Bug 111798

Summary:	[CI][DRMTIP] [byt iommu?] igt@gem_wait@wait-bcs0 - fail - Failed assertion: __gem_wait(fd, &wait) == 0
Product:	DRI	Reporter:	Lakshmi <lakshminarayana.vudum>
Component:	DRM/Intel	Assignee:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Status:	RESOLVED MOVED	QA Contact:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity:	minor
Priority:	low	CC:	intel-gfx-bugs
Version:	DRI git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:	BYT	i915 features:	GEM/Other

Description Lakshmi 2019-09-24 07:33:58 UTC

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_375/fi-byt-n2820/igt@gem_wait@wait-bcs0.html
Starting subtest: wait-bcs0
(gem_wait:1105) CRITICAL: Test assertion failure function basic, file ../tests/i915/gem_wait.c:117:
(gem_wait:1105) CRITICAL: Failed assertion: __gem_wait(fd, &wait) == 0
(gem_wait:1105) CRITICAL: Last errno: 62, Timer expired
(gem_wait:1105) CRITICAL: error: -62 != 0
Subtest wait-bcs0 failed.

Comment 1 CI Bug Log 2019-09-24 07:36:55 UTC

The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* BYT: igt@gem_wait@wait-bcs0 - fail - Failed assertion: __gem_wait(fd, &amp;wait) == 0
  (No new failures associated)

Comment 2 Chris Wilson 2019-09-24 07:37:54 UTC

<7> [508.184259] __intel_gt_set_wedged bcs0
<7> [508.184277] __intel_gt_set_wedged 	Awake? 2
<7> [508.184294] __intel_gt_set_wedged 	Hangcheck: 1471 ms ago
<7> [508.184311] __intel_gt_set_wedged 	Reset count: 0 (global 12)
<7> [508.184327] __intel_gt_set_wedged 	Requests:
<7> [508.184352] __intel_gt_set_wedged 	MMIO base:  0x00022000
<7> [508.184418] __intel_gt_set_wedged 	RING_START: 0x007f1000
<7> [508.184444] __intel_gt_set_wedged 	RING_HEAD:  0x00002d38
<7> [508.184469] __intel_gt_set_wedged 	RING_TAIL:  0x000030e8
<7> [508.184503] __intel_gt_set_wedged 	RING_CTL:   0x00003001
<7> [508.184536] __intel_gt_set_wedged 	RING_MODE:  0x00000000
<7> [508.184560] __intel_gt_set_wedged 	RING_IMR: ffbfffff
<7> [508.184585] __intel_gt_set_wedged 	ACTHD:  0x00000000_b7e0784c
<7> [508.184617] __intel_gt_set_wedged 	BBADDR: 0x00000000_b7e0b7c9
<7> [508.184642] __intel_gt_set_wedged 	DMA_FADDR: 0x00000000_b7e0ea00
<7> [508.184666] __intel_gt_set_wedged 	IPEIR: 0x00000008
<7> [508.184802] __intel_gt_set_wedged 	IPEHR: 0x00000000
<7> [508.184830] __intel_gt_set_wedged 	PP_DIR_BASE: 0x7fdf0000
<7> [508.184855] __intel_gt_set_wedged 	PP_DIR_BASE_READ: 0x00000000
<7> [508.184886] __intel_gt_set_wedged 	PP_DIR_DCLV: 0xffffffff
<7> [508.185086] __intel_gt_set_wedged 		E  5:fb7-  @ 1868ms: gem_wait[1105]
<7> [508.185313] __intel_gt_set_wedged HWSP:
<7> [508.185337] __intel_gt_set_wedged [0000] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<7> [508.185353] __intel_gt_set_wedged *
<7> [508.185376] __intel_gt_set_wedged [0100] 00000fb5 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<7> [508.185398] __intel_gt_set_wedged [0120] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<7> [508.185414] __intel_gt_set_wedged *
<7> [508.185459] __intel_gt_set_wedged Idle? no
<7> [508.185476] __intel_gt_set_wedged Signals:
<7> [508.185606] __intel_gt_set_wedged 	[5:fb7] @ 1868ms

that looks like the classic jump into scratch and execute the entirety of the empty GTT. What's changed? iommu!

Comment 3 Francesco Balestrieri 2019-10-10 06:22:08 UTC

CI Buglog says 0/0 occurrences (!). Setting severity to minor.

Comment 4 Martin Peres 2019-11-29 19:34:07 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/448.

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