Bug 102364

Summary: [CI][SNB] vblank wait timed out while running igt@kms_flip@flip-vs-panning-vs-hang
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: normal    
Priority: medium CC: intel-gfx-bugs
Version: XOrg git   
Hardware: Other   
OS: All   
Whiteboard: ReadyForDev
i915 platform: SNB i915 features: display/Other

Description Martin Peres 2017-08-23 09:16:18 UTC 
On CI_DRM_2990 and CI_DRM_2991, the sharded SNB machines timed out on vblank wait when running igt@kms_flip@flip-vs-panning-vs-hang:

[   47.825142] pipe B vblank wait timed out
[   47.825171] ------------[ cut here ]------------
[   47.825203] WARNING: CPU: 2 PID: 152 at drivers/gpu/drm/i915/intel_display.c:12152 intel_atomic_commit_tail+0xedd/0xf00 [i915]
[   47.825206] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic i915 x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core broadcom bcm_phy_lib tg3 snd_pcm ptp pps_core mei_me lpc_ich mei prime_numbers
[   47.825247] CPU: 2 PID: 152 Comm: kworker/u16:6 Not tainted 4.13.0-rc6-CI-CI_DRM_2991+ #1
[   47.825248] Hardware name: Dell Inc. XPS 8300  /0Y2MRG, BIOS A06 10/17/2011
[   47.825269] Workqueue: events_unbound intel_atomic_commit_work [i915]
[   47.825273] task: ffff88022385cfc0 task.stack: ffffc90000bb0000
[   47.825293] RIP: 0010:intel_atomic_commit_tail+0xedd/0xf00 [i915]
[   47.825294] RSP: 0018:ffffc90000bb3d78 EFLAGS: 00010296
[   47.825298] RAX: 000000000000001c RBX: 0000000000000001 RCX: 0000000000000001
[   47.825300] RDX: 0000000080000001 RSI: ffffffff81d01e57 RDI: 00000000ffffffff
[   47.825301] RBP: ffffc90000bb3e20 R08: ffff88022385d8b0 R09: 0000000000000000
[   47.825303] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88021a520000
[   47.825305] R13: 0000000000000218 R14: 0000000000000004 R15: 0000000000000002
[   47.825307] FS:  0000000000000000(0000) GS:ffff88022fa80000(0000) knlGS:0000000000000000
[   47.825309] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.825310] CR2: 000055d8a7e081d8 CR3: 0000000001e0f000 CR4: 00000000000406e0
[   47.825312] Call Trace:
[   47.825317]  ? trace_hardirqs_off_caller+0x96/0xe0
[   47.825321]  ? wait_woken+0x90/0x90
[   47.825342]  intel_atomic_commit_work+0x12/0x20 [i915]
[   47.825345]  process_one_work+0x224/0x650
[   47.825350]  worker_thread+0x4e/0x3b0
[   47.825354]  kthread+0x114/0x150
[   47.825356]  ? process_one_work+0x650/0x650
[   47.825358]  ? kthread_create_on_node+0x40/0x40
[   47.825362]  ret_from_fork+0x27/0x40
[   47.825367] Code: ff ff ff 48 83 c7 08 e8 72 51 ed e0 4c 8b 85 78 ff ff ff 4d 85 c0 0f 85 d3 fd ff ff 8d 73 41 48 c7 c7 c0 9a 2a a0 e8 24 97 ef e0 <0f> ff e9 bd fd ff ff 8d 70 41 48 c7 c7 90 9a 2a a0 e8 0e 97 ef 
[   47.825460] ---[ end trace 34b8b125081ed49e ]---
[   59.832874] i915 0000:00:02.0: Resetting chip after gpu hang

Full logs: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_2991/shard-snb1/igt@kms_flip@flip-vs-panning-vs-hang.html
Comment 1 Martin Peres 2017-08-26 09:25:46 UTC 
Also seen on igt@kms_flip@flip-vs-panning-vs-hang-interruptible: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3006/shard-snb6/igt@kms_flip@flip-vs-panning-vs-hang-interruptible.html
Comment 3 Marta Löfstedt 2017-11-01 13:39:35 UTC 
Never seen again. Closing

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