[Bug 211277] sometimes crash at s2ram-wake (Ryzen 3500U): amdgpu, drm, commit_tail, amdgpu_dm_atomic_commit_tail

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=211277

--- Comment #45 from Jerome C (me at jeromec.com) ---
Unfortunately this failed after 138 susp/resu


Thanks

Jerome

On 02/09/2021 22:24, bugzilla-daemon at bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=211277
>
> --- Comment #44 from James Zhu (jamesz at amd.com) ---
> Created attachment 298651
>    --> https://bugzilla.kernel.org/attachment.cgi?id=298651&action=edit
> A workaround for suspend/resume hung issue
>
> The VCN block passed all ring tests, usually the vcn will get into idle
> within
> 1 sec. Somehow it affected later amd iommu device resume which is controlled
> by
> kfd resume. This workaround is to gate vcn block immediately when ring test
> passed.
> It can fix the suspend/resume hung issue.
>
> Hi kolAflash,
> Please help check the WA in your setup. I will continue working on root
> cause.
> thanks!
> James
>
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