Bug#826796: Request for a new: linux-image-powerpc64-4K

On Thu, Apr 23, 2020 at 4:33 AM Ben Hutchings <ben@decadent.org.uk> wrote:

On Tue, 2020-04-21 at 11:26 +0200, Mathieu Malaterre wrote:
> Dear Debian-kernel team,
>
> > Would it be possible to ship an alternate ppc64 kernel build without
> > the 64K page option ?
>
> Could someone please clarify if this is possible/acceptable ? The new
> ppc64 kernel would not be the default but could be installed on G5
> machine after installation.

I'm sorry this is still unresolved. I have a couple of questions:

* How will people discover this and know that they should use it? If
the installer is still being updated for ppc64, shouldn't we select
this kernel automatically when an Nvidia PCI device is detected?

It could be an option during installation. It does not hurt anyone with bigendian and nvidia cards.

Other PPC should be little endian and the installer should be act differently in this case.

* Has anyone talked to the nouveau developers recently about either (a)
fixing support for larger pages or (b) fixing the dependencies for the
driver so it can't be built in an unsupported configuration?

In any case, if nouveau is completely broken with 64K pages then we
should make sure nouveau is disabled in our default ppc64
configuration.

You are right. I suppose there is some misunderstood or a techincal issue to have nvidia drivers using 4K page size.

This problem is well known since 2015 at least. Every people involved in the PPC side are knowing this from a long time, so I wondering if anybody from NVIDIA developing side are questioning about this issue.

Or simply it is too hard or limiting decrease this to 4K page. Just my 2 cents.

Regards,

Gianluca Renzi

Ciao e buona giornata.

"GP! In mezzo al campo stai proprio schifoso!"

Coach M.Russo