[Bug 106670] AMD GPU Error, random lockup, Ryzen 2500U Vega 8 GPU

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106670

--- Comment #5 from Jack Wolf <jackwolf2454 at gmail.com> ---
I have same issues.

AMD Ryzen 1800x 
Sapphier Vega 56
amdgpu git
kernel 4.17.0

This is what dmesg say from time to time beyond a hang up.

[Sa Jun  9 17:34:54 2018] [drm:generic_reg_wait] *ERROR* REG_WAIT timeout 10us
* 3500 tries - dce_mi_free_dmif line:563
[Sa Jun  9 17:34:54 2018] WARNING: CPU: 14 PID: 175 at
drivers/gpu/drm/amd/amdgpu/../display/dc/dc_helper.c:195
generic_reg_wait+0xe2/0x160
[Sa Jun  9 17:34:54 2018] Modules linked in: vboxpci(O) vboxnetadp(O)
vboxnetflt(O) vboxdrv(O)
[Sa Jun  9 17:34:54 2018] CPU: 14 PID: 175 Comm: kworker/14:1 Tainted: G       
   O      4.17.0 #1
[Sa Jun  9 17:34:54 2018] Hardware name: System manufacturer System Product
Name/PRIME B350-PLUS, BIOS 4011 04/19/2018
[Sa Jun  9 17:34:54 2018] Workqueue: events dm_irq_work_func
[Sa Jun  9 17:34:54 2018] RIP: 0010:generic_reg_wait+0xe2/0x160
[Sa Jun  9 17:34:54 2018] RSP: 0018:ffffba1941e9fa88 EFLAGS: 00010297
[Sa Jun  9 17:34:54 2018] RAX: 0000000000000000 RBX: 0000000000000dad RCX:
0000000000000000
[Sa Jun  9 17:34:54 2018] RDX: 0000000000000000 RSI: ffff985a9ef953b8 RDI:
ffff985a9ef953b8
[Sa Jun  9 17:34:54 2018] RBP: 000000000000000a R08: 0000000000000416 R09:
0000000000000002
[Sa Jun  9 17:34:54 2018] R10: 0000000000000002 R11: 0000000000000001 R12:
ffff985a8c8b5280
[Sa Jun  9 17:34:54 2018] R13: 00000000000035af R14: 0000000000000010 R15:
0000000000000001
[Sa Jun  9 17:34:54 2018] FS:  0000000000000000(0000) GS:ffff985a9ef80000(0000)
knlGS:0000000000000000
[Sa Jun  9 17:34:54 2018] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Sa Jun  9 17:34:54 2018] CR2: 000055e803d42c78 CR3: 00000003c621c000 CR4:
00000000003406e0
[Sa Jun  9 17:34:54 2018] Call Trace:
[Sa Jun  9 17:34:54 2018]  dce_mi_free_dmif+0x11c/0x1a0
[Sa Jun  9 17:34:54 2018]  dce110_reset_hw_ctx_wrap+0x13b/0x1c0
[Sa Jun  9 17:34:54 2018]  dce110_apply_ctx_to_hw+0x51/0x8c0
[Sa Jun  9 17:34:54 2018]  ? amdgpu_pm_compute_clocks+0xa2/0x570
[Sa Jun  9 17:34:54 2018]  dc_commit_state+0x333/0x5f0
[Sa Jun  9 17:34:54 2018]  ? set_freesync_on_streams.part.6+0x48/0x240
[Sa Jun  9 17:34:54 2018]  ? mod_freesync_set_user_enable+0x116/0x140
[Sa Jun  9 17:34:54 2018]  amdgpu_dm_atomic_commit_tail+0x359/0xd10
[Sa Jun  9 17:34:54 2018]  ? amdgpu_bo_pin_restricted+0x227/0x2e0
[Sa Jun  9 17:34:54 2018]  ? _cond_resched+0x10/0x40
[Sa Jun  9 17:34:54 2018]  ? wait_for_completion_timeout+0x2f/0x130
[Sa Jun  9 17:34:54 2018]  ? _cond_resched+0x10/0x40
[Sa Jun  9 17:34:54 2018]  ? wait_for_completion_interruptible+0x2c/0x160
[Sa Jun  9 17:34:54 2018]  ? dm_plane_helper_prepare_fb+0xea/0x290
[Sa Jun  9 17:34:54 2018]  commit_tail+0x38/0x70
[Sa Jun  9 17:34:54 2018]  drm_atomic_helper_commit+0x11c/0x130
[Sa Jun  9 17:34:54 2018]  dm_restore_drm_connector_state+0x100/0x190
[Sa Jun  9 17:34:54 2018]  handle_hpd_irq+0x81/0xa0
[Sa Jun  9 17:34:54 2018]  dm_irq_work_func+0x49/0x60
[Sa Jun  9 17:34:54 2018]  process_one_work+0x1cc/0x3c0
[Sa Jun  9 17:34:54 2018]  worker_thread+0x26/0x3f0
[Sa Jun  9 17:34:54 2018]  ?
trace_event_raw_event_workqueue_execute_start+0xc0/0xc0
[Sa Jun  9 17:34:54 2018]  kthread+0x10e/0x130
[Sa Jun  9 17:34:54 2018]  ? kthread_create_worker_on_cpu+0x70/0x70
[Sa Jun  9 17:34:54 2018]  ret_from_fork+0x22/0x40
[Sa Jun  9 17:34:54 2018] Code: 24 58 48 8b 4c 24 50 89 ee 8b 54 24 48 48 c7 c7
48 1d 4b 9a 44 89 4c 24 08 e8 6b 70 eb ff 41 83 7c 24 20 01 44 8b 4c 24 08 74
02 <0f> 0b 48 83 c4 10 44 89 c8
5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f
[Sa Jun  9 17:34:54 2018] ---[ end trace b03679a92b01c897 ]---


I can't give logs about hangups because i can't enter the machine via ssh.

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