From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757962AbcEFGhS (ORCPT ); Fri, 6 May 2016 02:37:18 -0400 Received: from mail-wm0-f68.google.com ([74.125.82.68]:33366 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751773AbcEFGhQ (ORCPT ); Fri, 6 May 2016 02:37:16 -0400 Date: Fri, 6 May 2016 08:37:14 +0200 From: Daniel Vetter To: Stefan Richter Cc: Paulo Zanoni , Daniel Vetter , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Dave Airlie Subject: Re: Regression of v4.6-rc vs. v4.5 bisected: a98ee79317b4 "drm/i915/fbc: enable FBC by default on HSW and BDW" Message-ID: <20160506063714.GR1286@phenom.ffwll.local> Mail-Followup-To: Stefan Richter , Paulo Zanoni , Daniel Vetter , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Dave Airlie References: <20160426210008.2f79fcdf@kant> <20160429100741.6be95385@kant> <20160430155154.597829ca@kant> <20160505194506.63b9c113@kant> <20160505224531.07474445@kant> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160505224531.07474445@kant> X-Operating-System: Linux phenom 4.6.0-rc5+ User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 05, 2016 at 10:45:31PM +0200, Stefan Richter wrote: > On May 05 Stefan Richter wrote: > > Quoting the changelog of the commit: > [...] > > - Download intel-gpu-tools, compile it, and run: > > $ sudo ./tests/kms_frontbuffer_tracking --run-subtest '*fbc-*' 2>&1 | tee fbc.txt > > Then send us the fbc.txt file, especially if you get a failure. > > Attached are results of kms_frontbuffer_tracking from current > intel-gpu-tools.git (intel-gpu-tools-1.14-273-gb4b2ac346c92), taken on > kernel v4.5.2 and on v4.6-rc5. > Subtest fbc-1p-primscrn-spr-indfb-fullscreen failed. > **** DEBUG **** > (kms_frontbuffer_tracking:2266) DEBUG: Test requirement passed: fbc.can_test > (kms_frontbuffer_tracking:2266) drmtest-DEBUG: Test requirement passed: is_i915_device(fd) && has_known_intel_chipset(fd) > (kms_frontbuffer_tracking:2266) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=2560, height=1440, format=0x34325258, tiling=0x100000000000001, size=14745600) > (kms_frontbuffer_tracking:2266) drmtest-DEBUG: Test requirement passed: is_i915_device(fd) && has_known_intel_chipset(fd) > (kms_frontbuffer_tracking:2266) drmtest-DEBUG: Test requirement passed: is_i915_device(fd) && has_known_intel_chipset(fd) > (kms_frontbuffer_tracking:2266) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=7, pitch=10240) > (kms_frontbuffer_tracking:2266) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5 > (kms_frontbuffer_tracking:2266) DEBUG: Rect 0 CRC: pipe:[febb8b20 00000000 00000000 00000000 00000000] sink:[unsupported!] > (kms_frontbuffer_tracking:2266) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5 > (kms_frontbuffer_tracking:2266) DEBUG: Calculated CRC: pipe:[2ca73d01 00000000 00000000 00000000 00000000] sink:[unsupported!] > (kms_frontbuffer_tracking:2266) DEBUG: Test requirement passed: !fbc_not_enough_stolen() > (kms_frontbuffer_tracking:2266) DEBUG: Calculated CRC: pipe:[2ca73d01 00000000 00000000 00000000 00000000] sink:[unsupported!] > (kms_frontbuffer_tracking:2266) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5 > (kms_frontbuffer_tracking:2266) DEBUG: Calculated CRC: pipe:[2ca73d01 00000000 00000000 00000000 00000000] sink:[unsupported!] > (kms_frontbuffer_tracking:2266) DEBUG: Test requirement passed: !fbc_not_enough_stolen() > (kms_frontbuffer_tracking:2266) DEBUG: Calculated CRC: pipe:[2ca73d01 00000000 00000000 00000000 00000000] sink:[unsupported!] > (kms_frontbuffer_tracking:2266) drmtest-DEBUG: Test requirement passed: is_i915_device(fd) && has_known_intel_chipset(fd) > (kms_frontbuffer_tracking:2266) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=2560, height=1440, format=0x34325258, tiling=0x100000000000001, size=14745600) > (kms_frontbuffer_tracking:2266) drmtest-DEBUG: Test requirement passed: is_i915_device(fd) && has_known_intel_chipset(fd) > (kms_frontbuffer_tracking:2266) drmtest-DEBUG: Test requirement passed: is_i915_device(fd) && has_known_intel_chipset(fd) > (kms_frontbuffer_tracking:2266) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=7, pitch=10240) > (kms_frontbuffer_tracking:2266) DEBUG: Calculated CRC: pipe:[febb8b20 00000000 00000000 00000000 00000000] sink:[unsupported!] > (kms_frontbuffer_tracking:2266) DEBUG: Test requirement passed: !fbc_not_enough_stolen() > (kms_frontbuffer_tracking:2266) DEBUG: Calculated CRC: pipe:[febb8b20 00000000 00000000 00000000 00000000] sink:[unsupported!] > (kms_frontbuffer_tracking:2266) igt-core-INFO: Timed out: CRC reading > **** END **** > Timed out: CRC reading > Subtest fbc-1p-primscrn-spr-indfb-fullscreen: FAIL (5.876s) This one failed in both runs. Can you please retest with just that using # kms_frontbuffer_tracking --run-subtest fbc-1p-primscrn-spr-indfb-fullscreen Also please boot with drm.debug=0xe and grab the full dmesg of just that single subtest. There's definitely something going wrong here. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch