(In reply to James.Dutton from comment #12)
> In function: amdgpu_cs_parser_init:
>         if (p->ctx->vram_lost_counter != p->job->vram_lost_counter) {
>                 ret = -ECANCELED;
>                 goto free_all_kdata;
>         }
> 
> So, I guess, somewhere is the gpu reset, those values need to be fixed up.

It means the VRAM contents were lost during the GPU reset, so any existing
userspace contexts are invalid and need to be re-created (which at this point
boils down to restarting any processes using the GPU for rendering).