Kernel panic with an Intel 10-Gigabit X540-AT2 card

[benalexau]

I undertook a fresh install of Arch Linux on a spare Supermicro server, including Booster 0.2-1 from the official Arch binary packages during pacstrap and a LUKS encrypted partition. Booster was configured for DHCP networking during the arch-chroot stage. The DHCP server returns a DNS server on the same subnet.

The initial reboot was successful and Tang-based unlocking was then configured using clevis luks bind -d /dev/sda2 tang '{"url": "http://cwdsrrkms1.acegi.com.au"}' (this host is on the same subnet as the host; ie no gateway is required). After rebooting the following kernel panic was displayed:

This server includes an Intel 10-Gigabit X540-AT2 (ensf30) card in addition to the inbuilt Intel I350 Gigabit Network Controller on the motherboard.

Following the above failed boot I restarted with a live image, disabled the network in /etc/booster.yaml, reinstalled Booster, and rebooted without issue.

Any thoughts on how to overcome the kernel panic?

[anatol]

It is a known race condition between closing udev reader and reading udev event - #22. See also s-urbaniak/uevent#3.

It has been fixed in master f51031a

So as a workaround you can try to use booster-git package from AUR until booster 0.3 is released to the official repo.

[benalexau]

Thanks @anatol.

Using AUR booster-git (built against bc5b255) fixed this issue and the server booted with Tang-based unlocking without any issue.