Bug#851870: autopkgtest-virt-qemu: Hangs if test causes a kernel panic

[Iain Lane]

Package: autopkgtest
Version: 4.3
Severity: minor
Tags: upstream

I was attempting to debug/fix LP: #1630578, so I wrote the attached
package to trigger a panic manually.

Seems that the qemu runner hangs when the panic happens. (Hopefully it's
going to timeout eventually.)

I thought about solving by slightly refactoring the auxverb use to use
asyncio when waiting for the command to exit, and then also for reading
from ttyS0 for occurrences of 'Kernel panic'.

Don't plan on working on this immediately (seems like a good train
task), so just RFC currently.

Cheers!

-- 
Iain Lane                                  [ iain at orangesquash.org.uk ]
Debian Developer                                   [ laney at debian.org ]
Ubuntu Developer                                   [ laney at ubuntu.com ]