Bug 103716

Summary: [CI] igt@drv_selftest@live_dmabuf - dmesg-warn - i915: probe of 0000:00:02.0 failed with error -25
Product: DRI Reporter: Marta Löfstedt <marta.lofstedt>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED DUPLICATE QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs
Version: DRI git   
Hardware: Other   
OS: All   
Whiteboard: ReadyForDev
i915 platform: GLK i915 features:

Description Marta Löfstedt 2017-11-13 11:45:42 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3335/shard-glkb4/igt@drv_selftest@live_dmabuf.html

[ 4280.383219] Setting dangerous option live_selftests - tainting kernel
[ 4282.008781] i915: probe of 0000:00:02.0 failed with error -25
[ 4283.126588] CPU: 2 PID: 13313 Comm: kworker/2:20 Tainted: G     U  W       4.14.0-rc8-CI-CI_DRM_3335+ #1
[ 4283.126589] Hardware name: Intel Corp. Geminilake/GLK RVP1 DDR4 (05), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
[ 4283.126593] Workqueue: events output_poll_execute
[ 4283.126595] Call Trace:
[ 4283.126599]  dump_stack+0x68/0x9f
[ 4283.126602]  __lock_acquire+0x19d5/0x1b00
[ 4283.126605]  ? __this_cpu_preempt_check+0x13/0x20
[ 4283.126607]  ? trace_hardirqs_on_caller+0xe3/0x1b0
[ 4283.126609]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 4283.126611]  lock_acquire+0xb0/0x200
[ 4283.126612]  ? lock_acquire+0xb0/0x200
[ 4283.126614]  ? lock_hrtimer_base.isra.2+0x29/0x50
[ 4283.126617]  _raw_spin_lock_irqsave+0x3d/0x60
[ 4283.126618]  ? lock_hrtimer_base.isra.2+0x29/0x50
[ 4283.126620]  lock_hrtimer_base.isra.2+0x29/0x50
[ 4283.126621]  hrtimer_start_range_ns+0x2f/0x430
[ 4283.126623]  schedule_hrtimeout_range_clock+0xca/0x150
[ 4283.126625]  ? __hrtimer_run_queues+0x4d0/0x4d0
[ 4283.126626]  ? usleep_range+0x45/0x80
[ 4283.126627]  schedule_hrtimeout_range+0x13/0x20
[ 4283.126628]  usleep_range+0x62/0x80
[ 4283.126673]  intel_wait_for_register+0x104/0x140 [i915]
[ 4283.126716]  wait_panel_status+0x110/0x200 [i915]
[ 4283.126758]  edp_panel_on+0x130/0x1e0 [i915]
[ 4283.126800]  intel_edp_panel_on+0x26/0x50 [i915]
[ 4283.126841]  intel_ddi_pre_enable+0x12a/0x7e0 [i915]
[ 4283.126843]  ? trace_hardirqs_on+0xd/0x10
[ 4283.126886]  intel_encoders_pre_enable.isra.57+0x63/0x80 [i915]
[ 4283.126929]  haswell_crtc_enable+0x262/0x7b0 [i915]
[ 4283.126972]  intel_update_crtc+0x39/0x90 [i915]
[ 4283.127014]  skl_update_crtcs+0x197/0x1d0 [i915]
[ 4283.127056]  intel_atomic_commit_tail+0x286/0xbe0 [i915]
[ 4283.127098]  intel_atomic_commit+0x223/0x2d0 [i915]
[ 4283.127101]  drm_atomic_commit+0x4b/0x50
[ 4283.127103]  restore_fbdev_mode_atomic+0x190/0x1f0
[ 4283.127106]  restore_fbdev_mode+0x32/0x120
[ 4283.127108]  drm_fb_helper_restore_fbdev_mode_unlocked+0x50/0xa0
[ 4283.127109]  drm_fb_helper_set_par+0x2d/0x60
[ 4283.127111]  drm_fb_helper_hotplug_event.part.18+0x97/0xc0
[ 4283.127112]  drm_fb_helper_hotplug_event+0x1c/0x30
[ 4283.127154]  intel_fbdev_output_poll_changed+0x1a/0x20 [i915]
[ 4283.127156]  drm_kms_helper_hotplug_event+0x27/0x30
[ 4283.127157]  output_poll_execute+0x99/0x190
[ 4283.127160]  process_one_work+0x221/0x650
[ 4283.127162]  worker_thread+0x4e/0x3c0
[ 4283.127164]  kthread+0x114/0x150
[ 4283.127165]  ? process_one_work+0x650/0x650
[ 4283.127166]  ? kthread_create_on_node+0x40/0x40
[ 4283.127168]  ret_from_fork+0x27/0x40
Comment 1 Chris Wilson 2017-11-13 11:53:22 UTC 
Another example of

<7>[ 4283.126584] BUG: MAX_LOCKDEP_CHAINS too low!
<7>[ 4283.126585] turning off the locking correctness validator.

*** This bug has been marked as a duplicate of bug 103707 ***

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