After Vega 56/64 GPU hang I unable reboot system

Grodzovsky, Andrey Andrey.Grodzovsky at
Mon Jan 7 18:46:55 UTC 2019

I see 'no active waves' print meaning it's not shader hang.

We can try and estimate around which commands the hang occurred - in 
addition to what you already print please also dump

sudo umr -O many,bits  -r *.*.mmGRBM_STATUS* && sudo umr -O many,bits  
-r *.*.mmCP_EOP_* && sudo umr -O many,bits -r *.*.mmCP_PFP_HEADER_DUMP 
&& sudo umr -O many,bits  -r *.*.mmCP_ME_HEADER_DUMP


On 01/04/2019 12:50 PM, Mikhail Gavrilov wrote:
> On Fri, 4 Jan 2019 at 01:23, Mikhail Gavrilov
> <mikhail.v.gavrilov at> wrote:
>> On Tue, 18 Dec 2018 at 00:08, Grodzovsky, Andrey
>> <Andrey.Grodzovsky at> wrote:
>>> Please install UMR and dump gfx ring content and waves after the hang is
>>> happening.
>> Today I caught hang again and able dump gfx ring content.
>> Andrey, can you look my dumps?
> And I am catch yet another hang.
> Of course I dumped all needed gfx ring content in attachment.
> --
> Best Regards,
> Mike Gavrilov.

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