Re: [RFC PATCH v1 00/57] Boot-time page size selection for arm64

Petr Tesarik
2024-12-05T17:28:22Z

Hi Ryan,

On Thu, 17 Oct 2024 13:32:43 +0100
Ryan Roberts <ryan.roberts@arm.com> wrote:

> On 17/10/2024 13:27, Petr Tesarik wrote:
> > On Mon, 14 Oct 2024 11:55:11 +0100
> > Ryan Roberts <ryan.roberts@arm.com> wrote:
> >
> >> [...]
> >> The series is arranged as follows:
> >>
> >> - patch 1: Add macros required for converting non-arch code to support
> >> boot-time page size selection
> >> - patches 2-36: Remove PAGE_SIZE compile-time constant assumption from all
> >> non-arch code
> >
> > I have just tried to recompile the openSUSE kernel with these patches
> > applied, and I'm running into this:
> >
> > CC arch/arm64/hyperv/hv_core.o
> > In file included from ../arch/arm64/hyperv/hv_core.c:14:0:
> > ../include/linux/hyperv.h:158:5: error: variably modified ‘reserved2’ at file scope
> > u8 reserved2[PAGE_SIZE - 68];
> > ^~~~~~~~~
> >
> > It looks like one more place which needs a patch, right?
>
> As mentioned in the cover letter, so far I've only converted enough to get the
> defconfig *image* building (i.e. no modules). If you are compiling a different
> config or compiling the modules for defconfig, you will likely run into these
> types of issues.
>
> That said, I do have some patches to fix Hyper-V, which Michael Kelley was kind
> enough to send me.
>
> I understand that Suse might be able to help with wider performance testing - if
> that's the reason you are trying to compile, you could send me your config and
> I'll start working on fixing up other drivers?

This project was de-prioritised for some time, but I have just returned
to it, and one of our test systems uses a Mellanox 5 NIC, which did not build.

If you still have time to work on your patch series, please, can you
look into enabling MLX5_CORE_EN?

Oh, and have you rebased the series to 6.12 yet?

Petr T