] oom: badness heuristic rewrite David Rientjes
2010-06-01 7:36 ` KOSAKI Motohiro
2010-06-01 18:44 ` David Rientjes
2010-06-02 13:54 ` KOSAKI Motohiro
2010-06-02 21:20 ` David Rientjes
2010-06-03 23:10 ` Andrew Morton
2010-06-03 23:53 ` KAMEZAWA Hiroyuki
2010-06-04 0:04 ` Andrew Morton
2010-06-04 0:20 ` KAMEZAWA Hiroyuki
2010-06-04 5:57 ` KAMEZAWA Hiroyuki
2010-06-04 9:22 ` David Rientjes
2010-06-04 9:19 ` David Rientjes
2010-06-04 9:43 ` Oleg Nesterov
2010-06-04 10:54 ` KOSAKI Motohiro
2010-06-04 20:57 ` David Rientjes
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 23:47 ` Andrew Morton
2010-06-17 3:28 ` David Rientjes
2010-06-01 7:46 ` Nick Piggin
2010-06-01 18:56 ` David Rientjes
2010-06-02 13:54 ` KOSAKI Motohiro
2010-06-02 21:23 ` David Rientjes
2010-06-03 0:05 ` KAMEZAWA Hiroyuki
2010-06-03 6:44 ` David Rientjes
2010-06-03 3:07 ` KOSAKI Motohiro
2010-06-03 6:48 ` David Rientjes
2010-06-03 23:15 ` Andrew Morton
2010-06-04 10:54 ` KOSAKI Motohiro
2010-06-01 7:18 ` [patch -mm 09/18] oom: add forkbomb penalty to badness heuristic David Rientjes
2010-06-01 7:37 ` KOSAKI Motohiro
2010-06-01 18:57 ` David Rientjes
2010-06-03 20:33 ` David Rientjes
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-01 7:18 ` [patch -mm 10/18] oom: deprecate oom_adj tunable David Rientjes
2010-06-01 7:37 ` KOSAKI Motohiro
2010-06-01 7:18 ` [patch -mm 11/18] oom: avoid oom killer for lowmem allocations David Rientjes
2010-06-01 7:38 ` KOSAKI Motohiro
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 18:38 ` David Rientjes
2010-06-01 7:18 ` [patch -mm 12/18] oom: remove unnecessary code and cleanup David Rientjes
2010-06-01 7:40 ` KOSAKI Motohiro
2010-06-01 18:58 ` David Rientjes
2010-06-01 7:19 ` [patch -mm 13/18] oom: avoid race for oom killed tasks detaching mm prior to exit David Rientjes
2010-06-01 7:40 ` KOSAKI Motohiro
2010-06-01 18:59 ` David Rientjes
2010-06-01 20:43 ` Oleg Nesterov
2010-06-01 21:19 ` David Rientjes
2010-06-02 0:28 ` KAMEZAWA Hiroyuki
2010-06-02 9:49 ` David Rientjes
2010-06-02 10:46 ` Nick Piggin
2010-06-02 21:35 ` David Rientjes
2010-06-02 13:54 ` KOSAKI Motohiro
2010-06-01 7:19 ` [patch -mm 14/18] oom: check PF_KTHREAD instead of !mm to skip kthreads David Rientjes
2010-06-01 7:41 ` KOSAKI Motohiro
2010-06-01 7:19 ` [patch -mm 15/18] oom: introduce find_lock_task_mm() to fix !mm false positives David Rientjes
2010-06-01 7:41 ` KOSAKI Motohiro
2010-06-01 7:19 ` [patch -mm 16/18] oom: give current access to memory reserves if it has been killed David Rientjes
2010-06-01 7:44 ` KOSAKI Motohiro
2010-06-01 7:19 ` [patch -mm 17/18] oom: avoid sending exiting tasks a SIGKILL David Rientjes
2010-06-01 7:19 ` [patch -mm 18/18] oom: clean up oom_kill_task() David Rientjes
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