From: Peter Chiang <pchiang@nvidia.com>
To: <ccross@android.com>, <pchiang@nvidia.com>, <lizefan@huawei.com>,
<akpm@linux-foundation.org>, <oleg@redhat.com>, <tj@kernel.org>,
<pavel@ucw.cz>, <ebiederm@xmission.com>, <guillaume@morinfr.org>
Cc: <linux-kernel@vger.kernel.org>
Subject: [PATCH] mm : Avoid candidate task is equal to current task
Date: Wed, 16 Apr 2014 11:02:59 +0800 [thread overview]
Message-ID: <1397617379-26895-1-git-send-email-pchiang@nvidia.com> (raw)
From: pchiang <pchiang@nvidia.com>
Fix kernel panic when finding a new owner for the mm
and the new owner is equal to current onwer
Signed-off-by: pchiang <pchiang@nvidia.com>
---
kernel/exit.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/exit.c b/kernel/exit.c
index 6ed6a1d..aa98422 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -399,7 +399,7 @@ retry:
* here often
*/
do_each_thread(g, c) {
- if (c->mm == mm)
+ if ((c != p) && (c->mm == mm))
goto assign_new_owner;
} while_each_thread(g, c);
--
1.8.1.5
next reply other threads:[~2014-04-16 3:04 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-16 3:02 Peter Chiang [this message]
2014-04-16 12:31 ` Peter Chiang
2014-04-16 12:52 ` Peter Chiang
2014-04-16 13:57 ` Oleg Nesterov
2014-04-17 6:48 ` Peter Chiang
2014-04-18 16:23 ` Oleg Nesterov
2014-04-18 17:26 ` [PATCH 0/2] memcg: mm_update_next_owner() should skip kthreads Oleg Nesterov
2014-04-18 17:26 ` [PATCH 1/2] " Oleg Nesterov
2014-04-18 17:27 ` [PATCH 2/2] memcg: optimize the "Search everything else" loop in mm_update_next_owner() Oleg Nesterov
2014-04-18 18:24 ` [PATCH 0/2] memcg: mm_update_next_owner() should skip kthreads Michal Hocko
2014-04-18 18:44 ` Oleg Nesterov
2014-04-18 19:12 ` [PATCH 0/1] memcg: kill start_kernel()->mm_init_owner(init_mm) Oleg Nesterov
2014-04-18 19:13 ` [PATCH 1/1] " Oleg Nesterov
2014-04-22 13:34 ` Michal Hocko
2014-04-22 13:23 ` [PATCH 0/1] " Michal Hocko
2014-04-22 16:15 ` [PATCH 0/1] memcg: kill CONFIG_MM_OWNER Oleg Nesterov
2014-04-22 16:15 ` [PATCH 1/1] " Oleg Nesterov
2014-04-22 16:39 ` Johannes Weiner
2014-04-22 16:59 ` [PATCH 0/1] " Michal Hocko
2014-04-22 10:52 ` [PATCH 0/2] memcg: mm_update_next_owner() should skip kthreads Michal Hocko
2014-04-22 13:21 ` Michal Hocko
2014-04-22 21:35 ` Hugh Dickins
2014-04-23 7:04 ` Michal Hocko
2014-04-19 8:34 ` Pavel Machek
2014-04-19 18:14 ` Oleg Nesterov
2014-04-19 21:23 ` Hugh Dickins
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