On Mon, Feb 10, 2025 at 12:46 PM David Hildenbrand david@redhat.com wrote:
On 10.02.25 20:35, John Hubbard wrote:
On 2/9/25 11:54 PM, Geert Uytterhoeven wrote:
On Sat, 8 Feb 2025 at 18:53, Yury Norov yury.norov@gmail.com wrote:
On Fri, Feb 07, 2025 at 03:14:01PM -0500, Tamir Duberstein wrote:
On 7/27/24 12:35 AM, Shuah Khan wrote:
...
The crux of the argument seems to be that the config help text is taken to describe the author's intent with the fragment "at boot". I think
IMO, "at boot" is a misnomer, as most tests can be either builtin or modular.
Right.
KUNIT is disabled in defconfig, at least on x86_64. It is also disabled on my Ubuntu 24.04 machine. If I take your patches, I'll be unable to
OK so I just bought a shiny new test machine, and installed one of the big name distros on it, hoping they've moved ahead and bought into the kunit story...
$ grep KUNIT /boot/config-6.8.0-52-generic # CONFIG_KUNIT is not set
...gagghh! No such luck. One more data point, in support of Yuri's complaint. :)
I think distros should start setting CONFIG_KUNIT=m.
Yes they should! kunit really does have important advantages for many use cases, including bitmaps here, and "CONFIG_KUNIT is not set" is the main obstacle.
Let me add a few people to Cc who might be able to influence some
distros.
thanks,
Fedora has it.
CS-10 has it (-> RHEL-10): redhat/configs/common/generic/CONFIG_KUNIT:CONFIG_KUNIT=m
https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-10/-/blob/m...
CS-9 has it (-> RHEL-9): redhat/configs/common/generic/CONFIG_KUNIT:CONFIG_KUNIT=m
https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/blob/ma...
So I think from the RH side everything is properly set?
Let me CC Nico, he did some KUNIT work in the past.
Yeah that is correct! I enabled KUNIT in our environments a few years ago. We enable it as a module and use our own wrapper to exercise the code. For RHEL and Centos these kunit modules are only shipped internally for testing; However fedora-rawhide makes these modules available in the kernel-modules-internal package.
To test this you can follow this to install rawhide-vm: https://developer.fedoraproject.org/tools/virt-builder/about.html then inside the vm: yum install kernel-modules-internal add the kunit.enable=1 to the cmdline reboot vm modprobe kunit modprobe <test_name>
Hopefully that helps! -- Nico
-- Cheers,
David / dhildenb