Public bug reported:

LXD virtual machine freezes on bootup and when accessing mounted
external storage driver


The 2 issues has been raised on github at the LXD project, where it turned out, 
the issue is related to the kvm kernel using for vm (qemu), switching the 
generic kernel within the vm (qemu) has solved the issues.

All the steps to reproduce the issue incl. output and panics has been
documented, thus I'm kindly ask to refer to the github issues:
https://github.com/lxc/lxd/issues/8400 and
https://github.com/lxc/lxd/issues/7224


Steps to reproduce:
lxc init ubuntu:focal v1 --vm
lxc config set v1 limits.cpu 4
lxc config device add v1 extv1 disk source=/external/mount/backup 
path=/mnt/external
lxc start v1
lxc console v1


workaround:
apt install linux-generic
apt remove linux-image-5.4.0-1032-kvm
update-grub

** Affects: linux-kvm (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: linux-kvm lxd qemu

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Packages, which is subscribed to linux-kvm in Ubuntu.
https://bugs.launchpad.net/bugs/1914271

Title:
  LXD virtual machine freezes on bootup and accessing storage driver

Status in linux-kvm package in Ubuntu:
  New

Bug description:
  LXD virtual machine freezes on bootup and when accessing mounted
  external storage driver

  
  The 2 issues has been raised on github at the LXD project, where it turned 
out, the issue is related to the kvm kernel using for vm (qemu), switching the 
generic kernel within the vm (qemu) has solved the issues.

  All the steps to reproduce the issue incl. output and panics has been
  documented, thus I'm kindly ask to refer to the github issues:
  https://github.com/lxc/lxd/issues/8400 and
  https://github.com/lxc/lxd/issues/7224


  Steps to reproduce:
  lxc init ubuntu:focal v1 --vm
  lxc config set v1 limits.cpu 4
  lxc config device add v1 extv1 disk source=/external/mount/backup 
path=/mnt/external
  lxc start v1
  lxc console v1


  workaround:
  apt install linux-generic
  apt remove linux-image-5.4.0-1032-kvm
  update-grub

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-kvm/+bug/1914271/+subscriptions

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