Created attachment 106414 [details] dmesg ==System Environment== -------------------------- Regression: Yes. Good commit on -next-queued: a2ca46441decdcdf4010f1db8a7041c8851327b3 Non-working platforms: BDW ==kernel== -------------------------- origin/drm-intel-nightly:ab7f1ab9c4d1c8af46517d60e54eeda9d8673f6a(fails) drm-intel-nightly: 2014y-09m-16d-09h-02m-41s UTC integration manifest origin/drm-intel-next-queued:889dc7e960acde076491806d27e068b391c4a47a(fails) drm/i915: Use EIO instead of EAGAIN for sink CRC error. origin/drm-intel-fixes: d72985765e986f45a28f87d75f3f0ece489b04cc(fails) drm/i915: Add limited color range readout for HDMI/DP ports on g4x/vlv/chv ==Bug detailed description== ----------------------------- igt/kms_flip subcases fail Case list: igt/kms_flip/absolute-wf_vblank igt/kms_flip/absolute-wf_vblank-interruptible igt/kms_flip/blocking-absolute-wf_vblank igt/kms_flip/blocking-wf_vblank igt/kms_flip/busy-flip igt/kms_flip/dpms-vs-vblank-race igt/kms_flip/flip-vs-absolute-wf_vblank igt/kms_flip/flip-vs-absolute-wf_vblank-interruptible igt/kms_flip/flip-vs-blocking-wf-vblank igt/kms_flip/flip-vs-wf_vblank igt/kms_flip/flip-vs-wf_vblank-interruptible igt/kms_flip/modeset-vs-vblank-race igt/kms_flip/vblank-vs-hang-interruptible igt/kms_flip/wf_vblank igt/kms_flip/wf_vblank-interruptible igt/kms_flip/wf_vblank-ts-check igt/kms_flip/wf_vblank-ts-check-interruptible Output: root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip --run-subtest absolute-wf_vblank-interruptible IGT-Version: 1.8-g137877f (x86_64) (Linux: 3.17.0-rc5_drm-intel-nightly_ab7f1a_20140917+ x86_64) Using monotonic timestamps Beginning absolute-wf_vblank-interruptible on crtc 8, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. absolute-wf_vblank-interruptible on crtc 8, connector 19: PASSED Beginning absolute-wf_vblank-interruptible on crtc 12, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 .Test assertion failure function wait_for_events, file kms_flip.c:1172: Failed assertion: ret > 0 Last errno: 4, Interrupted system call select timed out or error (ret 0) Subtest absolute-wf_vblank-interruptible: FAIL (14.457s) ==Reproduce steps== ---------------------------- 1. ./kms_flip --run-subtest absolute-wf_vblank-interruptible
I tested this, and for me, patch "drm/i915: properly reenable gen8 pipe IRQs" fixes this problem. The patch is already merged, so I'm closing the bug. If you think it still happens, please feel free to reopen the bug.
Verified on latest -nightly(ead7d71357628dc1231535886ec09853e9164d6d) root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip --run-subtest absolute-wf_vblank-interruptible IGT-Version: 1.8-gb7d80d1 (x86_64) (Linux: 3.17.0_drm-intel-nightly_ead7d7_20141013+ x86_64) Using monotonic timestamps Beginning absolute-wf_vblank-interruptible on crtc 8, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. absolute-wf_vblank-interruptible on crtc 8, connector 19: PASSED Beginning absolute-wf_vblank-interruptible on crtc 12, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. absolute-wf_vblank-interruptible on crtc 12, connector 19: PASSED Beginning absolute-wf_vblank-interruptible on crtc 16, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. absolute-wf_vblank-interruptible on crtc 16, connector 19: PASSED Subtest absolute-wf_vblank-interruptible: SUCCESS (33.100s)
Closing old verified.
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