Quoting Dirk Geschke (d...@lug-erding.de): > Hi Serge, > > > > Now I get two error messages: > > > > > > lxc_cgfs - cgroups/cgfs.c:lxc_cgroupfs_attach:2538 - could not move > > > attached process 22869 to cgroup of container > > > lxc_attach - attach.c:lxc_attach:992 - Expected to receive sequence > > > number 0: No such file or directory. > > > > Ok, if you look at the source, that message is a bit misleading - lxc > > never got around to trying to move the task into the cgroup, it failed > > to load a suitable set of cgroups data in the first place. > > > > You really should be using cfsng, not cgfs. Can you show your > > cgroup layout? (cat /proc/self/cgroup and mount | grep cgroup) > > hmm, how can I use cfsng instead of cgfs? I simply use the newest > cgmanager and start it the usual way: > > /usr/local/sbin/cgmanager --daemon -m name=systemd
Hm, you may be running cgmanager, but lxc is not recognizing that else you would be using cgmanager, not cgfs, as the cgroup driver. Since you are running cgmanager from /usr/local/sbin, is it possible that lxc is built looking for the cgmanager socket in a different path than what cgmanager is providing? > And > > $ cat /proc/self/cgroup > 14:name=systemd:/ > 13:pids:/ > 12:perf_event:/ > 11:net_prio:/ > 10:net_cls:/ > 9:memory:/ > 8:hugetlb:/ > 7:freezer:/ > 6:devices:/ > 5:debug:/ > 4:cpuset:/ > 3:cpuacct:/ > 2:cpu:/ > 1:blkio:/ Right, so the above shows that you do not have any cgroups which you can manipulate. Even freezer. So pam_cgm (or pam_cgfs) did not create cgroups for you. As suc, lxc recognizes that you are not allowed to create cgroups. > $ mount |grep cgroup > cgroup on /sys/fs/cgroup type tmpfs (rw,relatime,size=12k,mode=755) Ok, that's a tmpfs. Is anything mounted under that? what does cgm ping show? If that looks succesful, you could try sudo cgm create all me sudo cgm chown all $(id -u) $(id -g) cgm movepid all me $$ That should create a cgroup called 'me', make it owned by you, and move your shell into that cgroup. Then, from that shell, you should be able to create and lxc-attach to containers. > On older systems, where lxc-attach works, I see also: Well this is also interesting - you're saying that lxc-attach fails, but implying that lxc-start succeeded? How did lxc-start succeed? Did you start the containers from a different shell? > cgmfs 100 0 100 0% /run/cgmanager/fs > > Can this cause the problem? I don't see it on the newer system... > (I have no idea, where this mount is coming from...) > > > It might help if you set the lxc.cgroup.use in your personal > > lxc.system.conf (~/.config/lxc/lxc.conf) to only include the cgroups > > your container needs - just freezer is the bare minimum. That might > > get your container running without switching to cgfsng. > > hmm, you mean ~/.config/lxc/default.conf? I added it: > > ~$ grep lxc.cgroup.use .config/lxc/default.conf > lxc.cgroup.use = freezer Yeah that won't work since the above shows you do not own your freezer cgroup. > But it doesn't change anything, even if I add it to > > ~/.local/share/lxc/lxc-stretch/config > > It's all a little bit strange. As user root, I can use lxc-attach > with setting the right Path via option -P. But it does not work > with the unpriviliged user, who started the container... > > For me it is not a major problem, since I can attach as user > root. And if the network is up and running, I can manage it > via ssh. But I am a little bit irritated. > > The old system works with > > cgmanager 0.33 > lxc 1.0.7 > > The new system uses the newest versions: > > cgmanager 0.41 > lxc 2.0.8 > > Best regards > > Dirk > > -- > +----------------------------------------------------------------------+ > | Dr. Dirk Geschke / Plankensteinweg 61 / 85435 Erding | > | Telefon: 08122-559448 / Mobil: 0176-96906350 / Fax: 08122-9818106 | > | d...@geschke-online.de / d...@lug-erding.de / kont...@lug-erding.de | > +----------------------------------------------------------------------+ > _______________________________________________ > lxc-users mailing list > lxc-users@lists.linuxcontainers.org > http://lists.linuxcontainers.org/listinfo/lxc-users _______________________________________________ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users