From: Davide Libenzi <davidel@xmailserver.org>
To: Tim Waugh <twaugh@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: RE: timing out on a semaphore
Date: Sun, 25 Feb 2001 14:53:15 -0800 (PST) [thread overview]
Message-ID: <XFMail.20010225145315.davidel@xmailserver.org> (raw)
In-Reply-To: <20010225224039.W13721@redhat.com>
On 25-Feb-2001 Tim Waugh wrote:
> I'm trying to chase down a semaphore time-out problem. I want to
> sleep on a semaphore until either
>
> (a) it's signalled, or
> (b) some amount of time has elapsed.
>
> What I'm doing is calling add_timer, and then down_interruptible, and
> finally del_timer. The timer's function ups the semaphore.
>
> The code is in parport_wait_event, in drivers/parport/ieee1284.c.
>
> Can anyone see anything obviously wrong with it? It seems to
> sometimes get stuck.
If it's SMP, have You tried to call del_timer_sync() ?
- Davide
next prev parent reply other threads:[~2001-02-25 22:52 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 [this message]
2001-02-25 23:10 ` Andrew Morton
2001-02-27 14:39 ` Tim Waugh
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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