linux-kernel - [patch] oom: kill all threads that share mm with killed task

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Message-ID: <Pine.LNX.4.64.0704232134430.11399@chino.kir.corp.google.com>
Date:	Mon, 23 Apr 2007 21:36:13 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
cc:	Andi Kleen <ak@...e.de>, Christoph Lameter <clameter@...r.sgi.com>,
	linux-kernel@...r.kernel.org
Subject: [patch] oom: kill all threads that share mm with killed task

oom_kill_task() calls __oom_kill_task() to OOM kill a selected task.
When finding other threads that share an mm with that task, we need to
kill those individual threads and not the same one.

Cc: Andi Kleen <ak@...e.de>
Cc: Christoph Lameter <clameter@...r.sgi.com>
Signed-off-by: David Rientjes <rientjes@...gle.com>
---
 mm/oom_kill.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -333,7 +333,7 @@ static int oom_kill_task(struct task_struct *p)
 	 */
 	do_each_thread(g, q) {
 		if (q->mm == mm && q->tgid != p->tgid)
-			force_sig(SIGKILL, p);
+			force_sig(SIGKILL, q);
 	} while_each_thread(g, q);
 
 	return 0;
-
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