<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BYT]igt/kms_flip some subcases cause "WARNING: CPU: 0 PID: 4384 at drivers/gpu/drm/i915/intel_display.c:1746 valleyview_crtc_enable+0x9e4/0xaee [i915]()"" href="https://bugs.freedesktop.org/show_bug.cgi?id=84074#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BYT]igt/kms_flip some subcases cause "WARNING: CPU: 0 PID: 4384 at drivers/gpu/drm/i915/intel_display.c:1746 valleyview_crtc_enable+0x9e4/0xaee [i915]()"" href="https://bugs.freedesktop.org/show_bug.cgi?id=84074">bug 84074</a> from <a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> Guo Jinxian</a> <pre>The failure is able to reproduce on IVB while running tests below 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/wf_vblank-ts-check igt/kms_flip/wf_vblank-ts-check-interruptible [root@x-ivb9 tests]# ./kms_flip --run-subtest wf_vblank-ts-check IGT-Version: 1.8-gbba1cd0 (x86_64) (Linux: 3.17.0_drm-intel-nightly_8d1dbe_20141020_debug+ x86_64) Using monotonic timestamps Beginning wf_vblank-ts-check on crtc 8, connector 18 1680x1050 60 1680 1784 1960 2240 1050 1053 1059 1089 0x6 0x48 146250 ..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, 165943us Subtest wf_vblank-ts-check: FAIL (1.462s)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>