Ubuntu
libcgroup package

cgroup-bin (deleted) init scripts stick around

Bug #1096771 reported by Robert Collins
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
libcgroup (Ubuntu)
Fix Released
High
Serge Hallyn
Quantal
Fix Released
High
Unassigned
Raring
Fix Released
High
Serge Hallyn

Bug Description

=======================
SRU Justification
1. Impact: cgroups can be wrongly set up, preventing lxc (and juju-lxc, etc) from working
2. Development fix: properly remove the upstart jobs from older cgroup-bin.
3. Stable fix: same as development fix
4. Test case: install precise's libcgroup1 and cgroup-bin (quick to build from the precise source). check that /etc/cgred.conf exists. Install the new versions, and do 'apt-get install -f' to have cgroup-lite (a new dependency) be installed. Check for /etc/cgred.conf - with the fix, it should have been removed.
5. Regression potential: there should be none.
=======================
$ sudo lxc-start -n lucid-test-lp -lDEBUG
lxc-start: No cgroup mounted on the system
lxc-start: failed to spawn 'lucid-test-lp'

robertc@lifelessdesktop:~$ mount
/dev/mapper/isw_bichcdfhcg_ARRAY0p6 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,relatime,cpuset)
cgroup on /sys/fs/cgroup/cpu type cgroup (rw,relatime,cpu)
cgroup on /sys/fs/cgroup/cpuacct type cgroup (rw,relatime,cpuacct)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,relatime,memory)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,relatime,freezer)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,relatime,blkio)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,relatime,perf_event)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfsd-fuse on /run/user/robertc/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=robertc)

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: lxc 0.8.0~rc1-4ubuntu39
ProcVersionSignature: Ubuntu 3.5.0-21.32-generic 3.5.7.1
Uname: Linux 3.5.0-21-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu9
Architecture: amd64
Date: Mon Jan 7 19:14:58 2013
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_NZ:en
 TERM=screen
 PATH=(custom, no user)
 LANG=en_NZ.UTF-8
 SHELL=/bin/bash
SourcePackage: lxc
UpgradeStatus: Upgraded to quantal on 2012-10-30 (69 days ago)

See original description
Revision history for this message
Robert Collins (lifeless) wrote :
Revision history for this message
Serge Hallyn (serge-hallyn) wrote :

I can't reproduce this on 12.10.

could you do

sudo lxc-start -n containername -l info -o outout

then attach outout here?

Changed in lxc (Ubuntu):
status: New → Incomplete
importance: Undecided → High
Revision history for this message
Robert Collins (lifeless) wrote :

robertc@lifelessdesktop:~$ sudo lxc-start -n lucid-test-lp -linfo -o /tmp/output
lxc-start: No cgroup mounted on the system
lxc-start: failed to spawn 'lucid-test-lp'
robertc@lifelessdesktop:~$ less /tmp/output
      lxc-start 1357584051.325 INFO lxc_conf - tty's configured
      lxc-start 1357584051.325 INFO lxc_start - 'lucid-test-lp' is initialized
      lxc-start 1357584051.356 INFO lxc_conf - opened /var/lib/lxc/lucid-test-lp/rootfs.hold as fd 18

      lxc-start 1357584051.357 ERROR lxc_cgroup - No cgroup mounted on the system
      lxc-start 1357584051.372 ERROR lxc_start - failed to spawn 'lucid-test-lp'

Changed in lxc (Ubuntu):
status: Incomplete → New
Revision history for this message
Robert Collins (lifeless) wrote :

robertc@lifelessdesktop:~$ sudo lxc-start -n lucid-test-lp -ldebug -o /tmp/output
lxc-start: No cgroup mounted on the system
lxc-start: failed to spawn 'lucid-test-lp'
robertc@lifelessdesktop:~$ less /tmp/output
      lxc-start 1357584371.308 DEBUG lxc_conf - allocated pty '/dev/pts/3' (4/5)
      lxc-start 1357584371.308 DEBUG lxc_conf - allocated pty '/dev/pts/7' (6/7)
      lxc-start 1357584371.308 DEBUG lxc_conf - allocated pty '/dev/pts/8' (8/9)
      lxc-start 1357584371.308 DEBUG lxc_conf - allocated pty '/dev/pts/9' (10/11)
      lxc-start 1357584371.308 INFO lxc_conf - tty's configured
      lxc-start 1357584371.308 DEBUG lxc_console - using '/dev/tty' as console
      lxc-start 1357584371.308 DEBUG lxc_start - sigchild handler set
      lxc-start 1357584371.308 INFO lxc_start - 'lucid-test-lp' is initialized
      lxc-start 1357584371.312 DEBUG lxc_start - Not dropping cap_sys_boot or watching utmp

      lxc-start 1357584371.314 DEBUG lxc_conf - mac address of host interface 'vethY1hl2O' changed to private fe:0e:89:11:b6:c1
      lxc-start 1357584371.316 DEBUG lxc_conf - instanciated veth 'vethY1hl2O/vethzYYWp8', index is '19'
      lxc-start 1357584371.316 INFO lxc_conf - opened /var/lib/lxc/lucid-test-lp/rootfs.hold as fd 18

      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/' (rootfs)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/sys' (sysfs)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/proc' (proc)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/dev' (devtmpfs)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/dev/pts' (devpts)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/run' (tmpfs)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/' (ext4)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/sys/fs/fuse/connections' (fusectl)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/sys/kernel/debug' (debugfs)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/sys/kernel/security' (securityfs)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/run/lock' (tmpfs)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/run/shm' (tmpfs)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/run/user' (tmpfs)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/proc/sys/fs/binfmt_misc' (binfmt_misc)
      lxc-start 1357584371.318 DEBUG lxc_cgroup - checking '/run/user/robertc/gvfs' (fuse.gvfsd-fuse)
      lxc-start 1357584371.318 ERROR lxc_cgroup - No cgroup mounted on the system
      lxc-start 1357584371.332 ERROR lxc_start - failed to spawn 'lucid-test-lp'

Revision history for this message
Robert Collins (lifeless) wrote :
Download full text (3.4 KiB)

robertc@lifelessdesktop:~$ cat /proc/self/mounts
rootfs / rootfs rw 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
udev /dev devtmpfs rw,relatime,size=8129608k,nr_inodes=2032402,mode=755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,relatime,size=3257152k,mode=755 0 0
/dev/disk/by-uuid/9dce3ded-5110-40ec-9401-0e46a11f281d / ext4 rw,relatime,errors=remount-ro,stripe=32,data=ordered 0 0
none /sys/fs/fuse/connections fusectl rw,relatime 0 0
none /sys/kernel/debug debugfs rw,relatime 0 0
none /sys/kernel/security securityfs rw,relatime 0 0
none /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
none /run/shm tmpfs rw,nosuid,nodev,relatime 0 0
none /run/user tmpfs rw,nosuid,nodev,noexec,relatime,size=102400k,mode=755 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,nosuid,nodev,noexec,relatime 0 0
gvfsd-fuse /run/user/robertc/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=1000,group_id=1000 0 0
robertc@lifelessdesktop:~$ cat /proc/mounts
rootfs / rootfs rw 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
udev /dev devtmpfs rw,relatime,size=8129608k,nr_inodes=2032402,mode=755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,relatime,size=3257152k,mode=755 0 0
/dev/disk/by-uuid/9dce3ded-5110-40ec-9401-0e46a11f281d / ext4 rw,relatime,errors=remount-ro,stripe=32,data=ordered 0 0
none /sys/fs/fuse/connections fusectl rw,relatime 0 0
none /sys/kernel/debug debugfs rw,relatime 0 0
none /sys/kernel/security securityfs rw,relatime 0 0
none /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
none /run/shm tmpfs rw,nosuid,nodev,relatime 0 0
none /run/user tmpfs rw,nosuid,nodev,noexec,relatime,size=102400k,mode=755 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,nosuid,nodev,noexec,relatime 0 0
gvfsd-fuse /run/user/robertc/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=1000,group_id=1000 0 0
robertc@lifelessdesktop:~$ mount
/dev/mapper/isw_bichcdfhcg_ARRAY0p6 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,relatime,cpuset)
cgroup on /sys/fs/cgroup/cpu type cgroup (rw,relatime,cpu)
cgroup on /sys/fs/cgroup/cpuacct type cgroup (rw,relatime,cpuacct)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,relatime,memory)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,rela...

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Revision history for this message
Robert Collins (lifeless) wrote :

 cat /etc/mtab
/dev/mapper/isw_bichcdfhcg_ARRAY0p6 / ext4 rw,errors=remount-ro 0 0
proc /proc proc rw,noexec,nosuid,nodev 0 0
sysfs /sys sysfs rw,noexec,nosuid,nodev 0 0
none /sys/fs/fuse/connections fusectl rw 0 0
none /sys/kernel/debug debugfs rw 0 0
none /sys/kernel/security securityfs rw 0 0
udev /dev devtmpfs rw,mode=0755 0 0
devpts /dev/pts devpts rw,noexec,nosuid,gid=5,mode=0620 0 0
tmpfs /run tmpfs rw,noexec,nosuid,size=10%,mode=0755 0 0
none /run/lock tmpfs rw,noexec,nosuid,nodev,size=5242880 0 0
none /run/shm tmpfs rw,nosuid,nodev 0 0
none /run/user tmpfs rw,noexec,nosuid,nodev,size=104857600,mode=0755 0 0
cgroup /sys/fs/cgroup/cpuset cgroup rw,relatime,cpuset 0 0
cgroup /sys/fs/cgroup/cpu cgroup rw,relatime,cpu 0 0
cgroup /sys/fs/cgroup/cpuacct cgroup rw,relatime,cpuacct 0 0
cgroup /sys/fs/cgroup/memory cgroup rw,relatime,memory 0 0
cgroup /sys/fs/cgroup/devices cgroup rw,relatime,devices 0 0
cgroup /sys/fs/cgroup/freezer cgroup rw,relatime,freezer 0 0
cgroup /sys/fs/cgroup/blkio cgroup rw,relatime,blkio 0 0
cgroup /sys/fs/cgroup/perf_event cgroup rw,relatime,perf_event 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,noexec,nosuid,nodev 0 0
gvfsd-fuse /run/user/robertc/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,user=robertc 0 0

Revision history for this message
Robert Collins (lifeless) wrote :

robertc@lifelessdesktop:~$ less /etc/init/cgroup-lite.conf
description "mount available cgroup filesystems"
author "Serge Hallyn <email address hidden>"

start on mounted MOUNTPOINT=/sys

pre-start script
        test -x /bin/cgroups-mount || { stop; exit 0; }
        test -d /sys/fs/cgroup || { stop; exit 0; }
        /bin/cgroups-mount
end script

post-stop script
        if [ -x /bin/cgroups-umount ]
        then
                /bin/cgroups-umount
        fi
end script
robertc@lifelessdesktop:~$ sudo /bin/cgroups-mount
robertc@lifelessdesktop:~$ cat /proc/self/mounts
rootfs / rootfs rw 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
udev /dev devtmpfs rw,relatime,size=8129608k,nr_inodes=2032402,mode=755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,relatime,size=3257152k,mode=755 0 0
/dev/disk/by-uuid/9dce3ded-5110-40ec-9401-0e46a11f281d / ext4 rw,relatime,errors=remount-ro,stripe=32,data=ordered 0 0
none /sys/fs/fuse/connections fusectl rw,relatime 0 0
none /sys/kernel/debug debugfs rw,relatime 0 0
none /sys/kernel/security securityfs rw,relatime 0 0
none /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
none /run/shm tmpfs rw,nosuid,nodev,relatime 0 0
none /run/user tmpfs rw,nosuid,nodev,noexec,relatime,size=102400k,mode=755 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,nosuid,nodev,noexec,relatime 0 0
gvfsd-fuse /run/user/robertc/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=1000,group_id=1000 0 0
cgroup /sys/fs/cgroup tmpfs rw,relatime,mode=755 0 0
cgroup /sys/fs/cgroup/cpuset cgroup rw,relatime,cpuset 0 0
cgroup /sys/fs/cgroup/cpu cgroup rw,relatime,cpu 0 0
cgroup /sys/fs/cgroup/cpuacct cgroup rw,relatime,cpuacct 0 0
cgroup /sys/fs/cgroup/memory cgroup rw,relatime,memory 0 0
cgroup /sys/fs/cgroup/devices cgroup rw,relatime,devices 0 0
cgroup /sys/fs/cgroup/freezer cgroup rw,relatime,freezer 0 0
cgroup /sys/fs/cgroup/blkio cgroup rw,relatime,blkio 0 0
cgroup /sys/fs/cgroup/perf_event cgroup rw,relatime,perf_event 0 0

Revision history for this message
Robert Collins (lifeless) wrote :

robertc@lifelessdesktop:~$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
/dev/mapper/isw_bichcdfhcg_ARRAY0p6 / ext4 errors=remount-ro 0 1
/dev/mapper/isw_bichcdfhcg_ARRAY0p5 none swap sw 0 0
/dev/mapper/isw_bichcdfhcg_ARRAY0p5 none swap sw 0 0
#/mnt/16GB.swap none swap sw 0 0

Revision history for this message
Robert Collins (lifeless) wrote :

 sudo cat /proc/1/mountinfo
15 20 0:14 / /sys rw,nosuid,nodev,noexec,relatime - sysfs sysfs rw
16 20 0:3 / /proc rw,nosuid,nodev,noexec,relatime - proc proc rw
17 20 0:5 / /dev rw,relatime - devtmpfs udev rw,size=8129608k,nr_inodes=2032402,mode=755
18 17 0:11 / /dev/pts rw,nosuid,noexec,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=000
19 20 0:15 / /run rw,nosuid,relatime - tmpfs tmpfs rw,size=3257152k,mode=755
20 1 252:8 / / rw,relatime - ext4 /dev/disk/by-uuid/9dce3ded-5110-40ec-9401-0e46a11f281d rw,errors=remount-ro,stripe=32,data=ordered
21 15 0:16 / /sys/fs/fuse/connections rw,relatime - fusectl none rw
23 15 0:6 / /sys/kernel/debug rw,relatime - debugfs none rw
25 15 0:10 / /sys/kernel/security rw,relatime - securityfs none rw
26 19 0:19 / /run/lock rw,nosuid,nodev,noexec,relatime - tmpfs none rw,size=5120k
27 19 0:20 / /run/shm rw,nosuid,nodev,relatime - tmpfs none rw
28 19 0:21 / /run/user rw,nosuid,nodev,noexec,relatime - tmpfs none rw,size=102400k,mode=755
36 16 0:29 / /proc/sys/fs/binfmt_misc rw,nosuid,nodev,noexec,relatime - binfmt_misc binfmt_misc rw
22 28 0:17 / /run/user/robertc/gvfs rw,nosuid,nodev,relatime - fuse.gvfsd-fuse gvfsd-fuse rw,user_id=1000,group_id=1000
24 15 0:18 / /sys/fs/cgroup rw,relatime - tmpfs cgroup rw,mode=755
29 24 0:22 / /sys/fs/cgroup/cpuset rw,relatime - cgroup cgroup rw,cpuset,clone_children
30 24 0:23 / /sys/fs/cgroup/cpu rw,relatime - cgroup cgroup rw,cpu,clone_children
31 24 0:24 / /sys/fs/cgroup/cpuacct rw,relatime - cgroup cgroup rw,cpuacct,clone_children
32 24 0:25 / /sys/fs/cgroup/memory rw,relatime - cgroup cgroup rw,memory,clone_children
33 24 0:26 / /sys/fs/cgroup/devices rw,relatime - cgroup cgroup rw,devices,clone_children
34 24 0:27 / /sys/fs/cgroup/freezer rw,relatime - cgroup cgroup rw,freezer,clone_children
35 24 0:28 / /sys/fs/cgroup/blkio rw,relatime - cgroup cgroup rw,blkio,clone_children
38 24 0:30 / /sys/fs/cgroup/perf_event rw,relatime - cgroup cgroup rw,perf_event,clone_children

Revision history for this message
Robert Collins (lifeless) wrote :

sudo cat /proc/1/mountsrobertc@lifelessdesktop:~$ sudo cat /proc/1/mounts
[sudo] password for robertc:
rootfs / rootfs rw 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
udev /dev devtmpfs rw,relatime,size=8129608k,nr_inodes=2032402,mode=755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,relatime,size=3257152k,mode=755 0 0
/dev/disk/by-uuid/9dce3ded-5110-40ec-9401-0e46a11f281d / ext4 rw,relatime,errors=remount-ro,stripe=32,data=ordered 0 0
none /sys/fs/fuse/connections fusectl rw,relatime 0 0
none /sys/kernel/debug debugfs rw,relatime 0 0
none /sys/kernel/security securityfs rw,relatime 0 0
none /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
none /run/shm tmpfs rw,nosuid,nodev,relatime 0 0
none /run/user tmpfs rw,nosuid,nodev,noexec,relatime,size=102400k,mode=755 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,nosuid,nodev,noexec,relatime 0 0
gvfsd-fuse /run/user/robertc/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=1000,group_id=1000 0 0
robertc@lifelessdesktop:~$ sudo cat /etc/mtab
/dev/mapper/isw_bichcdfhcg_ARRAY0p6 / ext4 rw,errors=remount-ro 0 0
proc /proc proc rw,noexec,nosuid,nodev 0 0
sysfs /sys sysfs rw,noexec,nosuid,nodev 0 0
none /sys/fs/fuse/connections fusectl rw 0 0
none /sys/kernel/debug debugfs rw 0 0
none /sys/kernel/security securityfs rw 0 0
udev /dev devtmpfs rw,mode=0755 0 0
devpts /dev/pts devpts rw,noexec,nosuid,gid=5,mode=0620 0 0
tmpfs /run tmpfs rw,noexec,nosuid,size=10%,mode=0755 0 0
none /run/lock tmpfs rw,noexec,nosuid,nodev,size=5242880 0 0
none /run/shm tmpfs rw,nosuid,nodev 0 0
none /run/user tmpfs rw,noexec,nosuid,nodev,size=104857600,mode=0755 0 0
cgroup /sys/fs/cgroup/cpuset cgroup rw,relatime,cpuset 0 0
cgroup /sys/fs/cgroup/cpu cgroup rw,relatime,cpu 0 0
cgroup /sys/fs/cgroup/cpuacct cgroup rw,relatime,cpuacct 0 0
cgroup /sys/fs/cgroup/memory cgroup rw,relatime,memory 0 0
cgroup /sys/fs/cgroup/devices cgroup rw,relatime,devices 0 0
cgroup /sys/fs/cgroup/freezer cgroup rw,relatime,freezer 0 0
cgroup /sys/fs/cgroup/blkio cgroup rw,relatime,blkio 0 0
cgroup /sys/fs/cgroup/perf_event cgroup rw,relatime,perf_event 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,noexec,nosuid,nodev 0 0
gvfsd-fuse /run/user/robertc/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,user=robertc 0 0
robertc@lifelessdesktop:~$ sudo ls /sys/fs/cgroup

Revision history for this message
Robert Collins (lifeless) wrote :

robertc@lifelessdesktop:~$ cat /proc/self/mountinfo
15 20 0:14 / /sys rw,nosuid,nodev,noexec,relatime - sysfs sysfs rw
16 20 0:3 / /proc rw,nosuid,nodev,noexec,relatime - proc proc rw
17 20 0:5 / /dev rw,relatime - devtmpfs udev rw,size=8129608k,nr_inodes=2032402,mode=755
18 17 0:11 / /dev/pts rw,nosuid,noexec,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=000
19 20 0:15 / /run rw,nosuid,relatime - tmpfs tmpfs rw,size=3257152k,mode=755
20 1 252:8 / / rw,relatime - ext4 /dev/disk/by-uuid/9dce3ded-5110-40ec-9401-0e46a11f281d rw,errors=remount-ro,stripe=32,data=ordered
21 15 0:16 / /sys/fs/fuse/connections rw,relatime - fusectl none rw
23 15 0:6 / /sys/kernel/debug rw,relatime - debugfs none rw
25 15 0:10 / /sys/kernel/security rw,relatime - securityfs none rw
26 19 0:19 / /run/lock rw,nosuid,nodev,noexec,relatime - tmpfs none rw,size=5120k
27 19 0:20 / /run/shm rw,nosuid,nodev,relatime - tmpfs none rw
28 19 0:21 / /run/user rw,nosuid,nodev,noexec,relatime - tmpfs none rw,size=102400k,mode=755
36 16 0:29 / /proc/sys/fs/binfmt_misc rw,nosuid,nodev,noexec,relatime - binfmt_misc binfmt_misc rw
22 28 0:17 / /run/user/robertc/gvfs rw,nosuid,nodev,relatime - fuse.gvfsd-fuse gvfsd-fuse rw,user_id=1000,group_id=1000

Revision history for this message
Robert Collins (lifeless) wrote :

robertc@lifelessdesktop:~$ sudo ls /sys/fs/cgroup
robertc@lifelessdesktop:~$ echo $?
0
robertc@lifelessdesktop:~$ ls -d /sys/fs/cgroup
/sys/fs/cgroup

Revision history for this message
Robert Collins (lifeless) wrote :

 status cgroup-lite
cgroup-lite start/running

Revision history for this message
Robert Collins (lifeless) wrote :

exec 2>&1 1>/run/cgroup.debug
exec 2>&1 1>>/run/cgroup.debug
set -x

cgroup.debug during boot: (.1)
 cat /run/cgroup.debug.1
+ grep /sys/fs/cgroup /proc/mounts
+ [ -n ]
+ grep -v ^# /etc/fstab
+ grep -q cgroup
+ grep -q cgroup /proc/mounts
+ [ ! -e /proc/cgroups ]
+ mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroup /sys/fs/cgroup
+ sed -e 1d;s/\([^\t]\)\t.*$/\1/ /proc/cgroups
+ mkdir /sys/fs/cgroup/cpuset
+ mount -n -t cgroup -o cpuset cgroup /sys/fs/cgroup/cpuset
+ mkdir /sys/fs/cgroup/cpu
+ mount -n -t cgroup -o cpu cgroup /sys/fs/cgroup/cpu
+ mkdir /sys/fs/cgroup/cpuacct
+ mount -n -t cgroup -o cpuacct cgroup /sys/fs/cgroup/cpuacct
+ mkdir /sys/fs/cgroup/memory
+ mount -n -t cgroup -o memory cgroup /sys/fs/cgroup/memory
+ mkdir /sys/fs/cgroup/devices
+ mount -n -t cgroup -o devices cgroup /sys/fs/cgroup/devices
+ mkdir /sys/fs/cgroup/freezer
+ mount -n -t cgroup -o freezer cgroup /sys/fs/cgroup/freezer
+ mkdir /sys/fs/cgroup/blkio
+ mount -n -t cgroup -o blkio cgroup /sys/fs/cgroup/blkio
+ mkdir /sys/fs/cgroup/perf_event
+ mount -n -t cgroup -o perf_event cgroup /sys/fs/cgroup/perf_event
+ exit 0

And after boot:
cat /run/cgroup.debug
+ grep /sys/fs/cgroup /proc/mounts
+ [ -n ]
+ + grep -v ^# /etc/fstab -q cgroup
+ grep -q cgroup /proc/mounts
+ [ ! -e /proc/cgroups ]
+ mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroup /sys/fs/cgroup
+ sed -e 1d;s/\([^\t]\)\t.*$/\1/ /proc/cgroups
+ mkdir /sys/fs/cgroup/cpuset
+ mount -n -t cgroup -o cpuset cgroup /sys/fs/cgroup/cpuset
+ mkdir /sys/fs/cgroup/cpu
+ mount -n -t cgroup -o cpu cgroup /sys/fs/cgroup/cpu
+ mkdir /sys/fs/cgroup/cpuacct
+ mount -n -t cgroup -o cpuacct cgroup /sys/fs/cgroup/cpuacct
+ mkdir /sys/fs/cgroup/memory
+ mount -n -t cgroup -o memory cgroup /sys/fs/cgroup/memory
+ mkdir /sys/fs/cgroup/devices
+ mount -n -t cgroup -o devices cgroup /sys/fs/cgroup/devices
+ mkdir /sys/fs/cgroup/freezer
+ mount -n -t cgroup -o freezer cgroup /sys/fs/cgroup/freezer
+ mkdir /sys/fs/cgroup/blkio
+ mount -n -t cgroup -o blkio cgroup /sys/fs/cgroup/blkio
+ mkdir /sys/fs/cgroup/perf_event
+ mount -n -t cgroup -o perf_event cgroup /sys/fs/cgroup/perf_event
+ exit 0

And the diff:
$ diff -u /run/cgroup.debug{.1,}
--- /run/cgroup.debug.1 2013-01-08 09:25:32.756067804 +1300
+++ /run/cgroup.debug 2013-01-08 09:30:18.507748375 +1300
@@ -1,7 +1,6 @@
 + grep /sys/fs/cgroup /proc/mounts
 + [ -n ]
-+ grep -v ^# /etc/fstab
-+ grep -q cgroup
++ + grep -v ^# /etc/fstab -q cgroup
 + grep -q cgroup /proc/mounts
 + [ ! -e /proc/cgroups ]
 + mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroup /sys/fs/cgroup

Revision history for this message
Robert Collins (lifeless) wrote :
Download full text (4.9 KiB)

ls /etc/init
acpid.conf console-setup.conf friendly-recovery.conf modemmanager.conf mountkernfs.sh.conf procps.conf ssh.conf upstart-socket-bridge.conf
alsa-restore.conf container-detect.conf gdm.conf module-init-tools.conf mountnfs.sh.conf pulseaudio.conf tgt.conf upstart-udev-bridge.conf
alsa-store.conf control-alt-delete.conf hostname.conf mountall.conf mysql.conf qemu-kvm.conf tty1.conf ureadahead.conf
anacron.conf cron.conf hwclock.conf mountall-net.conf networking.conf rc.conf tty2.conf ureadahead-other.conf
apport.conf cryptdisks-enable.conf hwclock-save.conf mountall-reboot.conf network-interface.conf rcS.conf tty3.conf wait-for-state.conf
atd.conf cryptdisks-udev.conf hybrid-gfx.conf mountall.sh.conf network-interface-container.conf rc-sysinit.conf tty4.conf whoopsie.conf
avahi-daemon.conf cups.conf irqbalance.conf mountall-shell.conf network-interface-security.conf resolvconf.conf tty5.conf winbind.conf
binfmt-support.conf dbus.conf iscsi-network-interface.conf mountdevsubfs.sh.conf network-manager.conf rfkill-restore.conf tty6.conf
bluetooth.conf dmesg.conf libvirt-bin.conf mounted-debugfs.conf passwd.conf rfkill-store.conf udev.conf
cgconfig.conf ecryptfs-utils-restore.conf libvirt-cgconfig-wait.conf mounted-dev.conf plymouth.conf rsyslog.conf udev-fallback-graphics.conf
cgred.conf ecryptfs-utils-save.conf libvirt-cgred-wait.conf mounted-proc.conf plymouth-log.conf screen-cleanup.conf udev-finish.conf
cgroup-lite.conf failsafe.conf lightdm.conf mounted-run.conf plymouth-splash.conf setvtrgb.conf udevmonitor.conf
console.conf failsafe-x.conf lxc.conf mounted-tmp.conf plymouth-stop.conf shutdown.conf udevtrigger.conf
console-font.conf flush-early-job-log.conf lxc-net.conf mounted-var.conf plymouth-upstart-bridge.conf squid3.conf ufw.conf
robertc@lifelessdesktop:~$ ls /etc/init.d/
acpid bluetooth cups hwclock lightdm nullmailer procps rfkill-store skeleton udev-fallback-graphics whoopsie
acpi-support bootlogd dbus hwclock-save lxc ondemand pulseaudio rsync speech-dispatcher udev-finish winbind
alsa-restore brltty ...

Read more...

Serge Hallyn (serge-hallyn)
Changed in libcgroup (Ubuntu):
status: New → In Progress
no longer affects: lxc (Ubuntu)
Changed in libcgroup (Ubuntu):
importance: Undecided → High
assignee: nobody → Serge Hallyn (serge-hallyn)
summary: - error 'No cgroup mounted on the system' but cgroup mounted
+ cgroup-bin (deleted) init scripts stick around
Serge Hallyn (serge-hallyn)
description: updated
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package libcgroup - 0.38-1ubuntu2

---------------
libcgroup (0.38-1ubuntu2) raring; urgency=low

  * Properly remove the old init scripts. (LP: #1096771)
 -- Serge Hallyn <email address hidden> Mon, 07 Jan 2013 16:03:40 -0600

Changed in libcgroup (Ubuntu):
status: In Progress → Fix Released
Brian Murray (brian-murray)
Changed in libcgroup (Ubuntu Quantal):
status: New → Triaged
importance: Undecided → High
Revision history for this message
Brian Murray (brian-murray) wrote : Please test proposed package

Hello Robert, or anyone else affected,

Accepted libcgroup into quantal-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/libcgroup/0.38-1ubuntu1.12.10.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Changed in libcgroup (Ubuntu Quantal):
status: Triaged → Fix Committed
tags: added: verification-needed
Revision history for this message
Serge Hallyn (serge-hallyn) wrote :

Verified on quantal-proposed.

tags: added: verification-done
removed: verification-needed
Revision history for this message
Colin Watson (cjwatson) wrote : Update Released

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.

Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package libcgroup - 0.38-1ubuntu1.12.10.1

---------------
libcgroup (0.38-1ubuntu1.12.10.1) quantal-proposed; urgency=low

  * Properly remove the old init scripts. (LP: #1096771)
 -- Serge Hallyn <email address hidden> Tue, 08 Jan 2013 08:40:52 -0600

Changed in libcgroup (Ubuntu Quantal):
status: Fix Committed → Fix Released
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