[PATCH rh6] mm: skip zombie in OOM-killer

[Andrey Vagin]

A parent may wait a memory and zombie will prevent killing another task.

Signed-off-by: Andrey Vagin <avagin@xxxxxxxxxx>
---
 mm/oom_kill.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 7dcca55..2fc554e 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -311,7 +311,7 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
 		 * blocked waiting for another task which itself is waiting
 		 * for memory. Is there a better alternative?
 		 */
-		if (test_tsk_thread_flag(p, TIF_MEMDIE))
+		if (test_tsk_thread_flag(p, TIF_MEMDIE) && p->mm)
 			return ERR_PTR(-1UL);
 
 		/*
-- 
1.7.1

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