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authorDavid Rientjes <rientjes@google.com>2008-11-06 12:53:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-11-06 15:41:18 -0800
commitb4416d2bea007f07f2e74cdc4cb64042ec996c83 (patch)
treea7b8250e3ab4f9de7c55a5b502238767aff90665 /mm
parent953a64798d82ee5467da2bdc0e467ef874fbc208 (diff)
downloadlinux-2.6.34-ux500-b4416d2bea007f07f2e74cdc4cb64042ec996c83.tar.gz
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. Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/oom_kill.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 64e5b4bcd96..2846a58e5de 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -295,6 +295,8 @@ static void dump_tasks(const struct mem_cgroup *mem)
continue;
if (mem && !task_in_mem_cgroup(p, mem))
continue;
+ if (!thread_group_leader(p))
+ continue;
task_lock(p);
printk(KERN_INFO "[%5d] %5d %5d %8lu %8lu %3d %3d %s\n",