linux-kernel - Re: A workaround for request_firmware() stuck in module

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Message-ID: <CAKi4VAKBDPnYak9j0AwGXcnUnxNMEtUww+cQ8b_RD_Ea+hH5tQ@mail.gmail.com>
Date:	Wed, 5 Sep 2012 13:51:27 -0300
From:	Lucas De Marchi <lucas.de.marchi@...il.com>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ming Lei <ming.lei@...onical.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Kay Sievers <kay@...y.org>,
	linux-kernel@...r.kernel.org
Subject: Re: A workaround for request_firmware() stuck in module_init

On Tue, Sep 4, 2012 at 10:06 AM, Takashi Iwai <tiwai@...e.de> wrote:
> Hi,
>
> as I've got recently a few bug reports regarding the stuck with
> request_firmware() in module_init of some sound drivers, I started
> looking at the issue.  Strangely, the problem doesn't happen on
> openSUSE 12.2 although it has the same udev version with libkmod as
> Fedora.  So I installed Fedora 17, and indeed I could see a problem
> there.

I fail to see how this is related to libkmod. It's indeed related to
the fact that udev now timeout a modprobe request so people stop doing
crazy things and like start daemons as modprobe's install rules. And
that's true even with old module-init-tools.



Lucas De Marchi
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