[PATCH v8 33/38] kselftest/arm64: Add a GCS test program built with the system libc

[Thiago Jung Bauermann]

Mark Brown <broonie at kernel.org> writes:

> [[PGP Signed Part:Undecided]]
> On Thu, Feb 22, 2024 at 11:24:59PM -0300, Thiago Jung Bauermann wrote:
>> Mark Brown <broonie at kernel.org> writes:
>
>> > I believe based on prior discussions that you're running this using
>> > shrinkwrap - can you confirm exactly how please, including things like
>> > which firmware configuration you're using?  I'm using current git with
>> >
>> >   shrinkwrap run \
>> >         --rtvar KERNEL=arch/arm64/boot/Image \
>> >         --rtvar ROOTFS=${ROOTFS} \
>> >         --rtvar CMDLINE="${CMDLINE}" \
>> >         --overlay=arch/v9.4.yaml ns-edk2.yaml
>> >
>> > and a locally built yocto and everything seems perfectly happy.
>> 
>> Yes, this is how I'm running it:
>> 
>>   CMDLINE="Image dtb=fdt.dtb console=ttyAMA0 earlycon=pl011,0x1c090000 root=/dev/vda2 ip=dhcp maxcpus=1"
>> 
>>   shrinkwrap run \
>>       --rtvar=KERNEL=Image-gcs-v8-v6.7-rc4-14743-ga551a7d7af93 \
>
> I guess that's bitrotted?

Ah, sorry. When I renamed the Image I messed up the kernel version in the
filename, but I did confirm via "uname -r" that I was running the
correct version: 6.8.0-rc2-ga551a7d7af93.

>> My rootfs is Ubuntu 22.04.3. In case it's useful, my kernel config is
>> here:
>
> ...
>
>> https://people.linaro.org/~thiago.bauermann/gcs/config-v6.8.0-rc2
>
> Thanks, it seems to be something in your config that's making a
> difference - I can see issues with that.  Hopefully that'll help me get
> to the bottom of this quickly.  I spent a bunch of time fighting with
> Ubuntu images to get them running but once I did they didn't seem to
> make much difference.

In that case, it's interesting that I still run into the problem with
the defconfig. One thing I failed to mention and perhaps is relevant
considering your result, is that I didn't copy the modules into the disk
image, so the FVP was running just with was built into the kernel.

That was actually the main reason for me to use a custom config:
I didn't want to have to deal with kernel modules, so I created a config
that didn't have any.

-- 
Thiago