Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754192AbZCKW5R (ORCPT ); Wed, 11 Mar 2009 18:57:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751730AbZCKW5D (ORCPT ); Wed, 11 Mar 2009 18:57:03 -0400 Received: from mx2.redhat.com ([66.187.237.31]:55250 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751095AbZCKW5B (ORCPT ); Wed, 11 Mar 2009 18:57:01 -0400 Subject: Re: X/gnome hang on EeePC with DRM and PAE From: Dave Airlie To: "Pallipadi, Venkatesh" Cc: linux-kernel@vger.kernel.org, jbarnes@virtuousgeek.org, eric@anholt.net In-Reply-To: <1236811716.4529.70.camel@localhost.localdomain> References: <1236811716.4529.70.camel@localhost.localdomain> Content-Type: text/plain Date: Thu, 12 Mar 2009 08:56:49 +1000 Message-Id: <1236812210.22993.2.camel@clockmaker.usersys.redhat.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4398 Lines: 100 On Wed, 2009-03-11 at 15:48 -0700, Pallipadi, Venkatesh wrote: > X/gnome hangs on my EeePC (900HA) with latest git kernel when PAE is > enabled. X seems to start OK. I see the login screen and after entering > the password, I see initial gnome loading with desktop icons and stuff > and the desktops refreshed after a couple of seconds with complete white > background. I only see the mouse pointer on desktop which I can move > around. The system is alive in general and ssh-able. I see no errors in > dmesg. Attached is the config that reproduces the problem for me. I have > FC10 userspace. > > If I disable PAE from this config, things work fine. > > Initially, I saw the problem with latest git. But, I later saw the same > problem with .28 as well. Rolling back further, the problem was not > present in 2.6.28-rc3 and git bisect narrowed this regression to below > commit. Go further back maybe before the GEM merge and see if its still broken. All this commit did was disable GEM when PAE is enabled, so I suspect it was broken pre-GEM, and GEM sort of worked. Dave. > > Thanks, > Venki > > > ac5c4e76180a74c7f922f6fa71ace0cef45fa433 is first bad commit > commit ac5c4e76180a74c7f922f6fa71ace0cef45fa433 > Author: Dave Airlie > Date: Fri Dec 19 15:38:34 2008 +1000 > > drm/i915: GEM on PAE has problems - disable it for now. > > On PAE systems, GEM allocates pages using shmem, and passes these > pages to be bound into AGP, however the AGP interfaces + the x86 > set_memory interfaces all take unsigned long not dma_addr_t. > > The initial fix for this was a mess, so we need to do this correctly > for 2.6.29. > > Signed-off-by: Dave Airlie > > :040000 040000 d468c858e0cf3f8b7f100004ed767cf7c005deef > 8dfa48f29e9685f4cf2dd9b6655b21ec92525171 M drivers > > > git bisect start > # good: [45beca08dd8b6d6a65c5ffd730af2eac7a2c7a03] Linux v2.6.28-rc3 > git bisect good 45beca08dd8b6d6a65c5ffd730af2eac7a2c7a03 > # bad: [4a6908a3a050aacc9c3a2f36b276b46c0629ad91] Linux 2.6.28 > git bisect bad 4a6908a3a050aacc9c3a2f36b276b46c0629ad91 > # good: [ee11940f8e7a2f064af22d52180cb5f9643eef61] cirrusfb: remove > unused variables > git bisect good ee11940f8e7a2f064af22d52180cb5f9643eef61 > # good: [e1825e7515010053e44287e6e78f9078cd1916a9] Merge > git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 > git bisect good e1825e7515010053e44287e6e78f9078cd1916a9 > # good: [061afe9fe1a295ef950cf7e6c92fa7d4ae226f28] Merge branch > 'release' of > git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 > git bisect good 061afe9fe1a295ef950cf7e6c92fa7d4ae226f28 > # good: [3797455fd269f6ae0bc228d5206b502830af03f4] Merge > git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 > git bisect good 3797455fd269f6ae0bc228d5206b502830af03f4 > # bad: [8837e341cc76372716b1576dd88fbf832acd29d4] Merge branch > 'for-linus' of > git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 > git bisect bad 8837e341cc76372716b1576dd88fbf832acd29d4 > # good: [69098bac169d630a777b362470f20451b9446e39] Merge branch 'fixes' > of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6 > git bisect good 69098bac169d630a777b362470f20451b9446e39 > # good: [db873cfc7c0a6f34ab0f1c811fc245273adf35af] Merge branch > 'for-linus' of git://neil.brown.name/md > git bisect good db873cfc7c0a6f34ab0f1c811fc245273adf35af > # good: [5bd9c69649754cd4b1a96cdbe5caa4e5d1d35eb5] Merge branch > 'fix/asoc' into for-linus > git bisect good 5bd9c69649754cd4b1a96cdbe5caa4e5d1d35eb5 > # bad: [f3485c82f75eeb951162dda663f45714627a85f5] Merge branch > 'drm-fixes' of > git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 > git bisect bad f3485c82f75eeb951162dda663f45714627a85f5 > # bad: [ac5c4e76180a74c7f922f6fa71ace0cef45fa433] drm/i915: GEM on PAE > has problems - disable it for now. > git bisect bad ac5c4e76180a74c7f922f6fa71ace0cef45fa433 > # good: [c4de0a5d671e3af38dc3496538e391782aecc3a5] drm/i915: Don't > return busy for buffers left on the flushing list. > git bisect good c4de0a5d671e3af38dc3496538e391782aecc3a5 > > > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/