The patch titled
oom: enable oom tasklist dump by default
has been added to the -mm tree. Its filename is
oom-enable-oom-tasklist-dump-by-default.patch
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------------------------------------------------------
Subject: oom: enable oom tasklist dump by default
From: David Rientjes <rientjes@xxxxxxxxxx>
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@xxxxxxxxxx>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/sysctl/vm.txt | 2 +-
mm/oom_kill.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff -puN Documentation/sysctl/vm.txt~oom-enable-oom-tasklist-dump-by-default Documentation/sysctl/vm.txt
--- a/Documentation/sysctl/vm.txt~oom-enable-oom-tasklist-dump-by-default
+++ a/Documentation/sysctl/vm.txt
@@ -511,7 +511,7 @@ information may not be desired.
If this is set to non-zero, this information is shown whenever the
OOM killer actually kills a memory-hogging task.
-The default value is 0.
+The default value is 1 (enabled).
==============================================================
diff -puN mm/oom_kill.c~oom-enable-oom-tasklist-dump-by-default mm/oom_kill.c
--- a/mm/oom_kill.c~oom-enable-oom-tasklist-dump-by-default
+++ a/mm/oom_kill.c
@@ -32,7 +32,7 @@
int sysctl_panic_on_oom;
int sysctl_oom_kill_allocating_task;
-int sysctl_oom_dump_tasks;
+int sysctl_oom_dump_tasks = 1;
static DEFINE_SPINLOCK(zone_scan_lock);
/* #define DEBUG */
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
avr32-invoke-oom-killer-from-page-fault.patch
oom-check-pf_kthread-instead-of-mm-to-skip-kthreads.patch
oom-introduce-find_lock_task_mm-to-fix-mm-false-positives.patch
oom-dump_tasks-use-find_lock_task_mm-too.patch
oom-pf_exiting-check-should-take-mm-into-account.patch
oom-give-current-access-to-memory-reserves-if-it-has-been-killed.patch
oom-avoid-sending-exiting-tasks-a-sigkill.patch
oom-filter-tasks-not-sharing-the-same-cpuset.patch
oom-sacrifice-child-with-highest-badness-score-for-parent.patch
oom-select-task-from-tasklist-for-mempolicy-ooms.patch
oom-enable-oom-tasklist-dump-by-default.patch
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