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Bug#878203: AA breaks libvirt when running with kernel 4.13

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Package: apparmor
Version: 2.11.0-11
Severity: serious

After the kernel upgrade from 4.12 to 4.13 my KVM/libvirt instances
failed to start:
Okt 10 19:24:44 pluto libvirtd[673]: 2017-10-10 17:24:44.404+0000: 797: error : virProcessRunInMountNamespace:1159 : internal error: child reported: Kernel does not provide mount namespace: Permission denied

Disabling AppArmor made libvirt work again.
There seems to be an incompatibility between the 4.13 kernel and
AppArmor. Please reassign if you think this is a bug in the kernel.

I've decided to mark this as RC, as breaking KVM is a rather severe
regression which needs to be fixed for buster.

A quick internet search turns up
https://forums.opensuse.org/showthread.php/527394-KVM-guest-will-not-start-with-latest-version-of-kernel
and following that
https://www.redhat.com/archives/libvir-list/2017-September/msg00546.html

Regards,
Michael


-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (200, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.13.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8), LANGUAGE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages apparmor depends on:
ii  debconf              1.5.63
ii  init-system-helpers  1.49
ii  libapparmor-perl     2.11.0-11
ii  libc6                2.24-17
ii  lsb-base             9.20170808
ii  python3              3.5.3-3

apparmor recommends no packages.

Versions of packages apparmor suggests:
ii  apparmor-profiles        2.11.0-11
pn  apparmor-profiles-extra  <none>
ii  apparmor-utils           2.11.0-11

-- debconf information excluded

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Bug#878203: AA breaks libvirt when running with kernel 4.13 Michael Biebl <biebl@debian.org> - 2017-10-13 00:20 +0200
  Bug#878203: [pkg-apparmor] Bug#878203: Bug#878203: AA breaks libvirt when running with kernel 4.13 Christian Boltz <debian-bugs@cboltz.de> - 2017-10-13 00:30 +0200
  Bug#878203: [pkg-apparmor] Bug#878203: AA breaks libvirt when running with kernel 4.13 Michael Biebl <biebl@debian.org> - 2017-10-13 00:40 +0200
  Bug#878203: [pkg-apparmor] Bug#878203: AA breaks libvirt when running with kernel 4.13 Seth Arnold <seth.arnold@canonical.com> - 2017-10-13 01:10 +0200
  Processed: Re: [pkg-apparmor] Bug#878203: Bug#878203: AA breaks  libvirt when running with kernel 4.13 owner@bugs.debian.org (Debian Bug Tracking System) - 2017-10-23 09:20 +0200
  Bug#878203: [pkg-apparmor] Bug#878203: Bug#878203: AA breaks libvirt when running with kernel 4.13 intrigeri <intrigeri@debian.org> - 2017-10-23 09:20 +0200

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