[pkg-lxc-devel] Bug#823864: Bug#823864: libpam-cgfs: installing libpam-cgfs from backport on stable prevent session from opening
Xavier Quost
xquost2000 at yahoo.fr
Sun Jun 5 15:41:58 UTC 2016
Hi Evgeni
Still sorry for this late answer, I'm back home now and will be able to answer more quickly.
>Any pointers how to reproduce your setup would be awesome.
Yes, and good news, I was able to precise the problem and to reproduce it on another jessie + backports box :
To reproduce the problem, both boxes need :
(1) sysinit (no systemd) as system startup
(2) cgroupfs-mount installed
Both boxes use kernel 4.5.0-0.bpo.2-amd64
# dpkg --list | grep cgroup
ii cgmanager 0.33-2+deb8u2 amd64 Central cgroup manager daemon
ii cgroup-bin 0.41-6 all control and monitor control groups (transitional package)
ii cgroup-tools 0.41-6 amd64 control and monitor control groups (tools)
ii cgroupfs-mount 1.1 all Light-weight package to set up cgroupfs mounts
ii libcgmanager0:amd64 0.33-2+deb8u2 amd64 Central cgroup manager daemon (client library)
ii libcgroup1:amd64 0.41-6 amd64 control and monitor control groups (library)
ii libpam-cgfs 2.0.0-3~bpo8+1 amd64 PAM module for managing cgroups for LXC
# dpkg --list | grep sysvi
ii sysvinit-core 2.88dsf-59 amd64 System-V-like init utilities
ii sysvinit-utils 2.88dsf-59.3 amd64 System-V-like utilities
# stat /proc/1/exe
Fichier : « /proc/1/exe » -> « /sbin/init »
Taille : 0 Blocs : 0 Blocs d'E/S : 1024 lien symbolique
Périphérique : 4h/4d Inœud : 14273 Liens : 1
Accès : (0777/lrwxrwxrwx) UID : ( 0/ root) GID : ( 0/ root)
Accès : 2016-06-05 16:32:37.623997097 +0200
Modif. : 2016-06-05 16:32:37.619997096 +0200
Changt : 2016-06-05 16:32:37.619997096 +0200
Créé : -
cgroupfs-mount change /sys/fs/cgroup mount point
without this package :
# mount |grep "/sys/"
pstore on /sys/fs/pstore type pstore (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
cgroup on /sys/fs/cgroup type tmpfs (rw,relatime,size=12k)
with this package
# mount |grep "/sys/"
pstore on /sys/fs/pstore type pstore (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
cgroup on /sys/fs/cgroup type tmpfs (rw,relatime,size=12k)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,relatime,cpuset,release_agent=/run/cgmanager/agents/cgm-release-agent.cpuset,clone_children)
cgroup on /sys/fs/cgroup/cpu type cgroup (rw,relatime,cpu,release_agent=/run/cgmanager/agents/cgm-release-agent.cpu)
cgroup on /sys/fs/cgroup/cpuacct type cgroup (rw,relatime,cpuacct,release_agent=/run/cgmanager/agents/cgm-release-agent.cpuacct)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,relatime,blkio,release_agent=/run/cgmanager/agents/cgm-release-agent.blkio)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,relatime,devices,release_agent=/run/cgmanager/agents/cgm-release-agent.devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,relatime,freezer,release_agent=/run/cgmanager/agents/cgm-release-agent.freezer)
cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,relatime,net_cls,release_agent=/run/cgmanager/agents/cgm-release-agent.net_cls)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,relatime,perf_event,release_agent=/run/cgmanager/agents/cgm-release-agent.perf_event)
cgroup on /sys/fs/cgroup/net_prio type cgroup (rw,relatime,net_prio,release_agent=/run/cgmanager/agents/cgm-release-agent.net_prio)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,relatime,pids,release_agent=/run/cgmanager/agents/cgm-release-agent.pids)
I don't remember why this package was originally installed; I guess I was trying to install unprivileged lxc on the box.
I will retrace a step by step installation without this package to check if it's required for this purpose
Please, what would be the following steps ?
Thanks, Best regards
XQ
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