Created attachment 102738 [details] dmesg ==System Environment== -------------------------- Regression: Yes It's a igt regression issue Good commit on igt: 6b986a2044a2708f900454d7e23fcd0bbf68879d Bad commit on igt: e74dd22ff89e007e637f16f661f06d4857a54224 Non-working platforms: BDW ==kernel== -------------------------- origin/drm-intel-nightly: 271bff129a641b5b35d99c9eb0ceb866ca42f692(fails) drm-intel-nightly: 2014y-07m-12d-12h-07m-51s integration manifest origin/drm-intel-next-queued: 491a3448622059b087d8c465b46b11f2953df7c1(fails) drm/i915: Enable PSR by default. origin/drm-intel-fixes: ceb9f032dc858c349d7d213454c5ba2c6ef9c5e5(fails) Revert "drm/i915: Don't set the 8to6 dither flag when not scaling" ==Bug detailed description== igt/kms_flip/bcs-flip-vs-dpms fails Output: root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip --run-subtest bcs-flip-vs-dpms IGT-Version: 1.7-ge74dd22 (x86_64) (Linux: 3.16.0-rc4_drm-intel-next-queued_491a34_20140714+ x86_64) Using monotonic timestamps Beginning bcs-flip-vs-dpms on crtc 6, connector 17 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ..Test assertion failure function check_state, file kms_flip.c:557: Failed assertion: timercmp(&es->last_received_ts, &es->current_ts, <) flip ts before the flip was issued! timerdiff -2280s, 291945us Subtest bcs-flip-vs-dpms: FAIL Test assertion failure function igt_install_exit_handler, file igt_core.c:1084: Failed assertion: exit_handler_count < MAX_EXIT_HANDLERS kms_flip: igt_core.c:655: igt_fail: Assertion `!test_with_subtests || in_fixture' failed. Test assertion failure function kmstest_force_connector, file igt_kms.c:461: Failed assertion: debugfs_fd != -1 Last errno: 2, No such file or directory kms_flip: igt_core.c:655: igt_fail: Assertion `!test_with_subtests || in_fixture' failed. Aborted root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# echo $? 134 ==Reproduce steps== ---------------------------- 1. ./kms_flip --run-subtest bcs-flip-vs-dpms
This bug still able to reproduce on latest -nightly(77820625217fa547586f00be7cae56e5c5e255bf) ./kms_flip --run-subtest vblank-vs-hang IGT-Version: 1.7-g428060c (x86_64) (Linux: 3.16.0-rc5_drm-intel-nightly_778206_20140716_debug+ x86_64) Using monotonic timestamps Beginning vblank-vs-hang on crtc 7, connector 18 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. vblank-vs-hang on crtc 7, connector 18: PASSED Beginning vblank-vs-hang on crtc 11, connector 18 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. vblank-vs-hang on crtc 11, connector 18: PASSED Beginning vblank-vs-hang on crtc 15, connector 18 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. vblank-vs-hang on crtc 15, connector 18: PASSED Subtest vblank-vs-hang: SUCCESS Test assertion failure function igt_install_exit_handler, file igt_core.c:1086: Failed assertion: exit_handler_count < MAX_EXIT_HANDLERS kms_flip: igt_core.c:657: igt_fail: Assertion `!test_with_subtests || in_fixture' failed. Aborted (core dumped)
Bisect shows: eef768f283466b6d7cb3f08381f72ccf3951dc99 is the first bad commit. commit eef768f283466b6d7cb3f08381f72ccf3951dc99 Author: Thomas Wood <thomas.wood@intel.com> AuthorDate: Wed Jun 18 14:28:43 2014 +0100 Commit: Thomas Wood <thomas.wood@intel.com> CommitDate: Fri Jul 11 11:47:46 2014 +0100 tests: enable extra connectors in kms_flip and kms_pipe_crc_basic Signed-off-by: Thomas Wood <thomas.wood@intel.com>
Fixed by commit 8a3853c core: increase the exit handler limit.
(In reply to comment #3) > Fixed by commit 8a3853c core: increase the exit handler limit. Test doesn't causes crash on latest -nightly(8734408c113bb38234ed03ec51c723b3deff579b). But the result still failed. bug 79052 tracks the fail. root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip --run-subtest bcs-flip-vs-dpms IGT-Version: 1.7-g4d4f4b2 (x86_64) (Linux: 3.16.0-rc5_drm-intel-nightly_873440_20140721_debug+ x86_64) Using monotonic timestamps Beginning bcs-flip-vs-dpms on crtc 7, connector 18 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ..Test assertion failure function check_state, file kms_flip.c:557: Failed assertion: timercmp(&es->last_received_ts, &es->current_ts, <) flip ts before the flip was issued! timerdiff -321s, 377867us Subtest bcs-flip-vs-dpms: FAIL
Closing old verified.
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