Created attachment 108085 [details] dmesg ==System Environment== -------------------------- Regression: Yes. It's a igt regression bug Good commit: e11b7100c9c8d4e74a4d4439b1519ea50741fda5 Bud commit: bba1cd0091b3e8e987f15dac1f38d233b5b0ee78 Non-working platforms: IVB BDW ==kernel== -------------------------- origin/drm-intel-nightly: 8d1dbeed28a28ecf964769bf089503f0c90ffdaa(fails) drm-intel-nightly: 2014y-10m-19d-14h-54m-38s UTC integration manifest origin/drm-intel-next-queued: 6476486cb3570d3662e4a3870b884e75d35d1072(fails) drm/i915: Document that mmap forwarding is discouraged origin/drm-intel-fixes: bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9(fails) Linux 3.17 ==Bug detailed description== igt/kms_flip some subcases fail Case list: igt/kms_flip/blocking-wf_vblank 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/plain-flip-fb-recreate igt/kms_flip/plain-flip-fb-recreate-interruptible igt/kms_flip/plain-flip-ts-check igt/kms_flip/plain-flip-ts-check-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 blocking-wf_vblank IGT-Version: 1.8-gbba1cd0 (x86_64) (Linux: 3.17.0_drm-intel-nightly_8d1dbe_20141020+ x86_64) Using monotonic timestamps Beginning blocking-wf_vblank on crtc 8, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ..Test assertion failure function check_state, file kms_flip.c:585: Failed assertion: fabs((((double) diff.tv_usec) - usec_interflip) / usec_interflip) <= 0.005 inter-vblank ts jitter: 0s, 166664us Subtest blocking-wf_vblank: FAIL (1.442s) ==Reproduce steps== ---------------------------- 1. ./kms_flip --run-subtest blocking-wf_vblank
Created attachment 108104 [details] [review] lib: fix #define max
(In reply to Mika Kuoppala from comment #1) > Created attachment 108104 [details] [review] [review] > lib: fix #define max Test passes with this patch. root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip --run-subtest blocking-wf_vblank IGT-Version: 1.8-gd58b5a4 (x86_64) (Linux: 3.17.0_drm-intel-nightly_1361e3_20141018+ x86_64) Using monotonic timestamps Beginning blocking-wf_vblank on crtc 8, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. blocking-wf_vblank on crtc 8, connector 19: PASSED Beginning blocking-wf_vblank on crtc 12, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. blocking-wf_vblank on crtc 12, connector 19: PASSED Beginning blocking-wf_vblank on crtc 16, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. blocking-wf_vblank on crtc 16, connector 19: PASSED Subtest blocking-wf_vblank: SUCCESS (36.010s)
It impacts all platforms.
Verified on latest igt eae9f724f2335d8b44ef884e24b1590c3b0a3a33 root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip --run-subtest blocking-wf_vblank IGT-Version: 1.8-geae9f72 (x86_64) (Linux: 3.18.0-rc1_drm-intel-nightly_77683b_20141023+ x86_64) Using monotonic timestamps Beginning blocking-wf_vblank on crtc 8, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. blocking-wf_vblank on crtc 8, connector 19: PASSED Beginning blocking-wf_vblank on crtc 12, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. blocking-wf_vblank on crtc 12, connector 19: PASSED Beginning blocking-wf_vblank on crtc 16, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 ............................................................. blocking-wf_vblank on crtc 16, connector 19: PASSED Subtest blocking-wf_vblank: SUCCESS (36.017s)
Closing old verified.
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