[lkml]   [2008]   [Oct]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[patch] oom: do not dump task state for non thread group leaders
When /proc/sys/vm/oom_dump_tasks is enabled, it's only necessary to dump
task state information for thread group leaders. The kernel log gets
quickly overwhelmed on machines with a massive number of threads by
dumping non-thread group leaders.

Cc: Christoph Lameter <>
Signed-off-by: David Rientjes <>
mm/oom_kill.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -297,6 +297,8 @@ static void dump_tasks(const struct mem_cgroup *mem)
if (mem && !task_in_mem_cgroup(p, mem))
+ if (!thread_group_leader(p))
+ continue;

printk(KERN_INFO "[%5d] %5d %5d %8lu %8lu %3d %3d %s\n",

 \ /
  Last update: 2008-10-25 01:45    [W:0.038 / U:0.408 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site