Bug 109520

Summary: [CI][DRMTIP] igt@kms_chamelium@hdmi-hpd-storm - fail - Failed assertion: igt_hpd_storm_detected(data->drm_fd)
Product: DRI Reporter: Lakshmi <lakshminarayana.vudum>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: RESOLVED MOVED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs
Version: XOrg git   
Hardware: Other   
OS: All   
Whiteboard: Triaged, ReadyForDev
i915 platform: KBL i915 features: display/HDMI

Description Lakshmi 2019-01-31 15:13:59 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_202/fi-kbl-7500u/igt@kms_chamelium@hdmi-hpd-storm.html

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_202/fi-kbl-7567u/igt@kms_chamelium@hdmi-hpd-storm.html

Starting subtest: hdmi-hpd-storm
(kms_chamelium:2739) CRITICAL: Test assertion failure function test_hpd_storm_detect, file ../tests/kms_chamelium.c:752:
(kms_chamelium:2739) CRITICAL: Failed assertion: igt_hpd_storm_detected(data->drm_fd)
Subtest hdmi-hpd-storm failed.
**** DEBUG ****
(kms_chamelium:2739) igt_debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0'
(kms_chamelium:2739) igt_debugfs-DEBUG: Test requirement passed: fd > 0
(kms_chamelium:2739) igt_chamelium-DEBUG: Resetting the chamelium
(kms_chamelium:2739) DEBUG: Waiting for DP-2 to disconnect...
(kms_chamelium:2739) DEBUG: Reprobing DP-2...
(kms_chamelium:2739) DEBUG: Reprobing DP-2...
(kms_chamelium:2739) DEBUG: Reprobing DP-2...
(kms_chamelium:2739) DEBUG: Reprobing DP-2...
(kms_chamelium:2739) igt_debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0'
(kms_chamelium:2739) igt_debugfs-DEBUG: Setting HPD storm threshold to 1
(kms_chamelium:2739) igt_chamelium-DEBUG: Firing 10 HPD pulses with width of 200 msec on DP-2
(kms_chamelium:2739) igt_debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0'
(kms_chamelium:2739) CRITICAL: Test assertion failure function test_hpd_storm_detect, file ../tests/kms_chamelium.c:752:
(kms_chamelium:2739) CRITICAL: Failed assertion: igt_hpd_storm_detected(data->drm_fd)
(kms_chamelium:2739) igt_core-INFO: Stack trace:
(kms_chamelium:2739) igt_core-INFO:   #0 ../lib/igt_core.c:1474 __igt_fail_assert()
(kms_chamelium:2739) igt_core-INFO:   #1 ../tests/kms_chamelium.c:754 test_hpd_storm_detect()
(kms_chamelium:2739) igt_core-INFO:   #2 ../tests/kms_chamelium.c:923 __real_main796()
(kms_chamelium:2739) igt_core-INFO:   #3 ../tests/kms_chamelium.c:796 main()
(kms_chamelium:2739) igt_core-INFO:   #4 ../csu/libc-start.c:344 __libc_start_main()
(kms_chamelium:2739) igt_core-INFO:   #5 [_start+0x2a]
****  END  ****
Subtest hdmi-hpd-storm: FAIL (3.251s)
Comment 1 CI Bug Log 2019-01-31 15:17:38 UTC 
The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* KBL: igt@kms_chamelium@hdmi-hpd-storm - Fail - Failed assertion: igt_hpd_storm_detected(data-&gt;drm_fd) 
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_202/fi-kbl-7500u/igt@kms_chamelium@hdmi-hpd-storm.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_202/fi-kbl-7567u/igt@kms_chamelium@hdmi-hpd-storm.html
Comment 2 emersion 2019-08-16 14:01:00 UTC 
Only affects two KBL machines. Hit every few days.

This test always fails on KBL. It always passes on other platforms.

User impact: a bad cable can make a screen unusable.
Comment 3 Martin Peres 2019-11-29 18:06:23 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/intel/issues/223.

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