Comment 2 for bug 2067862

Hi Dong,

I have been reading:

https://lore.kernel<email address hidden>/T/#m167335bf7ab09b12fec3bdc5d46a30bc2e26cac7

and I tried to reproduce the problem with 23.10's userspace, but I can't see the same crash.

By virtio legacy devices, you mean 0.97 virtio devices from ~2014 right? Would I need a 14.04 hypervisor to see this issue? I can try deploy one.

In any case, I have started building the below commit into a test kernel for you to try.

commit c8fae27d141a32a1624d0d0d5419d94252824498
From: Li Zhang <email address hidden>
Date: Sat, 16 Mar 2024 13:25:54 +0800
Subject: virtio-pci: Check if is_avq is NULL
Link: https://github.com/torvalds/linux/commit/c8fae27d141a32a1624d0d0d5419d94252824498

This kernel is going to take about 3 hours to compile, so wait 3 hours after this message before installing. You can also check status here:
https://launchpad.net/~mruffell/+archive/ubuntu/lp2067862-test

Please note this package is NOT SUPPORTED by Canonical, and is for TESTING
PURPOSES ONLY. ONLY Install in a dedicated test environment.

Instructions to Install (On a noble system):
1) sudo add-apt-repository ppa:mruffell/lp2067862-test
2) sudo apt update
3) sudo apt install linux-image-unsigned-6.8.0-31-generic linux-modules-6.8.0-31-generic linux-modules-extra-6.8.0-31-generic linux-headers-6.8.0-31-generic
4) sudo reboot
5) uname -rv
Look for "6.8.0-31.31+TEST2067862v20240614b1".

You might be asked to abort removing the currently running kernel. Say no.

Does the test kernel fix your issue?

Can you help me define the testcase so I can write a SRU template? How do you reproduce the problem?

Thanks,
Matthew