The patch titled
oom: do not dump task state for non thread group leaders
has been added to the -mm tree. Its filename is
oom-do-not-dump-task-state-for-non-thread-group-leaders.patch
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------------------------------------------------------
Subject: oom: do not dump task state for non thread group leaders
From: David Rientjes <rientjes@xxxxxxxxxx>
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 <cl@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/oom_kill.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN mm/oom_kill.c~oom-do-not-dump-task-state-for-non-thread-group-leaders mm/oom_kill.c
--- a/mm/oom_kill.c~oom-do-not-dump-task-state-for-non-thread-group-leaders
+++ a/mm/oom_kill.c
@@ -295,6 +295,8 @@ static void dump_tasks(const struct 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",
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
oom-do-not-dump-task-state-for-non-thread-group-leaders.patch
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