Bug 111034 - [CI][SHARDS] igt@i915_hangman@error-state-capture-bcs0 - fail - Failed assertion: found
Summary: [CI][SHARDS] igt@i915_hangman@error-state-capture-bcs0 - fail - Failed assert...
Status: NEW
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: XOrg git
Hardware: Other All
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard: ReadyForDev
Keywords:
Depends on:
Blocks:
 
Reported: 2019-07-01 09:01 UTC by Martin Peres
Modified: 2019-08-06 05:02 UTC (History)
1 user (show)

See Also:
i915 platform: HSW, SNB
i915 features: GEM/Other


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Description Martin Peres 2019-07-01 09:01:52 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5073/shard-hsw7/igt@i915_hangman@error-state-capture-bcs0.html

Starting subtest: error-state-capture-bcs0
(i915_hangman:6596) CRITICAL: Test assertion failure function check_error_state, file ../tests/i915/i915_hangman.c:199:
(i915_hangman:6596) CRITICAL: Failed assertion: found
Comment 2 Chris Wilson 2019-07-01 09:48:40 UTC
<7> [807.223529] hangcheck bcs0
<7> [807.223532] hangcheck 	Awake? 1
<7> [807.223534] hangcheck 	Hangcheck: 12032 ms ago
<7> [807.223535] hangcheck 	Reset count: 0 (global 1023)
<7> [807.223537] hangcheck 	Requests:
<7> [807.223541] hangcheck 	RING_START: 0x00021000
<7> [807.223544] hangcheck 	RING_HEAD:  0x00001368
<7> [807.223546] hangcheck 	RING_TAIL:  0x00001378
<7> [807.223549] hangcheck 	RING_CTL:   0x0001f001
<7> [807.223552] hangcheck 	RING_MODE:  0x00000000
<7> [807.223554] hangcheck 	RING_IMR: ffbfffff
<7> [807.223557] hangcheck 	ACTHD:  0x00000000_7fff0d2c
<7> [807.223559] hangcheck 	BBADDR: 0x00000000_7fff052b
<7> [807.223561] hangcheck 	DMA_FADDR: 0x00000000_7fff0ec0
<7> [807.223564] hangcheck 	IPEIR: 0x00000008
<7> [807.223566] hangcheck 	IPEHR: 0x00000000
<7> [807.223570] hangcheck 		E  6:a9949-  @ 12049ms: i915_hangman[5167]
<7> [807.223572] hangcheck HWSP:
<7> [807.223575] hangcheck [0000] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<7> [807.223576] hangcheck *
<7> [807.223579] hangcheck [0100] 000a9925 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<7> [807.223581] hangcheck [0120] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<7> [807.223582] hangcheck *

The seqno suffered a panic attack and went backwards. And because the seqno did not point to a valid request, we ended up with no ringbuffer to inspect.
Comment 3 Francesco Balestrieri 2019-08-06 05:02:51 UTC
This was seen 4 times in 4 different machines on one day, and then not again for more than a month. We should keep monitoring it, but at least it doesn't seem to warrant high priority.


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