From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: Re: [git pull] drm fixes for -rc1 Date: Mon, 28 Mar 2011 20:09:13 +0100 Message-ID: <849307$c6tdto@azsmga001.ch.intel.com> References: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Pekka Enberg , Dave Airlie Cc: torvalds@linux-foundation.org, DRI mailing list , linux-kernel@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org On Mon, 28 Mar 2011 21:53:32 +0300, Pekka Enberg w= rote: > On Mon, Mar 28, 2011 at 9:43 PM, Pekka Enberg wr= ote: > > On Thu, Mar 24, 2011 at 1:34 PM, Dave Airlie wro= te: > >> It should have the fix for your i915 in the intel patches, along w= ith > >> a couple of radeon fixes, and the vblank change + fix. > > > > I'm seeing some laptop screen flicker during boot and a while after= I > > log in (it then seems to go away). It's my trusty old Macbook with > > i915 and Ubuntu 10.04. I see this in dmesg: > > > > [ =C2=A0 =C2=A01.782046] [drm] initialized overlay support > > [ =C2=A0 =C2=A01.782075] [drm] capturing error event; look for more= information > > in /debug/dri/0/i915_error_state > > [ =C2=A0 =C2=A01.782889] render error detected, EIR: 0x00000010 > > [ =C2=A0 =C2=A01.782933] page table error > > [ =C2=A0 =C2=A01.782970] =C2=A0 PGTBL_ER: 0x00000102 > > [ =C2=A0 =C2=A01.783009] [drm:i915_report_and_clear_eir] *ERROR* EI= R stuck: > > 0x00000010, masking > > [ =C2=A0 =C2=A01.783063] render error detected, EIR: 0x00000010 > > [ =C2=A0 =C2=A01.783106] page table error > > [ =C2=A0 =C2=A01.783143] =C2=A0 PGTBL_ER: 0x00000102 > > > > I'm attaching the full dmesg, i915_error_state, and .config. Right, looks like we have an issue with setting up the hardware for KMS/GEM whilst it is still active. As we disable the outputs anyway for the KMS takeover, we can arrange to do so first and so prevent this bug= =2E The side-effect will be that initial screen blanking will last a little bit longer. > I'm also seeing these errors now which seem to be new from 2.6.38-fin= al: >=20 > [ 437.566022] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a > purgeable buffer > [ 437.566187] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a > purgeable buffer > [ 437.566232] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a > purgeable buffer > [ 437.566275] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a > purgeable buffer > [ 437.566318] [drm:i915_gem_mmap_gtt] *ERROR* Attempting to mmap a > purgeable buffer That's an old userspace bug, which so far no one has been able to reproduce on the upstream ddx. -Chris --=20 Chris Wilson, Intel Open Source Technology Centre