Quoting Lars Kellogg-Stedman (l...@oddbit.com): > I'm runing LXC 0.7.5 under Fedora 17 (3.7.3-101.fc17.x86_64). I've been > banging my head against LXC for a bit today. My latest problem is that > if a container fails to start, I run into this situation: > > # lxc-start -n node0 > lxc-start: Device or resource busy - failed to remove previous cgroup > '/sys/fs/cgroup/systemd/node0' > lxc-start: failed to spawn 'node0' > lxc-start: Device or resource busy - failed to remove cgroup > '/sys/fs/cgroup/systemd/node0' > > There does indeed exist a cgroup by this name: > > # find /sys/fs/cgroup -name node0 > /sys/fs/cgroup/systemd/node0 > > But it has no tasks: > > # cat /sys/fs/cgroup/systemd/node0/tasks > # > > It does, however, have a number of child cgroups: > > # find /sys/fs/cgroup/systemd/node0/ -type d > /sys/fs/cgroup/systemd/node0/ > /sys/fs/cgroup/systemd/node0/system > /sys/fs/cgroup/systemd/node0/system/getty@.service > /sys/fs/cgroup/systemd/node0/system/getty@.service/tty1 > /sys/fs/cgroup/systemd/node0/system/systemd-logind.service > /sys/fs/cgroup/systemd/node0/system/dbus.service > /sys/fs/cgroup/systemd/node0/system/systemd-journald.service > /sys/fs/cgroup/systemd/node0/system/sys-kernel-config.mount > /sys/fs/cgroup/systemd/node0/system/dev-hugepages.mount > /sys/fs/cgroup/systemd/node0/system/sys-kernel-debug.mount > /sys/fs/cgroup/systemd/node0/system/sys-fs-fuse-connections.mount > /sys/fs/cgroup/systemd/node0/system/dev-mqueue.mount > > I can remove these by hand: > > # find /sys/fs/cgroup/systemd/node0/ -type d | tac | xargs rmdir > > ...but is there any way to prevent this situation from happening in the > first place?
No idea about the systemd aspects, but the best way to get those cgroups to be autoremoved is using a release_agent. See Documentation/cgroups/cgroups.txt in the kernel source. -serge ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnnow-d2d _______________________________________________ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
