[Bug 2015596] Re: Mismatched apparmor features on HWE kernel roll

[John Chittum]

** Changed in: livecd-rootfs (Ubuntu)
     Assignee: (unassigned) => John Chittum (jchittum)

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Title:
  Mismatched apparmor features on HWE kernel roll

Status in livecd-rootfs package in Ubuntu:
  New

Bug description:
  In Ubuntu 22.04, the HWE kernel has rolled to 5.19. the 5.19 kernel
  includes the apparmor feature for ipc/posix_mqueue. livecd-rootfs only
  contains features for the 5.15 kernel, thus missing ipc/posix_mqueue.
  This leads to snap_preseed having a mismatch in features, and the
  preseed is not optimized. in a cloud environment this can lead to boot
  delays of between 5 and 10s (rough measurements observed while
  debugging)

  livecd-rootfs bind mounts apparmor features in
  functions/setup_mountpoint. This occurs early in the process when the
  final kernel is unknown.

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