Raven Ridge Ryzen 2500U hang reproduced

[Bráulio Bhavamitra]

Suspend/resume are working fine now.

There is big chance idle=nomwait fixed all hangs (from
https://community.amd.com/thread/224000). Couldn't reproduce a hang since
using it.

CPU max. frequency is limited to 2000mhz, by firmware or linux 4.17, maybe
due to overheating? It goes beyond 3hz on windows.

Best regards,
Bráulio

On Mon, Mar 26, 2018 at 8:30 PM Bráulio Bhavamitra <brauliobo at gmail.com>
wrote:

> Hi all,
>
> Following the random crashes happenning with many users (e.g.
> https://www.phoronix.com/scan.php?page=news_item&px=Raven-Ridge-March-Update),
> not only on Linux but also Windows, I've been struggling to reproduce and
> generate any error log.
>
> After discovering that the error only happenned with KDE and games (at
> least for me, see https://bugs.kde.org/show_bug.cgi?id=392378), I could
> reproduce after a failing suspend.
>
> The crash most of the times allows the mouse to keep moving, but anything
> else works. Except for this time the keyboard worked so I could switch the
> tty and save the dmesg messages. After this I had to force reboot as it got
> stuck trying to kill the lightdm service (gpu hanged?).
>
> The errors are, see attached the full dmesg:
> [ 2899.525650] amdgpu 0000:03:00.0: couldn't schedule ib on ring <sdma0>
> [ 2899.525769] [drm:amdgpu_job_run [amdgpu]] *ERROR* Error scheduling IBs
> (-22)
> [ 2909.125047] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx
> timeout, last signaled seq=174624, last emitted seq=174627
> [ 2909.125060] [drm] IP block:psp is hung!
> [ 2909.125063] [drm] GPU recovery disabled.
> [ 2914.756931] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR*
> amdgpu_cs_list_validate(validated) failed.
> [ 2914.756997] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to process
> the buffer list -16!
> [ 2914.997372] amdgpu 0000:03:00.0: couldn't schedule ib on ring <sdma0>
> [ 2914.997498] [drm:amdgpu_job_run [amdgpu]] *ERROR* Error scheduling IBs
> (-22)
> [ 2930.117275] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR*
> amdgpu_cs_list_validate(validated) failed.
> [ 2930.117405] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to process
> the buffer list -16!
> [ 2930.152015] [drm:amdgpu_fill_buffer [amdgpu]] *ERROR* Trying to clear
> memory with ring turned off.
> [ 2930.157940] [drm:amdgpu_fill_buffer [amdgpu]] *ERROR* Trying to clear
> memory with ring turned off.
> [ 2930.180535] [drm:amdgpu_fill_buffer [amdgpu]] *ERROR* Trying to clear
> memory with ring turned off.
> [ 2933.781692] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
> [ 2945.477205] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR*
> amdgpu_cs_list_validate(validated) failed.
> [ 2945.477348] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to process
> the buffer list -16!
>
> System details:
> HP Envy x360 Ryzen 2500U
> ArchLinux, kernel 4.16rc6 and 4.15.12
>
> Cheers,
> bráulio
>
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