[Bug 823847] Re: mount -a doesn't mount cgroups

[Marc Cluet]

Problem still in latest version of mount for Oneiric


root at oneiric-openstack:~# mount -l
/dev/sda1 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)
fusectl 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 /cgroups type cgroup (rw,cpuacct,memory,devices,cpu,freezer,blkio)
root at oneiric-openstack:~# 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=503108k,nr_inodes=125777,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=204516k,mode=755 0 0
fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0
/dev/disk/by-uuid/398a178b-3804-4e89-8cb8-7892ff17d76e / ext4 rw,relatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered 0 0
none /var/lib/ureadahead/debugfs debugfs 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

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https://bugs.launchpad.net/bugs/823847

Title:
  mount -a doesn't mount cgroups

Status in “util-linux” package in Ubuntu:
  New

Bug description:
  How to reproduce:

  Add line in /etc/fstab

  none /cgroups cgroup cpuacct,memory,devices,cpu,freezer,blkio 0 0

  
  Run mount -a

  mount -l shows cgroups as mounted, but doing cat /proc/mounts it
  doesn't

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: mount 2.19.1-2ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-7.9-generic 3.0.0
  Uname: Linux 3.0.0-7-generic x86_64
  Architecture: amd64
  Date: Wed Aug 10 03:39:03 2011
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110802.1)
  ProcEnviron:
   LANGUAGE=en_US:
   LC_CTYPE=en_US.UTF-8
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: util-linux
  UpgradeStatus: No upgrade log present (probably fresh install)

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