** Description changed:
+ ============================================
+ SRU Justification:
+ 1. Impact: Customized installations which mount cgroups in nonstandard
+ locations may cause cgroup-lite to fail to start correctly
+ 2. Development fix: have cgroup-lite do nothing if cgroups are found mounted
+ anywhere at all
+ 3. Stable fix: same as development fix.
+ 4. Test case:
+ Create an upstart job:
+ {{{
+ start on starting cgroup-lite
+ pre-start script
+ mkdir -p /mnt2
+ mount -t cgroup -o freezer freezer /mnt2
+ end script
+ }}}
+ reboot and check whether cgroup-lite is working. Manually try
+ {{{
+ stop cgroup-lite; start cgroup-lite
+ }}}
+ and check for errors
+ 5. Regression potential: If a system has a mount with 'cgroup' in the
+ name which is not a cgroup mount, cgroup-lite will no longer mount cgroups.
+
+ ============================================
+
Similar symptom to https://bugs.launchpad.net/ubuntu/+source/cgroup-
lite/+bug/929381, but obviously a different issue:
$ sudo apt-get install cgroup-lite
Reading package lists... Done
- Building dependency tree
+ Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
- cgroup-lite
+ cgroup-lite
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/3,490 B of archives.
After this operation, 46.1 kB of additional disk space will be used.
Selecting previously unselected package cgroup-lite.
(Reading database ... 241656 files and directories currently installed.)
Unpacking cgroup-lite (from .../cgroup-lite_1.1_all.deb) ...
Processing triggers for ureadahead ...
Setting up cgroup-lite (1.1) ...
start: Job failed to start
invoke-rc.d: initscript cgroup-lite, action "start" failed.
dpkg: error processing cgroup-lite (--configure):
- subprocess installed post-installation script returned error exit status 1
+ subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
- cgroup-lite
+ cgroup-lite
E: Sub-process /usr/bin/dpkg returned an error code (1)
$ sudo start cgroup-lite
start: Job failed to start
$ ls -ld /usr/bin/cgroups-mount
-rwxr-xr-x 1 root root 850 Feb 9 00:56 /usr/bin/cgroups-mount
$ ls -ld /sys/fs/cgroup
drwxr-xr-x 2 root root 0 Apr 19 13:37 /sys/fs/cgroup
$ sudo /usr/bin/cgroups-mount
mount: cgroup already mounted or /sys/fs/cgroup/cpu busy
mount: according to mtab, cgroup is mounted on /sys/fs/cgroup
$ echo $?
32
$ mount | grep cgroup
none on /dev/cgroup/cpu type cgroup (rw,cpu,cpuacct)
none on /dev/cgroup/devices type cgroup (rw,devices)
cgroup on /sys/fs/cgroup type tmpfs (rw,uid=0,gid=0,mode=0755)
$ sudo /usr/bin/cgroups-umount
umount: cpu: not mounted
umount: cpuacct: not found
umount: memory: not found
umount: devices: not found
umount: freezer: not found
umount: net_cls: not found
umount: perf_event: not found
$ mount | grep cgroup
none on /dev/cgroup/cpu type cgroup (rw,cpu,cpuacct)
none on /dev/cgroup/devices type cgroup (rw,devices)
$ sudo /usr/bin/cgroups-mount
mount: cgroup already mounted or /sys/fs/cgroup/cpu busy
mount: according to mtab, cgroup is mounted on /sys/fs/cgroup
$ echo $?
32
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/985884
Title:
cgroup lite postinst fails (init script doesn't start)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/cgroup-lite/+bug/985884/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
