Re: Raven Ridge Ryzen 2500U hang reproduced

["Nicolai Hähnle" <nhaehnle-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On 14.04.2018 00:24, Bráulio Bhavamitra wrote:
> It ALWAYS crashes on shader15 of 
> http://www.graphicsfuzz.com/benchmark/android-v1.html.

This is very likely an unrelated issue to any kind of desktop hang 
you're seeing. The graphics fuzz shaders are the result of fuzzing to 
intentionally generate unusual control flow structures which are likely 
to trigger shader compiler bugs. Typical desktop workloads don't have 
such shaders, so any generic desktop hang you're seeing is almost 
certainly unrelated.

Cheers,
Nicolai


> 
> Also reported at https://bugzilla.redhat.com/show_bug.cgi?id=1562530
> 
> Using kernel 4.16 with options rcu_nocb=0-15 and amdgpu.dpm=0
> 
> Cheers,
> Bráulio
> 
> On Mon, Mar 26, 2018 at 8:30 PM Bráulio Bhavamitra <brauliobo@gmail.com 
> <mailto:brauliobo@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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Aber vergiss niemals, wie sie sein sollte.
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