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Date: Mon, 18 Nov 2002 04:07:17 -0500 (EST)
From: Zwane Mwaikambo <zwane@holomorphy.com>
X-X-Sender: zwane@montezuma.mastecende.com
To: Taral <taral@taral.net>
cc: alsa-devel@lists.sourceforge.net, <linux-kernel@vger.kernel.org>
Subject: Re: Oops when removing snd-timer
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On Mon, 18 Nov 2002, Taral wrote:

> I was unloading ALSA (modular) when I got this lovely oops:
> (linux-2.5.47)

Looks like you loaded ens137x.c and then that driver got unloaded leaving 
the callback still valid, then the core timer code decided to walk off a 
cliff using that pointer.

0xc0365322 is in snd_timer_free (sound/core/timer.c:676).
671     static int snd_timer_free(snd_timer_t *timer)
672     {
673             snd_assert(timer != NULL, return -ENXIO);
674             if (timer->private_free)
675                     timer->private_free(timer);
676             snd_magic_kfree(timer);
677             return 0;
678     }

The problem seems to be a sort of chicken/egg case? We can't rely on 
modules being around even with this inter dependency case.

	Zwane
-- 
function.linuxpower.ca


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