From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758947AbZBDXu5 (ORCPT ); Wed, 4 Feb 2009 18:50:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759242AbZBDXtN (ORCPT ); Wed, 4 Feb 2009 18:49:13 -0500 Received: from gate.crashing.org ([63.228.1.57]:58295 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759204AbZBDXtL (ORCPT ); Wed, 4 Feb 2009 18:49:11 -0500 Subject: Re: [Bug #12608] 2.6.29-rc powerpc G5 Xorg legacy_mem regression From: Benjamin Herrenschmidt To: "Rafael J. Wysocki" Cc: Linux Kernel Mailing List , Kernel Testers List , Hugh Dickins , Jesse Barnes In-Reply-To: References: Content-Type: text/plain Date: Thu, 05 Feb 2009 10:48:49 +1100 Message-Id: <1233791329.4612.23.camel@pasglop> Mime-Version: 1.0 X-Mailer: Evolution 2.24.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2009-02-04 at 11:24 +0100, Rafael J. Wysocki wrote: > This message has been generated automatically as a part of a report > of recent regressions. > > The following bug entry is on the current list of known regressions > from 2.6.28. Please verify if it still should be listed and let me know > (either way). I still don't know what's the best way to handle that one... the bug is in X and I don't see a way to work around it without removing support for legacy memory access from the kernel :-( Or doing it in a way that doesn't allow userspace to differenciate between the kernel not supporting it vs. the HW not supporting it, causing X to fallback to even more broken crap. I'll try to find out the extent of the X problem and whether that's fixable in a way that can hit distros. > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12608 > Subject : 2.6.29-rc powerpc G5 Xorg legacy_mem regression > Submitter : Hugh Dickins > Date : 2009-01-21 21:12 (15 days old) > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d3a54014e2a94bd37b7dee5e76e03f7bc4fab49a > References : http://marc.info/?l=linux-kernel&m=123257250431870&w=4 > Handled-By : Benjamin Herrenschmidt >