[Bug 1432644] Re: VM permanently tries to read /dev/shm/lttng-ust-wait-5

[Seth Arnold]

Note that adding that entry may allow virtual machines an unexpected and
unwelcome amount of influence over the host system. If you just want the
errors silenced, use 'deny /run/shm/lttng-ust-wait-5 rw,' instead. If
you actually want lttng to function, then feel free to continue using
the allow rule but be sure you know why you want it and what it allows
guests to do.

Thanks

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https://bugs.launchpad.net/bugs/1432644

Title:
  VM permanently tries to read /dev/shm/lttng-ust-wait-5

Status in ceph package in Ubuntu:
  Confirmed
Status in libvirt package in Ubuntu:
  Confirmed

Bug description:
  VM permanently tries to read /dev/shm/lttng-ust-wait-5

  When used with enforced apparmor profile, this results in logs filled with denied messages.
  As I understand it, liblttng is here to allow tracing / debugging in python (not sure). Maybe virt-manager shouldn't be shipped with debugging mode enabled by default, or maybe it is a perfectly legitimate feature and the apparmor profile should be updated.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: virt-manager 1:1.0.1-4ubuntu3
  ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
  Uname: Linux 3.19.0-9-generic x86_64
  ApportVersion: 2.16.2-0ubuntu3
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Mar 16 14:25:39 2015
  InstallationDate: Installed on 2014-12-13 (92 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  PackageArchitecture: all
  SourcePackage: virt-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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