Hello Serge, I think that the main point is the initial setup of the cgroup (directory) structure.
systemd tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,relatime,mode=755) cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,release_agent=/lib/systemd/systemd-cgroups- agent,clone_children,name=systemd) cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset,clone_children) cgroup on /sys/fs/cgroup/ns type cgroup (rw,nosuid,nodev,noexec,relatime,ns) cgroup on /sys/fs/cgroup/cpu type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,clone_children) cgroup on /sys/fs/cgroup/cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,clone_children) cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory,clone_children) cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices,clone_children) cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer,clone_children) cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,clone_children) cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio,clone_children) Above is on a Archlinux machine with systemd, initramfs is build without any systemd support. Btw systemd has detect LXC with $container=lxc in the TODO file. On the other hand a feature for lxc to set lxc.init=/bin/systemd would be nice. Best regards Joerg On Monday 18 July 2011 19:02:54 Serge E. Hallyn wrote: > (sorry, just realized postfix has been messing up my email, hope this > comes through ok) > > Quoting Ramez Hanna (rha...@informatiq.org): > > in f15 systemd whenever a user starts a process it looks like this > > ├ user > > │ ├ root > > │ │ └ 86 > > │ │ ├ 24814 -bash > > │ │ ├ 24848 top > > │ │ └ 31324 login -- root > > │ └ rhanna > > │ ├ 56 > > │ │ ├ 1002 pam: gdm-password > > │ │ ├ 1047 /usr/bin/enlightenment > > │ │ ├ 1058 dbus-launch --sh-syntax --exit-with-session > > │ │ ├ 1059 /bin/dbus-daemon --fork --print-pid 5 --print-address 7 > > --sess... > > > > so i would expect lxc to create it's cgroup under the user (root in this > > case) instead > > while it currebtly shows it like this > > boss is the name of the container > > ├ 24811 [kworker/1:0] > > ├ boss > > │ ├ 8914 init [3] > > │ ├ 9135 /usr/sbin/cron > > │ ├ 9146 /usr/sbin/sshd > > > > now I am not trying to use systemd-nspawn to replace lxc or anything, I > > am just using it to debug if i had problems in my container rootfs > > and well if nspawn doesn't screw up my host then it is doing something > > better > > Sorry I've not had time to read this thread through sufficiently, but the > above, at first glance, is telling. Does fedora's initramfs set up the > first part of the cgroup hierarchy? My guess is that's the problem and > so systemd is expecting /user to be already set up. So to support > systemd, we may need to either have a init wrapper to do some of the > initramfs cruft, or have lxc do it. Yuck to both. Yuck to use of > initramfs for anything other than loading needed kernel modules :) > > -serge > > > ---------------------------------------------------------------------------- > -- Storage Efficiency Calculator > This modeling tool is based on patent-pending intellectual property that > has been used successfully in hundreds of IBM storage optimization engage- > ments, worldwide. Store less, Store more with what you own, Move data to > the right place. Try It Now! > http://www.accelacomm.com/jaw/sfnl/114/51427378/ > _______________________________________________ > Lxc-users mailing list > Lxc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/lxc-users ------------------------------------------------------------------------------ Storage Efficiency Calculator This modeling tool is based on patent-pending intellectual property that has been used successfully in hundreds of IBM storage optimization engage- ments, worldwide. Store less, Store more with what you own, Move data to the right place. Try It Now! http://www.accelacomm.com/jaw/sfnl/114/51427378/ _______________________________________________ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
