Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757994AbYLDBcu (ORCPT ); Wed, 3 Dec 2008 20:32:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755262AbYLDBci (ORCPT ); Wed, 3 Dec 2008 20:32:38 -0500 Received: from gate.crashing.org ([63.228.1.57]:44671 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754849AbYLDBch (ORCPT ); Wed, 3 Dec 2008 20:32:37 -0500 Subject: Re: [Bug #12158] commit b1ee26b freezes system on switching from X to text console From: Benjamin Herrenschmidt To: Linus Torvalds Cc: "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List , Andrew Morton , "David S. Miller" , Gaudenz Steinlin In-Reply-To: References: Content-Type: text/plain Date: Thu, 04 Dec 2008 12:31:26 +1100 Message-Id: <1228354286.7356.275.camel@pasglop> Mime-Version: 1.0 X-Mailer: Evolution 2.24.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1676 Lines: 38 On Wed, 2008-12-03 at 16:44 -0800, Linus Torvalds wrote: > > On Wed, 3 Dec 2008, 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 2.6.27. Please verify if it still should be listed and let me know > > (either way). > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12158 > > Subject : commit b1ee26b freezes system on switching from X to text console > > Submitter : Gaudenz Steinlin > > Date : 2008-11-25 19:44 (9 days old) > > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b1ee26bab14886350ba12a5c10cbc0696ac679bf > > References : http://marc.info/?l=linux-kernel&m=122764344231140&w=4 > > Handled-By : Benjamin Herrenschmidt > > I think we're assuming that this already got fixed by commit > c4c6fa9891f3d1bcaae4f39fb751d5302965b566 ("radeonfb: fix problem with > color expansion & alignment"). No, this is a different problem I think. That race between VT switch and X, which I -suspect- may be an X bug. I haven't managed to pin it down yet, so what I may do for .28 is send a patch that disables color expansion acceleration unless you explicitely request it via a module param. At least until I can find what's going on. Cheers, Ben. -- 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/