Created attachment 107651 [details] dmesg ==System Environment== -------------------------- Regression: Yes. It's a igt regression issue Good commit:764772c3c8059a6a9d1a569d9c4bd180e11c4d33 Bad commit:b7d80d104758fb4c90723246aed943c0097c6156 Non-working platforms: BYT ==kernel== -------------------------- origin/drm-intel-nightly: ea4bec8e96ea8b33b49a7892c1c7f20041a56da6(fails) drm-intel-nightly: 2014y-10m-09d-07h-58m-45s UTC integration manifest origin/drm-intel-next-queued: a128efeaa64609a9672b51bb37bb703e1b0f0128(fails) drm/i915: Suppress no action noise from oom shrinker origin/drm-intel-fixes: bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9(fails) Linux 3.17 ==Bug detailed description== igt/kms_flip_tiling/flip-changes-tiling fails Output: root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip_tiling --run-subtest flip-changes-tiling IGT-Version: 1.8-g7f82289 (x86_64) (Linux: 3.17.0_drm-intel-nightly_ea4bec_20141010+ x86_64) Test assertion failure function test_flip_changes_tiling, file kms_flip_tiling.c:110: Failed assertion: igt_crc_equal(&reference_crc, &crc) Subtest flip-changes-tiling: FAIL (1.364s) ==Reproduce steps== ---------------------------- 1. ./kms_flip_tiling --run-subtest flip-changes-tiling
af79fce66d023b300f308ec78289c616c81037d3 is the first bad commit Author: Damien Lespiau <damien.lespiau@intel.com> AuthorDate: Mon Oct 6 18:23:33 2014 +0100 Commit: Damien Lespiau <damien.lespiau@intel.com> CommitDate: Mon Oct 6 18:52:06 2014 +0100 overlay: Fix compilation warning when not having xrandr Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> :040000 040000 5a03db3015dd502aff621f5dc3369e571d71cfb1 0ae9bcbcdb508e21848ef8f8bdbce313de04450d M overlay
That's an incorrect bisect.
(In reply to Chris Wilson from comment #2) > That's an incorrect bisect. Sorry, I checked it again, it's an unstable issue.
Test on latest -nightly kernel, it sporadically fails. root@x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip_tiling --run-subtest flip-changes-tiling IGT-Version: 1.9-geb799b2 (x86_64) (Linux: 3.18.0_drm-intel-nightly_4fa231_20141229+ x86_64) Test assertion failure function test_flip_changes_tiling, file kms_flip_tiling.c:113: Failed assertion: igt_crc_equal(&reference_crc, &crc) Subtest flip-changes-tiling: FAIL (0.244s)
also this two cases failing on SKL-Y with the following kernel : Kernel commit log: commit b4c4542ba1abfb0d3d6913504502573bf2c62b12 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Fri Aug 28 15:51:30 2015 +0200 drm-intel-nightly: 2015y-08m-28d-13h-50m-34s UTC integration manifest subtest - kms_flip_tiling@flip-changes-tiling-y subtest - kms_flip_tiling@flip-changes-tiling-yf
Reproduced on HSW with the latest configuration: Configuration : --------------------------------------------- kernel: 4.3.0-rc4-drm-intel-testing-2015-10-10 xorg-server-1.17.2 libdrm-2.4.65 xf86-video-intel-2.99.917 mesa-11.0.2 libva-1.6.1 intel-driver-1.6.1 cairo-1.14.2 IGT Version : 1.12-g1f9e055
the test executed are passing in SKL reviewed in ww07 results from IGT ALL
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