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oom: enable oom tasklist dump by default 

The oom killer tasklist dump, enabled with the oom_dump_tasks sysctl, is
very helpful information in diagnosing why a user's task has been killed.
It emits useful information such as each eligible thread's memory usage
that can determine why the system is oom, so it should be enabled by
default.

Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Rientjes 2010-08-09 17:18:53 -07:00 committed by Linus Torvalds
parent 6f48d0ebd9
commit ad915c432e
2 changed files with 2 additions and 2 deletions
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2
Documentation/sysctl/vm.txt
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@ -511,7 +511,7 @@ information may not be desired.
If this is set to non-zero, this information is shown whenever the If this is set to non-zero, this information is shown whenever the
OOM killer actually kills a memory-hogging task. OOM killer actually kills a memory-hogging task.
The default value is 0. The default value is 1 (enabled).
============================================================== ==============================================================

2
mm/oom_kill.c
View File

@ -32,7 +32,7 @@
int sysctl_panic_on_oom; int sysctl_panic_on_oom;
int sysctl_oom_kill_allocating_task; int sysctl_oom_kill_allocating_task;
int sysctl_oom_dump_tasks; int sysctl_oom_dump_tasks = 1;
static DEFINE_SPINLOCK(zone_scan_lock); static DEFINE_SPINLOCK(zone_scan_lock);
/* #define DEBUG */ /* #define DEBUG */