test: Skip NFS related tests on Fedora 42/43

[martinpitt]

Setting up an NFS pool triggers a kernel oops:
https://bugzilla.redhat.com/show_bug.cgi?id=2344326

This cannot be recovered from and breaks all subsequent tests and the VM, so skip the pool tests wholesale.

---

Avoids this mess: https://artifacts.dev.testing-farm.io/64435bb1-4258-45fc-a3ab-25d967adaee7/

• But also needs this first: naughty: Add pattern for libvirt pool volume regression bots#7406

[martinpitt]

at least it ran through the end now, but still 4 failures. What worries me is TestMachinesDisks.testAddDiskSCSI failed first, which doesn't go anywhere near NFS. It's reproducible locally as well, but it doesn't trigger a kernel oops - instead it fails with

virtqemud[866]: failed to load cgroup BPF prog: Operation not permitted

This is independent, so I'll leave that for a separate PR (it'll be a naughty pattern in bots). (not SELinux)

testAddDiskPool is the same.

testAddDiskDirPool is different -- it already fails during early setup in virsh pool-define-as, but passes locally. So might just be a follow-up error.

That leaves testAddDiskNFS , which triggers the kernel oops. So that one has to be skipped as well.

[martinpitt]

This is clearing up now it's down to testAddDisk{Pool,SCSI} which I discussed above. and Fedora 42 has the same kernel, so extending the skips.

[martinpitt]

I reported the BPF related bug to https://bugzilla.redhat.com/show_bug.cgi?id=2344342 and created known issue cockpit-project/bots#7405 .

I'll create a bots naughty thing, block on that.

TF is having a bad time right now anyway, and there's this exciting issue:

+ rpm -e --verbose amazon-ec2-utils
Preparing packages...
amazon-ec2-utils-2.2.0-6.fc42.noarch
+ udevadm trigger '/dev/nvme*'
Failed to open the device '/dev/nvme*': No such device
Shared connection to 3.145.154.28 closed.

I'll fix this along.

[martinpitt]

/packit test

[martinpitt]

Whew, green!