Bug 100445

Summary: [BAT][KBL] igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c Pipe A vblank wait timed out in CI
Product: DRI Reporter: Martin Peres <martin.peres>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED WORKSFORME QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: critical    
Priority: highest CC: intel-gfx-bugs
Version: DRI git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: KBL i915 features: power/suspend-resume

Description Martin Peres 2017-03-29 10:30:05 UTC 
For some reason, pipe A's vblank wait timed out when running igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c, leaving the test result as incomplete on fi-kbl-7560u.

Relevant extract of the trace:

[  555.314828] WARNING: CPU: 3 PID: 8466 at drivers/gpu/drm/i915/intel_display.c:12639 intel_atomic_commit_tail+0xff8/0x1020 [i915]
[  555.314830] pipe A vblank wait timed out
[  555.314831] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic asix usbnet mii x86_pkg_temp_thermal i915 intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm mei_me mei prime_numbers i2c_hid pinctrl_sunrisepoint pinctrl_intel
[  555.314864] CPU: 3 PID: 8466 Comm: kworker/u8:45 Tainted: G     U          4.11.0-rc4-CI-CI_DRM_2428+ #1
[  555.314865] Hardware name: Dell Inc. XPS 13 9360/093TW6, BIOS 1.3.2 01/18/2017
[  555.314869] Workqueue: events_unbound async_run_entry_fn
[  555.314871] Call Trace:
[  555.314874]  dump_stack+0x67/0x92
[  555.314877]  __warn+0xc6/0xe0
[  555.314880]  warn_slowpath_fmt+0x4a/0x50
[  555.314883]  ? finish_wait+0x5e/0x80
[  555.314900]  intel_atomic_commit_tail+0xff8/0x1020 [i915]
[  555.314904]  ? wake_atomic_t_function+0x30/0x30
[  555.314921]  intel_atomic_commit+0x42a/0x530 [i915]
[  555.314934]  ? intel_runtime_pm_put+0x51/0xb0 [i915]
[  555.314937]  drm_atomic_commit+0x46/0x50
[  555.314940]  drm_atomic_helper_commit_duplicated_state+0xbf/0xd0
[  555.314956]  __intel_display_resume+0x7f/0xd0 [i915]
[  555.314971]  intel_display_resume+0xdd/0x110 [i915]
[  555.314985]  i915_pm_restore+0xef/0x190 [i915]
[  555.314995]  i915_pm_resume+0x9/0x10 [i915]
[  555.315022]  pci_pm_resume+0x5f/0x90
[  555.315031]  dpm_run_callback+0x6f/0x330
[  555.315033]  ? pci_pm_thaw+0x90/0x90
[  555.315035]  device_resume+0xac/0x1e0
[  555.315038]  ? dpm_watchdog_set+0x60/0x60
[  555.315041]  async_resume+0x18/0x40
[  555.315043]  async_run_entry_fn+0x34/0x160
[  555.315046]  process_one_work+0x1f4/0x6d0
[  555.315048]  ? process_one_work+0x16e/0x6d0
[  555.315051]  worker_thread+0x49/0x4a0
[  555.315055]  kthread+0x107/0x140
[  555.315056]  ? process_one_work+0x6d0/0x6d0
[  555.315058]  ? kthread_create_on_node+0x40/0x40
[  555.315061]  ret_from_fork+0x2e/0x40
[  555.315066] ---[ end trace b6dda3db7d070407 ]---

Full results: https://intel-gfx-ci.01.org/CI/CI_DRM_2428/fi-kbl-7560u/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c.html
Comment 2 Jani Saarinen 2017-04-24 11:03:08 UTC 
Statistics for a/c test: 
Failure rate 1/91 run(s) (1%)
Failure rate 2/123 run(s) (1%)
Comment 3 Jani Saarinen 2017-05-08 13:55:49 UTC 
Update:
igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c
Last seen: 2017-04-10
Statistics: Failure rate 2/163 run(s) (1%)

igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a
Last seen: 2017-04-03
Statistics: Failure rate 1/131 run(s) (0%)
Comment 4 Jani Saarinen 2017-05-09 10:52:04 UTC 
Resolving as not seen lately, whitelisted for CI.

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