Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935263AbcKMVdC (ORCPT ); Sun, 13 Nov 2016 16:33:02 -0500 Received: from mout02.posteo.de ([185.67.36.66]:60294 "EHLO mout02.posteo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935048AbcKMVc6 (ORCPT ); Sun, 13 Nov 2016 16:32:58 -0500 Subject: Re: [BUG][REGRESSION] mangled display since -rc1 To: Jani Nikula , Martin Steigerwald References: <87zilb8zp9.fsf@intel.com> <1950398.JsbNW0lAGz@merkaba> <0e7529fa-6f48-fc31-8d25-18a836171d8c@posteo.de> <87h97j8a4q.fsf@intel.com> Cc: Thorsten Leemhuis , Joerg Roedel , Linux kernel , torvalds@linux-foundation.org, daniel.vetter@intel.com From: Martin Kepplinger Message-ID: <8d84af52-489b-508f-d87d-52702713a164@posteo.de> Date: Sun, 13 Nov 2016 22:32:53 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Icedove/45.4.0 MIME-Version: 1.0 In-Reply-To: <87h97j8a4q.fsf@intel.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2040 Lines: 57 Am 2016-11-07 um 18:36 schrieb Jani Nikula: > On Mon, 07 Nov 2016, Martin Kepplinger wrote: >> Am 2016-11-07 um 17:01 schrieb Martin Steigerwald: >>> Hello. >>> >>> Am Montag, 7. November 2016, 16:34:35 CET schrieb Martin Kepplinger: >>>> Chris Clayton wrote off list and the mentioned patch fixes the problem >>>> for me too, as it does for others. I hope it make it's way into the tree >>>> soon: >>> >>> With 4.9-rc4 I have corruptions that look like the ones reported in this >>> thread. >>> >>> I reported my finding on LKML thread about 3.9-rc4. And in Bugzilla in a bug >>> report with an attachment that shows the same type of corruptions as here in >>> this thread: >>> >>> https://patchwork.freedesktop.org/patch/116808/ >>> >>> mentioned in the other bug report and the following LKML thread does not fix >>> the issue for me: >>> >>> Re: [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: >>> Linux 4.9-rc4) >>> https://lkml.org/lkml/2016/11/6/70 >>> >>> https://bugzilla.kernel.org/show_bug.cgi?id=177701#c4 > > That bug conflates two issues, with the main issue being unrelated to > corruption. > >>> In my case it looks like this: >>> >>> https://martin-steigerwald.de/tmp/display-issues-with-kernel-4.9-rc4.png >>> >>> >>> I have a busy week, so I won´t to any bisecting at the moment. I am >>> happy to test another patch during breaks between holding the >>> training, but please point me specifically to what patch to >>> test. Thank you. >> >> this one: I just replaced max with roundup manually: > > As I wrote in another thread, the fix has now been pushed to > drm-intel-fixes branch of http://cgit.freedesktop.org/drm-intel. It's > -rc4 plus half a dozen fixes, including "drm/i915: Round tile chunks up > for constructing partial VMAs" which should fix the corruption. > > Please try that, and report back. If it doesn't fix the issue, please > file a bug at the freedesktop.org bugzilla. > > BR, > Jani. > Fixed in -rc5, thanks! martin