From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Morton <akpm@osdl.org>
Subject: Re: backlight: oops in __mutex_lock_slowpath
 during head /sys/class/graphics/fb0/* in 2.6.18
Date: Fri, 22 Sep 2006 16:02:55 -0700
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To: Olaf Hering <olaf@aepfle.de>
Cc: linux-fbdev-devel@lists.sourceforge.net, Daniel R Thompson <daniel.thompson@st.com>, Michael Hanselmann <linux-kernel@hansmi.ch>, linux-kernel@vger.kernel.org, Jon Smirl <jonsmirl@gmail.com>, "Antonino A. Daplas" <adaplas@pol.net>

On Fri, 22 Sep 2006 13:26:22 +0200
Olaf Hering <olaf@aepfle.de> wrote:

> On Thu, Sep 21, Michael Hanselmann wrote:
> 
> > What about the patch below? Does it work for you?
> 
> Appears to work.
> 
> tangerine:~ # head /sys/class/graphics/fb0/*
> ==> /sys/class/graphics/fb0/bits_per_pixel <==
> 8
> 
> ==> /sys/class/graphics/fb0/bl_curve <==
> head: error reading `/sys/class/graphics/fb0/bl_curve': No such device
> 
> ==> /sys/class/graphics/fb0/blank <==
> 
> ==> /sys/class/graphics/fb0/console <==
> 
> ==> /sys/class/graphics/fb0/cursor <==
> 
> ==> /sys/class/graphics/fb0/dev <==
> 29:0
> 
> ==> /sys/class/graphics/fb0/mode <==
> 
> ==> /sys/class/graphics/fb0/modes <==
> U:832x624p-74
> 
> ==> /sys/class/graphics/fb0/name <==
> valkyrie
> 
> ==> /sys/class/graphics/fb0/pan <==
> 0,0
> 
> ==> /sys/class/graphics/fb0/rotate <==
> 0
> 
> ==> /sys/class/graphics/fb0/state <==
> 0
> 
> ==> /sys/class/graphics/fb0/stride <==
> 832
> 
> ==> /sys/class/graphics/fb0/subsystem <==
> head: error reading `/sys/class/graphics/fb0/subsystem': Is a directory
> head: cannot open `/sys/class/graphics/fb0/uevent' for reading: Permission denied
> 
> ==> /sys/class/graphics/fb0/virtual_size <==
> 832,624

Still looks like a bit of a mess, but I assume that's expected.

Michael, I take it that patch was final?

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