linux-kernel - Re: General protection fault when unloading snd_hda

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Message-ID: <20090412015811.GA3907@Pilar.aei.mpg.de>
Date:	Sun, 12 Apr 2009 03:58:11 +0200
From:	"Carlos R. Mafra" <crmafra2@...il.com>
To:	tiwai@...e.de
Cc:	Arjan van de Ven <arjan@...radead.org>,
	linux-kernel@...r.kernel.org, alsa-devel@...r.kernel.org,
	Michal Jaegermann <michal@...pspace.math.ualberta.ca>
Subject: Re: General protection fault when unloading snd_hda_intel on
	2.6.30-rc1+ (bisected)

On Sat 11.Apr'09 at 18:33:20 -0600, Michal Jaegermann wrote:
> On Sat, Apr 11, 2009 at 02:39:50PM -0700, Arjan van de Ven wrote:
> > 
> > so... "dev" is pointing evbit at... 697665646632785 which looks like grabage.
> 
> FWIW 697665646632785c decodes in ASCII as "\x2fdevi".

So I painfully (exchanged 'good' for 'bad' in the middle and had
to restart all over) bisected this down to

commit 3be141494a080a9189b51fa78154c975ad8d9806
Author: Takashi Iwai <tiwai@...e.de>
Date:   Fri Feb 20 14:11:16 2009 +0100

    ALSA: hda - Add generic pincfg initialization

    Added the generic pincfg cache and save/restore functions.
    Also introduced the pin-overriding via hwdep sysfs.


It doesn't revert cleanly from the latest kernel, so I could not double 
check it.

OBS: All tests were done with the headphone plugged in.
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