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| author | David Rientjes <rientjes@google.com> | 2008-11-06 12:53:29 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-06 15:41:18 -0800 |
| commit | b4416d2bea007f07f2e74cdc4cb64042ec996c83 (patch) | |
| tree | a7b8250e3ab4f9de7c55a5b502238767aff90665 | |
| parent | 953a64798d82ee5467da2bdc0e467ef874fbc208 (diff) | |
| download | linux-b4416d2bea007f07f2e74cdc4cb64042ec996c83.tar.bz2 | |
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>
| -rw-r--r-- | mm/oom_kill.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 64e5b4bcd964..2846a58e5de9 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", |