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From: Tim Waugh <twaugh@redhat.com>
To: Andrew Morton <andrewm@uow.edu.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: timing out on a semaphore
Date: Tue, 27 Feb 2001 14:39:42 +0000	[thread overview]
Message-ID: <20010227143942.C13721@redhat.com> (raw)
In-Reply-To: <20010225224039.W13721@redhat.com> <3A9990EF.8D4ECF49@uow.edu.au>
In-Reply-To: <3A9990EF.8D4ECF49@uow.edu.au>; from andrewm@uow.edu.au on Sun, Feb 25, 2001 at 11:10:39PM +0000

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On Sun, Feb 25, 2001 at 11:10:39PM +0000, Andrew Morton wrote:

> I think there might be a bogon in __down_interruptible's
> handling of the semaphore state in this case.  I remember
> spotting something a few months back but I can't immediately
> remember what it was :(
> 
> I'd suggest you slot a
> 
> 	sema_init(&port->physport->ieee1284.irq, 1);
> 
> into parport_wait_event() prior to adding the timer.  If that
> fixes it I'll go back through my patchpile, see if I can
> resurrect that grey cell.

I haven't been able to confirm that it works around it (can't repeat
the problem here), but what would you say if I said it did? ;-)

Tim.
*/

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  reply	other threads:[~2001-02-27 14:40 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-02-25 22:40 timing out on a semaphore Tim Waugh
2001-02-25 22:53 ` Davide Libenzi
2001-02-25 23:10 ` Andrew Morton
2001-02-27 14:39   ` Tim Waugh [this message]
2001-02-27 22:40     ` Andrew Morton
2001-02-27 23:28       ` Tim Waugh
2001-02-27 23:35         ` Davide Libenzi
2001-02-26  9:19 ` Arjan van de Ven

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