How to dump gfx and waves after GPU reset happened?

[Christian König]

Am 04.05.19 um 12:51 schrieb Mikhail Gavrilov:
> On Sat, 4 May 2019 at 12:33, Christian König
> <ckoenig.leichtzumerken at gmail.com> wrote:
>> Hi Mikhail,
>>
>> well short answer is not at all :)
>>
>> After the GPU reset happened all waves should be gone and the gfx block
>> in a clean state again.
>>
>> What you need to do is to disable automatic reset by setting
>> amdgpu.lockup_timeout=-1 on the kernel command line and then inspect the
>> system over ssh.
>>
> This is not convenient, because:
> - requires an additional computer.
> - after the GPU freezes, the chances of correctly restarting the
> computer tend to zero.
> For me, as a bug hunter, it would be more convenient if all the dumps
> were automatically dropped before resetting the GPU to specified
> directory.

Yeah, but for most end users we need to get the GPU working as fast as 
possible on a lockup.

Saving all the state (which actually can be a couple of gigabytes if you 
include all textures etc..) is not really an option then.

What we could probably do rather easily is to add a function to run a 
script instead of a GPU reset on lockup detection.

Regards,
Christian.

>
> But thanks anyway.
> Here is a new bug report: https://bugs.freedesktop.org/show_bug.cgi?id=110605
>
> --
> Best Regards,
> Mike Gavrilov.
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