Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932631Ab0KLUHE (ORCPT ); Fri, 12 Nov 2010 15:07:04 -0500 Received: from mail.fem.tu-ilmenau.de ([141.24.101.79]:59530 "EHLO mail.fem.tu-ilmenau.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932392Ab0KLUHA (ORCPT ); Fri, 12 Nov 2010 15:07:00 -0500 From: Johannes Hirte To: Florian Mickler Subject: Re: [bisected] i915 regression in post 2.6.36 kernels Date: Fri, 12 Nov 2010 21:08:34 +0100 User-Agent: KMail/1.13.5 (Linux/2.6.36; KDE/4.5.3; i686; ; ) Cc: Chris Wilson , Linux Kernel Mailing List References: <201011100802.20332.johannes.hirte@fem.tu-ilmenau.de> <201011102339.36590.johannes.hirte@fem.tu-ilmenau.de> <20101112192046.1c38e671@schatten.dmk.lab> In-Reply-To: <20101112192046.1c38e671@schatten.dmk.lab> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201011122108.35664.johannes.hirte@fem.tu-ilmenau.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2554 Lines: 53 On Friday 12 November 2010 19:20:46 Florian Mickler wrote: > On Wed, 10 Nov 2010 23:39:35 +0100 > Johannes Hirte wrote: > > > On Wednesday 10 November 2010 08:46:40 Chris Wilson wrote: > > > On Wed, 10 Nov 2010 08:02:19 +0100, Johannes Hirte wrote: > > > > With the latest kernel, I don't get any windows in KDE displayed. After > > > > starting kdm, I get the background picture and the mouse cursor but not the > > > > login window. I can login blindly and a ps on console shows me that the > > > > expected KDE processes are started but still nothing is displayed. > > > > I've bisected this to: > > > > > > > > 5c12a07e8073295ce8b57a822f811ac34e4f8420 is the first bad commit > > > > commit 5c12a07e8073295ce8b57a822f811ac34e4f8420 > > > > Author: Chris Wilson > > > > Date: Wed Sep 22 11:22:30 2010 +0100 > > > > > > > > drm/i915: Drop ring->lazy_request > > > > > > > > We are not currently using it as intended, so remove the complication. > > > > > > > > Signed-off-by: Chris Wilson > > > > > > May I ask you to recheck your bisection, since that was later reverted. > > > -Chris > > > > Did so. I've started with v2.6.36 for bisect good and > > f6614b7bb405a9b35dd28baea989a749492c46b2 for bisect bad (was HEAD) in this > > case. Again I ended in 5c12a07e8073295ce8b57a822f811ac34e4f8420 as the first > > bad commit. The regression was introduced there, as the commit before is fine. > > If it was reverted, the regression should be fixed by this. But I don't find > > neither the fix/revert nor the reintroduction of the regression. > > > > regrards, > > Johannes > > The revert is a56ba56c275b1c2b982c8901ab92bf5a0fd0b757 . Thanks for the hint. This was the commit I was searching for. Unfortunately this version shows the same regression. I've checked again, that 5c12a07e8073295ce8b57a822f811ac34e4f8420 is the first bad version. 2.6.36-rc5-00228-g2896b53 (2896b5397570f6857fd5d0e0533f640b05b1d162) works 2.6.36-rc5-00229-g5c12a07 (5c12a07e8073295ce8b57a822f811ac34e4f8420) doesn't. Someone with knowledge of the code should have a look what's different between 5c12a07e8073295ce8b57a822f811ac34e4f8420 and its revert. regards, Johannes -- 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/