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From: Marc Haber <mh+linux-kernel@zugschlus.de>
To: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Cc: Stefan Lippers-Hollmann <s.L-H@gmx.de>,
	Takashi Iwai <tiwai@suse.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	David Henningsson <david.henningsson@canonical.com>,
	Kay Sievers <kay@redhat.com>
Subject: Re: udevd cannot modprobe snd-hda-intel with 3.9.8
Date: Mon, 1 Jul 2013 17:50:16 +0200	[thread overview]
Message-ID: <20130701155016.GA23358@torres.zugschlus.de> (raw)
In-Reply-To: <51CED59E.2030307@gmail.com>

On Sat, Jun 29, 2013 at 02:39:58PM +0200, Riccardo Magliocchetti wrote:
> Confirm that after purging oss-compat 3.9.8 boot is fine. Please
> note that a yesterday build of 3.6.11 used to work fine too so
> there's also something that changed kernel side.
> FYI there was already a bug in debian bug tracker:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=660803#130

I found myself in the same situation. Unfortunately, right after doing
a BIOS update on my T520, which has led me into the wrong direction.
Additionally, he real colprit is snd.ko, which is loaded as a
dependency of snd-hda-intel and - surprisingly for me - thinkpad_acpi.
The latter sent me into another round of trying to debug ACPI. I
suspected ACPI to be the culprit because my notebook wouldn't suspend.

The issue does not appear when one uses a Debian kernel, or uses the
configuration that Debian uses for its kernels to build a vanilla
kernel.org kernel. This has, after a gazillion of reoboots and
experimenting with man different blacklist entries and kernel
configuration, led me to the fact that this bug does not show if the
kernel is compiled with CONFIG_SND_SUPPORT_OLD_API=y.

So it was my error to dump backwards compatibility and to remove the
old api support. I have now set CONFIG_SND_SUPPORT_OLD_API=y again and
everything is fine.

Greetings
Marc

-- 
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Marc Haber         | "I don't trust Computers. They | Mailadresse im Header
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  reply	other threads:[~2013-07-01 16:31 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-28 18:10 udevd cannot modprobe snd-hda-intel with 3.9.8 Riccardo Magliocchetti
2013-06-28 20:08 ` Stefan Lippers-Hollmann
2013-06-29 12:39   ` Riccardo Magliocchetti
2013-07-01 15:50     ` Marc Haber [this message]
2013-07-02  4:47       ` Damien Wyart

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