Re: [PATCH] autofs4 deadlock during expire - kernel 2.6

From: Arjan van de Ven
Date: Wed Sep 24 2003 - 08:14:25 EST


On Wed, 2003-09-24 at 15:01, Ian Kent wrote:
> This is a corrected patch for the autofs4 daedlock problem I posted about
> @@ -206,6 +207,11 @@
>
> interruptible_sleep_on(&wq->queue);
>
> + if (waitqueue_active(&wq->queue) && current != wq->owner) {
> + set_current_state(TASK_INTERRUPTIBLE);
> + schedule_timeout(wq->wait_ctr * (HZ/10));
> + }
> +

this really really looks like you're trying to pamper over a bug by
changing the timing somewhere instead of fixing it...

also are you sure the deadlock isn't because of the racey use of
interruptible_sleep_on ?

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