Public bug reported:
After upgrading to 14.04 I created an unprivileged lxc container
following https://www.stgraber.org/2014/01/17/lxc-1-0-unprivileged-
containers/
Unlike root containers they fail to start. With logging level strace I
get this output:
lxc-start 1397905196.384 INFO lxc_start_ui - using rcfile
/home/blizzz/.local/share/lxc/ubuntu1404/config
lxc-start 1397905196.384 INFO lxc_confile - read uid map: type u nsid
0 hostid 120000 range 65536
lxc-start 1397905196.384 INFO lxc_confile - read uid map: type g nsid
0 hostid 120000 range 65536
lxc-start 1397905196.386 WARN lxc_log - lxc_log_init called with log
already initialized
lxc-start 1397905196.392 INFO lxc_lsm - LSM security driver AppArmor
lxc-start 1397905196.393 DEBUG lxc_conf - allocated pty '/dev/pts/12'
(5/6)
lxc-start 1397905196.394 DEBUG lxc_conf - allocated pty '/dev/pts/13'
(7/8)
lxc-start 1397905196.394 DEBUG lxc_conf - allocated pty '/dev/pts/15'
(9/10)
lxc-start 1397905196.394 DEBUG lxc_conf - allocated pty '/dev/pts/16'
(11/12)
lxc-start 1397905196.394 INFO lxc_conf - tty's configured
lxc-start 1397905196.394 DEBUG lxc_start - sigchild handler set
lxc-start 1397905196.394 DEBUG lxc_console - no console peer
lxc-start 1397905196.396 INFO lxc_monitor - using monitor sock name
lxc/f59b2b10dfad8de3//home/blizzz/.local/share/lxc
lxc-start 1397905196.708 INFO lxc_start - 'ubuntu1404' is initialized
lxc-start 1397905196.715 DEBUG lxc_start - Not dropping cap_sys_boot
or watching utmp
lxc-start 1397905196.715 INFO lxc_start - Cloning a new user namespace
lxc-start 1397905196.715 INFO lxc_cgroup - cgroup driver cgroupfs
initing for ubuntu1404
lxc-start 1397905196.716 ERROR lxc_cgfs - Permission denied - failed
to set memory.use_hierarchy to 1; continuing
lxc-start 1397905196.716 ERROR lxc_cgfs - Could not set clone_children
to 1 for cpuset hierarchy in parent cgroup.
lxc-start 1397905196.717 ERROR lxc_cgfs - Permission denied -
cgroup_rmdir: failed to delete /var/local/cgroup/
lxc-start 1397905196.717 ERROR lxc_start - failed creating cgroups
lxc-start 1397905196.717 ERROR lxc_start - failed to spawn 'ubuntu1404'
lxc-start 1397905196.717 ERROR lxc_commands - command get_cgroup
failed to receive response
lxc-start 1397905196.718 WARN lxc_cgfs - Not attaching to cgroup
hugetlb unknown to /home/blizzz/.local/share/lxc ubuntu1404
Given, it sounds there are permission issues with regard to
cloning/configuring cgroups, on the other hand I did not change anything
knowingly (and I would not know how).
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: lxc 1.0.3-0ubuntu3
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: KDE
Date: Sat Apr 19 13:09:20 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2012-09-19 (576 days ago)
InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120919)
SourcePackage: lxc
UpgradeStatus: Upgraded to trusty on 2014-04-18 (0 days ago)
defaults.conf:
lxc.network.type = veth
lxc.network.link = lxcbr0
lxc.network.flags = up
lxc.network.hwaddr = 00:16:3e:xx:xx:xx
** Affects: lxc (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apparmor apport-bug trusty
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https://bugs.launchpad.net/bugs/1309923
Title:
Unprivileged lxc containers fail to start
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