==System Environment== -------------------------- Regression: only failed on -nightly Non-working platforms: BYT ==kernel== -------------------------- origin/drm-intel-nightly: e61f0f00aae3bde8be33766c1b19219ef3a2c708(fails) drm-intel-nightly: 2014y-07m-17d-14h-33m-56s integration manifest origin/drm-intel-next-queued: 7c908fe2cad0c11c509ad9d01e8dce3fa86af85a(skips) drm/i915: extract and improve gen8_irq_power_well_post_enable origin/drm-intel-fixes: c6930992948adf0f8fc1f6ff1da51c5002a2cf95(skips) Revert "drm/i915: reverse dp link param selection, prefer fast over wide again" origin/drm-fixes: bf38b025d3f58f4c1273714ff1be5bfbf99574a4 Merge branch 'drm-fixes-3.16' of git://people.freedesktop.org/~agd5f/linux into drm-fixes origin/drm-next: 62eb3e20f8f3ca9de4a17f87effe534d6a691176（unable to exit） drm/tilcdc: Fix build breakage ==Bug detailed description== igt/kms_universal_plane/universal-plane-pipe-A-functional causes system hang Because system hangs, dmesg unable to catch. Output: root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# time ./kms_universal_plane --run-subtest universal-plane-pipe-A-functional IGT-Version: 1.7-g428060c (x86_64) (Linux: 3.16.0-rc5_drm-intel-nightly_f326cd_20140717+ x86_64) Testing connector eDP-1 using pipe A ==Reproduce steps== ---------------------------- 1. ./kms_universal_plane --run-subtest universal-plane-pipe-A-functional
Created attachment 103377 [details] dmesg
Test on latest -nightly kernel, the hang goes away. ./kms_universal_plane --run-subtest universal-plane-pipe-A-functional IGT-Version: 1.7-g4d2f511 (x86_64) (Linux: 3.17.0-rc1_drm-intel-nightly_257d90_20140822+ x86_64) Testing connector eDP-1 using pipe A Test assertion failure function functional_test_pipe, file kms_universal_plane.c:288: Failed assertion: igt_crc_equal(&test.crc_3, &test.crc_8) Subtest universal-plane-pipe-A-functional: FAIL
Test does not cause system hang on latest -nightly(257d90d13794c2eb545ab0d6c708f21e2a0378b6), but the test fails. I reported bug 83030 to track the failure. close this now.
Closing old verified+fixed.
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