[Bug 104345] X-Server hangs with showing scrambled picture, sound still playing.

[bugzilla-daemon@freedesktop.org]

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

--- Comment #14 from bernhardu <bernhardu@mailbox.org> ---
This sample happend while just browsing in firefox inside a plasma desktop,
running in amd64 debian buster.


[138335.303379] amdgpu 0000:08:00.0: GPU fault detected: 147 0x0a704402 for
process Xorg pid 1129 thread Xorg:cs0 pid 1161
[138335.303387] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x0012014E
[138335.303391] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x0E044002
[138335.303396] amdgpu 0000:08:00.0: VM fault (0x02, vmid 7, pasid 32768) at
page 1179982, read from 'TC1' (0x54433100) (68)
[138335.313378] amdgpu 0000:08:00.0: GPU fault detected: 147 0x08904802 for
process kwin_x11 pid 1350 thread kwin_x11:cs0 pid 1568
[138335.313384] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x00120712
[138335.313388] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x02048002
[138335.313393] amdgpu 0000:08:00.0: VM fault (0x02, vmid 1, pasid 32773) at
page 1181458, read from 'TC0' (0x54433000) (72)
[139983.820484] amdgpu 0000:08:00.0: GPU fault detected: 147 0x00004802 for
process Xorg pid 1129 thread Xorg:cs0 pid 1161
[139983.820491] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x00000800
[139983.820495] amdgpu 0000:08:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x0C048002
[139983.820500] amdgpu 0000:08:00.0: VM fault (0x02, vmid 6, pasid 32768) at
page 2048, read from 'TC0' (0x54433000) (72)
[139994.156833] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
signaled seq=14610386, emitted seq=14610389
[139994.156840] [drm] GPU recovery disabled.
[140167.215046] INFO: task kworker/u32:3:15564 blocked for more than 120
seconds.
[140167.215053]       Tainted: G           OE     4.19.0-4-amd64 #1 Debian
4.19.28-2
[140167.215055] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[140167.215058] kworker/u32:3   D    0 15564      2 0x80000000
[140167.215080] Workqueue: events_unbound commit_work [drm_kms_helper]
[140167.215083] Call Trace:
[140167.215093]  ? __schedule+0x2a2/0x870
[140167.215098]  ? __switch_to_asm+0x40/0x70
[140167.215102]  schedule+0x28/0x80
[140167.215106]  schedule_timeout+0x26d/0x390
[140167.215204]  ? dce110_timing_generator_get_position+0x5b/0x70 [amdgpu]
[140167.215300]  ? dce110_timing_generator_get_crtc_scanoutpos+0x70/0xb0
[amdgpu]
[140167.215305]  dma_fence_default_wait+0x238/0x2a0
[140167.215310]  ? dma_fence_release+0x90/0x90
[140167.215314]  dma_fence_wait_timeout+0xdd/0x100
[140167.215319]  reservation_object_wait_timeout_rcu+0x173/0x280
[140167.215420]  amdgpu_dm_do_flip+0x112/0x340 [amdgpu]
[140167.215523]  amdgpu_dm_atomic_commit_tail+0x750/0xdb0 [amdgpu]
[140167.215528]  ? wait_for_completion_timeout+0x3b/0x1a0
[140167.215531]  ? __switch_to_asm+0x34/0x70
[140167.215535]  ? __switch_to_asm+0x40/0x70
[140167.215538]  ? __switch_to_asm+0x34/0x70
[140167.215541]  ? __switch_to_asm+0x40/0x70
[140167.215555]  commit_tail+0x3d/0x70 [drm_kms_helper]
[140167.215562]  process_one_work+0x1a7/0x3a0
[140167.215566]  worker_thread+0x30/0x390
[140167.215571]  ? create_worker+0x1a0/0x1a0
[140167.215573]  kthread+0x112/0x130
[140167.215577]  ? kthread_bind+0x30/0x30
[140167.215581]  ret_from_fork+0x22/0x40
[140241.805748] sysrq: SysRq : Keyboard mode set to system default


What can I do to get this bug forward?

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