Re: Advice about debugging nouveau driver suspend issue (init_on_alloc=1 and init_on_free=1)

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On Thu, Aug 18, 2022 at 10:39 PM Lyude Paul <lyude@xxxxxxxxxx> wrote:
>
> So then - if we can get this patch re-submitted with the /* TODO */ added,
> I'll be happy to push this
>

yeah, I'll send something out tomorrow then.

> On Fri, 2022-08-12 at 01:07 +0200, Karol Herbst wrote:
> > On Thu, Aug 11, 2022 at 11:20 PM Lyude Paul <lyude@xxxxxxxxxx> wrote:
> > >
> > > On Thu, 2022-08-11 at 00:08 +0200, Karol Herbst wrote:
> > > > the thing is, without this patch, the "hw path" fails with a timeout
> > > > of... 30 seconds?, the code falls back to sw and it takes up to 2-3
> > > > minutes to finish up. So even if this solution is overkill, it fixes a
> > > > real issue. I suspect _something_ is bonkers with the fencing we do
> > > > here and we don't see that the stuff is actually finished or whatever,
> > > > or maybe we never emit the fence in the first place.. I didn't dig
> > > > deep enough.
> > > >
> > > > With this, it's really quick and everything.
> > >
> > > I guess with a todo comment this is probably fine then, since this would only
> > > really be affecting GPUs using m2mf anyway
> > >
> >
> > I was mostly wondering if this is safe, but it probably is and it does
> > fix real user issues. I don't have a better solution at the moment
> > anyway.
> >
> > > --
> > > Cheers,
> > >  Lyude Paul (she/her)
> > >  Software Engineer at Red Hat
> > >
> >
>
> --
> Cheers,
>  Lyude Paul (she/her)
>  Software Engineer at Red Hat
>




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