On Thu, May 29, 2014 at 11:14 PM, Serge Hallyn <serge.hal...@ubuntu.com> wrote: > Quoting Christian Seiler (christ...@iwakd.de): >> Hi, >> >> >> ### lxc-start output >> >> <30>systemd[1]: Starting Root Slice. >> >> <27>systemd[1]: Caught <SEGV>, dumped core as pid 12. >> >> <30>systemd[1]: Freezing execution. >> >> ### >> > >> > Hm, that's unfortunate. I thought lxc.mount.auto = cgroup:mixed >> > with cgfs would mount named subsystems? Christian? >> >> Yes, but this is actually controlled by lxc.cgroup.use (in >> lxc.system.conf(5), *not* lxc.container.conf(5)). Basically, we were >> conservative back then and decided to only touch cgroups (both for >> putting the container into and also for bind-mounting) that were either >> kernel cgroups or that the user explicitly specified. > > Ah, thanks. > > Fajar, does that fix it for you?
Unfortunately, no. # cat /etc/lxc/lxc.conf lxc.cgroup.use = @all lxc.cgroup.pattern = lxc-all/%n the last line is for test purposes, to verify that lxc is reading the right lxc.conf (the file doesn't exist by default). # grep cgroup /var/lib/lxc/f20/config lxc.mount.auto = cgroup:mixed # lxc-start -n f20 ... <30>systemd[1]: Starting Root Slice. <27>systemd[1]: Caught <SEGV>, dumped core as pid 12. <30>systemd[1]: Freezing execution. stopped at the same point. # lxc-attach -n f20 -- mount | grep cgroup cgroup on /sys/fs/cgroup type tmpfs (rw,relatime,size=12k,mode=755) none on /sys/fs/cgroup/cgmanager type tmpfs (rw,relatime,size=4k,mode=755) tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,mode=755) the cgroup mounts from the host is not bind-mounted in the container > >> BUT I think for the auto-mounting hook we should maybe change that to >> use *all* hierarchies. It's just that auto-mounting came a bit later and >> I just reused the existing code at that point and didn't properly think >> through the implications. I can provide a patch for changing this to all >> hierarchies for the auto-mounting case, but not today. >> >> In the mean time, you can just create a /etc/lxc/lxc.conf (or whatever >> LXC looks for on your system) with the following setting: >> >> lxc.cgroup.use = @all >> >> That will resort to using *all* named hierarchies. lxc does read the file /etc/lxc/lxc.conf that I created, verfied by the fact that lxc.cgroup.pattern works correctly. It does not, however, create the directory /sys/fs/cgroup/systemd/lxc-all/f20 (which, if I understand correctly, it should, since I use lxc.cgroup.use = @all) # ls -d /sys/fs/cgroup/*/lxc-all/f20 /sys/fs/cgroup/blkio/lxc-all/f20 /sys/fs/cgroup/cpuset/lxc-all/f20 /sys/fs/cgroup/hugetlb/lxc-all/f20 /sys/fs/cgroup/cpuacct/lxc-all/f20 /sys/fs/cgroup/devices/lxc-all/f20 /sys/fs/cgroup/memory/lxc-all/f20 /sys/fs/cgroup/cpu/lxc-all/f20 /sys/fs/cgroup/freezer/lxc-all/f20 /sys/fs/cgroup/perf_event/lxc-all/f20 # mount | grep cgroup none on /sys/fs/cgroup type tmpfs (rw,relatime,size=4k,mode=755) 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/memory type cgroup (rw,relatime,memory,release_agent=/run/cgmanager/agents/cgm-release-agent.memory) 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/blkio type cgroup (rw,relatime,blkio,release_agent=/run/cgmanager/agents/cgm-release-agent.blkio) 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/hugetlb type cgroup (rw,relatime,hugetlb,release_agent=/run/cgmanager/agents/cgm-release-agent.hugetlb) systemd on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,release_agent=/run/cgmanager/agents/cgm-release-agent.systemd,name=systemd) -- Fajar _______________________________________________ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users