From: Oleg Nesterov <oleg@redhat.com>
To: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
"mingo@kernel.org" <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>, Neil Brown <neilb@suse.de>,
Michael Shaver <jmshaver@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] sched: Avoid that __wait_on_bit_lock() hangs
Date: Tue, 9 Aug 2016 19:14:59 +0200 [thread overview]
Message-ID: <20160809171459.GA13840@redhat.com> (raw)
In-Reply-To: <78fafdc1-d4ae-a9a2-169c-1d456b6e6e41@sandisk.com>
On 08/08, Bart Van Assche wrote:
>
> No external modules were loaded when I triggered the lockup
Heh. Could you test the patch below?
Oleg.
--- x/kernel/sched/wait.c
+++ x/kernel/sched/wait.c
@@ -283,7 +283,7 @@ void abort_exclusive_wait(wait_queue_hea
if (!list_empty(&wait->task_list))
list_del_init(&wait->task_list);
else if (waitqueue_active(q))
- __wake_up_locked_key(q, mode, key);
+ __wake_up_locked_key(q, TASK_NORMAL, key);
spin_unlock_irqrestore(&q->lock, flags);
}
EXPORT_SYMBOL(abort_exclusive_wait);
next prev parent reply other threads:[~2016-08-09 17:15 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-03 16:35 [PATCH] sched: Avoid that __wait_on_bit_lock() hangs Bart Van Assche
2016-08-03 18:11 ` Peter Zijlstra
2016-08-03 18:56 ` Bart Van Assche
2016-08-03 21:30 ` Oleg Nesterov
2016-08-03 21:51 ` Bart Van Assche
2016-08-04 14:09 ` Peter Zijlstra
2016-08-04 14:31 ` Bart Van Assche
2016-08-05 17:41 ` Bart Van Assche
2016-08-08 10:22 ` Peter Zijlstra
2016-08-08 14:38 ` Bart Van Assche
2016-08-08 16:20 ` Oleg Nesterov
2016-08-08 18:31 ` Bart Van Assche
2016-08-09 17:14 ` Oleg Nesterov [this message]
2016-08-09 18:48 ` Bart Van Assche
2016-08-09 23:10 ` Bart Van Assche
2016-08-10 10:45 ` Oleg Nesterov
2016-08-10 16:01 ` Bart Van Assche
2016-08-10 16:27 ` Oleg Nesterov
2016-08-10 19:58 ` Bart Van Assche
2016-08-11 17:36 ` Oleg Nesterov
2016-08-12 16:16 ` Oleg Nesterov
2016-08-12 16:27 ` Bart Van Assche
2016-08-12 22:47 ` Bart Van Assche
2016-08-13 16:32 ` Oleg Nesterov
2016-08-15 23:39 ` Bart Van Assche
2016-08-16 13:06 ` Oleg Nesterov
2016-08-16 16:54 ` Bart Van Assche
2016-08-17 17:30 ` Oleg Nesterov
2016-08-13 17:07 ` Oleg Nesterov
2016-08-09 23:56 ` Bart Van Assche
2016-08-10 10:57 ` Oleg Nesterov
2016-08-10 11:03 ` Peter Zijlstra
2016-08-04 0:05 ` Bart Van Assche
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