From: Andrew Morton <akpm@linux-foundation.org>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>,
Rik van Riel <riel@redhat.com>, Nick Piggin <npiggin@suse.de>,
Oleg Nesterov <oleg@redhat.com>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
linux-mm@kvack.org
Subject: Re: [patch 05/18] oom: give current access to memory reserves if it has been killed
Date: Tue, 8 Jun 2010 13:12:11 -0700 [thread overview]
Message-ID: <20100608131211.e769e3a1.akpm@linux-foundation.org> (raw)
In-Reply-To: <20100608203216.765D.A69D9226@jp.fujitsu.com>
On Tue, 8 Jun 2010 20:41:57 +0900 (JST)
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> wrote:
> > +
> > if (sysctl_panic_on_oom == 2) {
> > dump_header(NULL, gfp_mask, order, NULL);
> > panic("out of memory. Compulsory panic_on_oom is selected.\n");
>
> Sorry, I had found this patch works incorrect. I don't pulled.
Saying "it doesn't work and I'm not telling you why" is unhelpful. In
fact it's the opposite of helpful because it blocks merging of the fix
and doesn't give us any way to move forward.
So what can I do? Hard.
What I shall do is to merge the patch in the hope that someone else will
discover the undescribed problem and we will fix it then. That's very
inefficient.
--
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next prev parent reply other threads:[~2010-06-08 20:12 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-06 22:33 [patch 00/18] oom killer rewrite David Rientjes
2010-06-06 22:34 ` [patch 01/18] oom: check PF_KTHREAD instead of !mm to skip kthreads David Rientjes
2010-06-07 12:12 ` Balbir Singh
2010-06-07 19:50 ` David Rientjes
2010-06-08 19:33 ` Andrew Morton
2010-06-08 23:40 ` David Rientjes
2010-06-08 23:52 ` Andrew Morton
2010-06-06 22:34 ` [patch 02/18] oom: introduce find_lock_task_mm() to fix !mm false positives David Rientjes
2010-06-07 12:58 ` Balbir Singh
2010-06-07 13:49 ` Minchan Kim
2010-06-07 19:49 ` David Rientjes
2010-06-08 19:42 ` Andrew Morton
2010-06-08 20:14 ` Oleg Nesterov
2010-06-08 20:17 ` Oleg Nesterov
2010-06-08 21:34 ` Andrew Morton
2010-06-08 23:50 ` David Rientjes
2010-06-06 22:34 ` [patch 03/18] oom: dump_tasks use find_lock_task_mm too David Rientjes
2010-06-08 19:55 ` Andrew Morton
2010-06-09 0:06 ` David Rientjes
2010-06-06 22:34 ` [patch 04/18] oom: PF_EXITING check should take mm into account David Rientjes
2010-06-08 20:00 ` Andrew Morton
2010-06-06 22:34 ` [patch 05/18] oom: give current access to memory reserves if it has been killed David Rientjes
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 18:47 ` David Rientjes
2010-06-14 11:08 ` KOSAKI Motohiro
2010-06-08 20:12 ` Andrew Morton [this message]
2010-06-13 11:24 ` KOSAKI Motohiro
2010-06-08 20:08 ` Andrew Morton
2010-06-09 0:14 ` David Rientjes
2010-06-06 22:34 ` [patch 06/18] oom: avoid sending exiting tasks a SIGKILL David Rientjes
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 18:48 ` David Rientjes
2010-06-08 20:17 ` Andrew Morton
2010-06-08 20:26 ` Oleg Nesterov
2010-06-09 6:32 ` David Rientjes
2010-06-09 16:25 ` Oleg Nesterov
2010-06-09 19:44 ` David Rientjes
2010-06-09 20:14 ` Oleg Nesterov
2010-06-10 0:15 ` KAMEZAWA Hiroyuki
2010-06-10 1:21 ` Oleg Nesterov
2010-06-10 1:43 ` KAMEZAWA Hiroyuki
2010-06-10 1:51 ` Oleg Nesterov
2010-06-06 22:34 ` [patch 07/18] oom: filter tasks not sharing the same cpuset David Rientjes
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 18:51 ` David Rientjes
2010-06-08 19:27 ` Andrew Morton
2010-06-13 11:24 ` KOSAKI Motohiro
2010-07-02 22:35 ` Andrew Morton
2010-07-04 22:08 ` David Rientjes
2010-07-09 3:00 ` KOSAKI Motohiro
2010-06-08 20:23 ` Andrew Morton
2010-06-09 0:25 ` David Rientjes
2010-06-06 22:34 ` [patch 08/18] oom: sacrifice child with highest badness score for parent David Rientjes
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 18:53 ` David Rientjes
2010-06-08 20:33 ` Andrew Morton
2010-06-09 0:30 ` David Rientjes
2010-06-06 22:34 ` [patch 09/18] oom: select task from tasklist for mempolicy ooms David Rientjes
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 21:08 ` Andrew Morton
2010-06-08 21:17 ` Oleg Nesterov
2010-06-09 0:46 ` David Rientjes
2010-06-08 23:43 ` Andrew Morton
2010-06-09 0:40 ` David Rientjes
2010-06-06 22:34 ` [patch 10/18] oom: enable oom tasklist dump by default David Rientjes
2010-06-08 11:42 ` KOSAKI Motohiro
2010-06-08 18:56 ` David Rientjes
2010-06-08 21:13 ` Andrew Morton
2010-06-09 0:52 ` David Rientjes
2010-06-06 22:34 ` [patch 11/18] oom: avoid oom killer for lowmem allocations David Rientjes
2010-06-08 11:42 ` KOSAKI Motohiro
2010-06-08 21:19 ` Andrew Morton
2010-06-06 22:34 ` [patch 12/18] oom: extract panic helper function David Rientjes
2010-06-08 11:42 ` KOSAKI Motohiro
2010-06-06 22:34 ` [patch 13/18] oom: remove special handling for pagefault ooms David Rientjes
2010-06-08 11:42 ` KOSAKI Motohiro
2010-06-08 18:57 ` David Rientjes
2010-06-08 21:27 ` Andrew Morton
2010-06-06 22:34 ` [patch 14/18] oom: move sysctl declarations to oom.h David Rientjes
2010-06-08 11:42 ` KOSAKI Motohiro
2010-06-06 22:34 ` [patch 15/18] oom: remove unnecessary code and cleanup David Rientjes
2010-06-06 22:34 ` [patch 16/18] oom: badness heuristic rewrite David Rientjes
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 23:02 ` Andrew Morton
2010-06-13 11:24 ` KOSAKI Motohiro
2010-06-17 5:14 ` David Rientjes
2010-06-21 11:45 ` KOSAKI Motohiro
2010-06-21 20:47 ` David Rientjes
2010-06-30 9:26 ` KOSAKI Motohiro
2010-06-17 5:12 ` David Rientjes
2010-06-21 11:45 ` KOSAKI Motohiro
2010-06-08 22:58 ` Andrew Morton
2010-06-17 5:32 ` David Rientjes
2010-06-06 22:34 ` [patch 17/18] oom: add forkbomb penalty to badness heuristic David Rientjes
2010-06-08 11:41 ` KOSAKI Motohiro
2010-06-08 23:15 ` Andrew Morton
2010-06-06 22:35 ` [patch 18/18] oom: deprecate oom_adj tunable David Rientjes
2010-06-08 11:42 ` KOSAKI Motohiro
2010-06-08 19:00 ` David Rientjes
2010-06-08 23:18 ` Andrew Morton
2010-06-13 11:24 ` KOSAKI Motohiro
2010-06-17 3:36 ` David Rientjes
2010-06-21 11:45 ` KOSAKI Motohiro
2010-06-21 20:54 ` David Rientjes
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