amdgpu 0000:01:00.0: IH ring buffer overflow (0x00000010, 0x00000000, 0x00000020)

[Christian König]

Am 27.04.2018 um 14:02 schrieb Paul Menzel:
> Dear Linux AMD folks,
>
>
> I get the overrun message below.

Sorry for the delayed response, I was on vacation and then on sick leave :(

>
>> $ more /proc/version
>> Linux version 4.14.30.mx64.211 (root at holidayincambodia.molgen.mpg.de) 
>> (gcc version 7.3.0 (GCC)) #1 SMP Tue Mar 27 12:40:07 CEST 2018

That one is ancient, please try an up to date kernel as well.

>> [90612.637194] amdgpu 0000:01:00.0: IH ring buffer overflow 
>> (0x00000010, 0x00000000, 0x00000020)
>
> Should this be reported and fixed? How can this be debugged? 
> (`drm.debug=0xe`?). We do not know how to reproduce it yet.

Yes, that should certainly be fixed. The issue is that your hardware is 
producing so many interrupts that the CPU can't catch up any more 
processing them.

That either sounds like a hardware problem or something is blocking the 
CPU for quite a long time with interrupts disabled.

Regards,
Christian.

>
>
> Kind regards,
>
> Paul
>
>
>
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