https://bugs.freedesktop.org/show_bug.cgi?id=104345

--- Comment #13 from bernhardu <bernhardu@mailbox.org> ---
Happened again.
A way to avoid that crash may be to not stay int first cold boot.
I am not sure but I think I never saw this when system was
running from a rebooted state (warm boot).


[    0.000000] Linux version 4.19.0-1-amd64 (debian-kernel@lists.debian.org)
(gcc version 8.2.0 (Debian 8.2.0-13)) #1 SMP Debian 4.19.12-1 (2018-12-22)
...
[32345.334084] amdgpu 0000:08:00.0: GPU fault detected: 146 0x06407704 for
process plasmashell pid 1422 thread plasmashel:cs0 pid 1720
[32345.334092] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x001002C8
[32345.334096] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x02077004
[32345.334101] amdgpu 0000:08:00.0: VM fault (0x04, vmid 1, pasid 32775) at
page 1049288, read from 'SDM0' (0x53444d30) (119)
[32345.334114] amdgpu 0000:08:00.0: GPU fault detected: 146 0x06407704 for
process plasmashell pid 1422 thread plasmashel:cs0 pid 1720
[32345.334118] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x001002C8
[32345.334121] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x02077004
[32345.334125] amdgpu 0000:08:00.0: VM fault (0x04, vmid 1, pasid 32775) at
page 1049288, read from 'SDM0' (0x53444d30) (119)
[32345.334523] amdgpu 0000:08:00.0: GPU fault detected: 146 0x06d8770c for
process plasmashell pid 1422 thread plasmashel:cs0 pid 1720
[32345.334528] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x001002DB
[32345.334532] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x0207700C
[32345.334538] amdgpu 0000:08:00.0: VM fault (0x0c, vmid 1, pasid 32775) at
page 1049307, read from 'SDM0' (0x53444d30) (119)
[32355.357958] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
signaled seq=947938, emitted seq=947940
[32355.357965] [drm] GPU recovery disabled.
[32505.119425] INFO: task kworker/u32:2:12454 blocked for more than 120
seconds.
[32505.119433]       Tainted: G           OE     4.19.0-1-amd64 #1 Debian
4.19.12-1
[32505.119435] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[32505.119438] kworker/u32:2   D    0 12454      2 0x80000000
[32505.119460] Workqueue: events_unbound commit_work [drm_kms_helper]
[32505.119464] Call Trace:
[32505.119474]  ? __schedule+0x2a2/0x870
[32505.119480]  ? __switch_to_asm+0x40/0x70
[32505.119484]  schedule+0x28/0x80
[32505.119488]  schedule_timeout+0x26d/0x390
[32505.119586]  ? dce110_timing_generator_get_position+0x5b/0x70 [amdgpu]
[32505.119682]  ? dce110_timing_generator_get_crtc_scanoutpos+0x70/0xb0
[amdgpu]
[32505.119687]  dma_fence_default_wait+0x238/0x2a0
[32505.119691]  ? dma_fence_release+0x90/0x90
[32505.119695]  dma_fence_wait_timeout+0xdd/0x100
[32505.119699]  reservation_object_wait_timeout_rcu+0x173/0x280
[32505.119800]  amdgpu_dm_do_flip+0x112/0x340 [amdgpu]
[32505.119903]  amdgpu_dm_atomic_commit_tail+0x750/0xdb0 [amdgpu]
[32505.119909]  ? wait_for_completion_timeout+0x3b/0x1a0
[32505.119913]  ? __switch_to_asm+0x34/0x70
[32505.119917]  ? __switch_to_asm+0x40/0x70
[32505.119921]  ? __switch_to_asm+0x34/0x70
[32505.119924]  ? __switch_to_asm+0x40/0x70
[32505.119938]  commit_tail+0x3d/0x70 [drm_kms_helper]
[32505.119946]  process_one_work+0x1a7/0x3a0
[32505.119951]  worker_thread+0x30/0x390
[32505.119955]  ? pwq_unbound_release_workfn+0xd0/0xd0
[32505.119959]  kthread+0x112/0x130
[32505.119963]  ? kthread_bind+0x30/0x30
[32505.119967]  ret_from_fork+0x22/0x40
[32528.537326] sysrq: SysRq : Keyboard mode set to system default

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