linux-kernel - "Can not ioremap virtual address" (was Re: [git pull] drm)

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Message-Id: <200902131828.22680.diegocg@gmail.com>
Date:	Fri, 13 Feb 2009 18:28:22 +0100
From:	Diego Calleja <diegocg@...il.com>
To:	Dave Airlie <airlied@...ux.ie>
Cc:	torvalds@...ux-foundation.org, dri-devel@...ts.sf.net,
	linux-kernel@...r.kernel.org, Eric Anholt <eric@...olt.net>,
	Matthew Garrett <mjg59@...f.ucam.org>
Subject: "Can not ioremap virtual address" (was Re: [git pull] drm)

On Lunes 09 Febrero 2009 09:30:57 Dave Airlie escribió:
> Hi Linus,
>
> Please pull the 'drm-fixes' branch from
> ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git
> drm-fixes

A commit from this merge is causing an error in my machine:

commit ab657db12d7020629f26f30d287558a8d0e32b41
Author: Eric Anholt <eric@...olt.net>
Date:   Fri Jan 23 12:57:47 2009 -0800

    drm/i915: Set up an MTRR covering the GTT at driver load.


(found using bisection)

The error:
[   20.270956] [drm] Initialized i915 1.6.0 20080730 on minor 0
[   20.289492] [drm:i915_initialize] *ERROR* can not ioremap virtual address 
for ring buffer

And in Xorg.0.log: (II) intel(0): direct rendering: Failed


But...excluding that printk, everything works OK, including "direct rendering: 
Yes"...

There's a related thread here: http://lkml.org/lkml/2009/2/13/139

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