| Summary: | [BAT] [SKL] kms_cursor_legacy/2x*vs-flip-legacy failures | ||||||
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| Product: | DRI | Reporter: | Dorota Czaplejewicz <dorota.czaplejewicz> | ||||
| Component: | DRM/Intel | Assignee: | krisman | ||||
| Status: | CLOSED FIXED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | normal | ||||||
| Priority: | medium | CC: | dorota.czaplejewicz, intel-gfx-bugs | ||||
| Version: | unspecified | ||||||
| Hardware: | Other | ||||||
| OS: | All | ||||||
| Whiteboard: | |||||||
| i915 platform: | SKL | i915 features: | |||||
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Something changed between drm-tip: 2017y-03m-13d and 2017y-03m-16d and 2x tests are SKIP now. The system has only 1 VGA screen connected. The tests are passing with config 2362 (32 runs). These tests depend on CONFIG_DETECT_HUNG_TASK configuration. With set to y, I have only seen 1 failure over some 100 runs. I have tested the commits as far back as 4.8.0-rc3, and it doesn't seem to be a regression. Taking over to work on verification and close if possible. (In reply to krisman from comment #5) > Taking over to work on verification and close if possible. Verified on SKL with 2 screens. Issue is easily reproducible with older kernel but didn't trigger in over 100 attempts with more recent kernel. Marking an resolved. Closing old verified. |
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Created attachment 130199 [details] 2x-cursor-vs-flip-legacy log Kernel drm-tip: 2017y-03m-13d-16h-06m-45s, config 2327. CPU: Celeron(R) CPU G3900 GPU: 00:02.0 0300: 8086:1902 (rev 06) (prog-if 00 [VGA controller]) Tests fail about 10% of the time: (kms_cursor_legacy:2860) CRITICAL: Test assertion failure function two_screens_cursor_vs_flip, file kms_cursor_legacy.c:1237: (kms_cursor_legacy:2860) CRITICAL: Failed assertion: shared[child] > vrefresh[child]*target[child] / 2 (kms_cursor_legacy:2860) CRITICAL: completed 1843 cursor updated in a period of 30 flips, we expect to complete approximately 3840 updates, with the threshold set at 1920 Affected: 2x-cursor-vs-flip-legacy 2x-long-cursor-vs-flip-legacy