From: Ingo Molnar <mingo@elte.hu>
To: Sitsofe Wheeler <sitsofe@yahoo.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>,
dri-devel@lists.sourceforge.net,
LKML <linux-kernel@vger.kernel.org>,
Suresh Siddha <suresh.b.siddha@intel.com>,
Jesse Barnes <jbarnes@virtuousgeek.org>
Subject: Re: [TIP,regression,i915] /dev/dri/card0 is no longer present
Date: Sun, 1 Mar 2009 12:39:48 +0100 [thread overview]
Message-ID: <20090301113948.GA3602@elte.hu> (raw)
In-Reply-To: <20090301110455.GA18547@silver.sucs.org>
* Sitsofe Wheeler <sitsofe@yahoo.com> wrote:
> Hi,
>
> With the latest -tip /dev/dri/card0 is MIA on my EeePC 900. A bisection
> has tracked the probem down to the following commit:
>
> commit 17581ad812a9abb0182260374ef2e52d4a808a64
> Author: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
> Date: Tue Feb 24 17:35:14 2009 -0800
>
> gpu/drm, x86, PAT: PAT support for io_mapping_*
>
> Make io_mapping_create_wc and io_mapping_free go through PAT to make sure
> that there are no memory type aliases.
>
> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
> Cc: Eric Anholt <eric@anholt.net>
> Cc: Keith Packard <keithp@keithp.com>
> Signed-off-by: Ingo Molnar <mingo@elte.hu>
>
> Reverting this made /dev/dri/card0 reappear. Here is the
> bisection log:
Thanks, i've reverted the commit for now. Could you please send
a 'dmesg' from the bootup with the failed driver? By all
likelyhood an ioremap failure causes a driver failure.
Ingo
next parent reply other threads:[~2009-03-01 11:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090301110455.GA18547@silver.sucs.org>
2009-03-01 11:39 ` Ingo Molnar [this message]
2009-03-01 13:48 ` [TIP,regression,i915] /dev/dri/card0 is no longer present Sitsofe Wheeler
2009-03-02 19:05 ` Pallipadi, Venkatesh
2009-03-02 21:34 ` Ingo Molnar
2009-03-02 21:43 ` Pallipadi, Venkatesh
2009-03-02 22:11 ` Ingo Molnar
2009-03-03 18:24 ` Eric Anholt
2009-03-03 14:50 ` Sitsofe Wheeler
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