Re: [PATCH] sched: Avoid that __wait_on_bit_lock() hangs

[Oleg Nesterov]

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);