| Summary: | [BYT/BSW]igt/drv_debugfs_reader sporadically causes *ERROR* Panel is unable to calculate CRC after 6 vblanks | ||||||
|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | lu hua <huax.lu> | ||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Status: | CLOSED FIXED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | normal | ||||||
| Priority: | medium | CC: | intel-gfx-bugs, jinxianx.guo | ||||
| Version: | unspecified | ||||||
| Hardware: | All | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
| Attachments: |
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I reproduce this error on BSW. It happens 1 in 6 runs. [root@x-bsw01 tests]# ./drv_debugfs_reader [root@x-bsw01 tests]# dmesg -r|egrep "<[1-4]>"|grep drm <3>[ 121.944420] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate CRC after 6 vblanks [ 109.270270] [drm:edp_panel_vdd_on] Turning eDP port C VDD on [ 109.270285] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f [ 112.286421] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off [ 112.286436] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007 [ 121.655828] [drm:edp_panel_vdd_on] Turning eDP port C VDD on [ 121.655842] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f [ 121.944420] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate CRC after 6 vblanks [ 124.670970] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off [ 124.670984] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007 [ 125.392085] [drm:edp_panel_vdd_on] Turning eDP port C VDD on [ 125.392100] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f [ 128.415147] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off [ 128.415161] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007 Patch to tune down the error message landed in dinq: commit df86fedba6691761401f4f560bc16b3181d36d9f Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Wed Nov 19 11:18:47 2014 +0100 drm/i915: Tune down sink crc timeout dmesg output (In reply to Daniel Vetter from comment #2) > Patch to tune down the error message landed in dinq: > > commit df86fedba6691761401f4f560bc16b3181d36d9f > Author: Daniel Vetter <daniel.vetter@ffwll.ch> > Date: Wed Nov 19 11:18:47 2014 +0100 > > drm/i915: Tune down sink crc timeout dmesg output I run 10 time for below cases on latest -nightly(cdb41f33d2a189531e3561f8d40327b8e1bb4e0e), didn't reproduce this issue. Verified. Intel_gpu_tools/igt_core_getclient Intel_gpu_tools/igt_core_get_client_auth_master-drop Intel_gpu_tools/igt_core_get_client_auth_simple Intel_gpu_tools/igt_core_getstats Intel_gpu_tools/igt_core_getversion Intel_gpu_tools/igt_debugfs_emon_crash Intel_gpu_tools/igt_drm_import_export_flink Intel_gpu_tools/igt_drm_import_export_prime Intel_gpu_tools/igt_drm_vma_limiter Intel_gpu_tools/igt_drm_vma_limiter_cached Intel_gpu_tools/igt_drm_vma_limiter_cpu Intel_gpu_tools/igt_drm_vma_limiter_gtt Intel_gpu_tools/igt_drv_debugfs_reader Closing old verified. |
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Created attachment 107689 [details] dmesg ==System Environment== -------------------------- Regression: not sure, unstable Non-working platforms: BYT ==kernel== -------------------------- drm-intel-nightly/ea4bec8e96ea8b33b49a7892c1c7f20041a56da6 ==Bug detailed description== ----------------------------- It sporadically causes "*ERROR* Panel is unable to calculate CRC after 6 vblanks" when run automation testing.Fail rate: 1/5. Clean boot system then run binary 5 cycles, it works well. Run case list: Intel_gpu_tools/igt_core_getclient PASS Intel_gpu_tools/igt_core_get_client_auth_master-drop PASS Intel_gpu_tools/igt_core_get_client_auth_simple PASS Intel_gpu_tools/igt_core_getstats PASS Intel_gpu_tools/igt_core_getversion PASS Intel_gpu_tools/igt_debugfs_emon_crash PASS Intel_gpu_tools/igt_drm_import_export_flink PASS Intel_gpu_tools/igt_drm_import_export_prime PASS Intel_gpu_tools/igt_drm_vma_limiter PASS Intel_gpu_tools/igt_drm_vma_limiter_cached PASS Intel_gpu_tools/igt_drm_vma_limiter_cpu PASS Intel_gpu_tools/igt_drm_vma_limiter_gtt PASS Intel_gpu_tools/igt_drv_debugfs_reader DMESG_WARN reboot run log: Test Environment check: Succeeded. [1/1] dmesg-warn: 1 Running Test(s): 0 [1/1] dmesg-warn: 1 Running Test(s): 1 Thank you for running Piglit! Results have been written to /GFX/Test/Piglit/piglit/t { "results_version": 1, "time_elapsed": 0.7119438648223877, "tests": { "igt/drv_debugfs_reader": { "dmesg": "[ 1575.354677] [drm:intel_dp_sink_crc] *ERROR* Panel is unable to calculate CRC after 6 vblanks", "returncode": 0, "err": "", "environment": "PIGLIT_SOURCE_DIR=\"/GFX/Test/Piglit/piglit\" PIGLIT_PLATFORM=\"mixed_glx_egl\"", "command": "/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests/drv_debugfs_reader", "result": "dmesg-warn", "time": 0.5496139526367188, "out": "" } }, "name": "t", "options": { "profile": [ "tests/igt.py" ], "dmesg": false, "execute": true, "platform": "mixed_glx_egl", "valgrind": false, "sync": false, "filter": [ "igt/drv_debugfs_reader$" ], "concurrent": "some", "exclude_tests": [], "env": { ==Reproduce steps== ---------------------------- 1. run above case list 5 cycles.