After updating to that kernel (under 14.04), the problem is not fixed. $ uname -a Linux kit1 3.19.0-031900rc4-generic #201501112135 SMP Sun Jan 11 21:36:48 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
* The LXC instance still does not start if the <memtune><swap_hard_limit unit='KiB'>131072</swap_hard_limit></memtune> setting is included. $ virsh -c lxc: start gold-lxc-20140717 error: Failed to start domain gold-lxc-20140717 error: internal error: guest failed to start: Unable to write to '/sys/fs/cgroup/memory/machine/gold-lxc-20140717.libvirt-lxc/memory.memsw.limit_in_bytes': No such file or directory $ ls /sys/fs/cgroup/memory/machine/gold-lxc-20140717.libvirt-lxc/ cgroup.clone_children memory.kmem.tcp.failcnt memory.oom_control cgroup.event_control memory.kmem.tcp.limit_in_bytes memory.pressure_level cgroup.procs memory.kmem.tcp.max_usage_in_bytes memory.soft_limit_in_bytes memory.failcnt memory.kmem.tcp.usage_in_bytes memory.stat memory.force_empty memory.kmem.usage_in_bytes memory.swappiness memory.kmem.failcnt memory.limit_in_bytes memory.usage_in_bytes memory.kmem.limit_in_bytes memory.max_usage_in_bytes memory.use_hierarchy memory.kmem.max_usage_in_bytes memory.move_charge_at_immigrate notify_on_release memory.kmem.slabinfo memory.numa_stat tasks (Note it does not include memory.memsw.limit_in_bytes) * After reverting to kernel 3.13.0-43 and doing the same lxc start which fails in the same way: $ ls /sys/fs/cgroup/memory/machine/gold-lxc-20140717.libvirt-lxc/ cgroup.clone_children memory.kmem.tcp.failcnt memory.oom_control cgroup.event_control memory.kmem.tcp.limit_in_bytes memory.pressure_level cgroup.procs memory.kmem.tcp.max_usage_in_bytes memory.soft_limit_in_bytes memory.failcnt memory.kmem.tcp.usage_in_bytes memory.stat memory.force_empty memory.kmem.usage_in_bytes memory.swappiness memory.kmem.failcnt memory.limit_in_bytes memory.usage_in_bytes memory.kmem.limit_in_bytes memory.max_usage_in_bytes memory.use_hierarchy memory.kmem.max_usage_in_bytes memory.move_charge_at_immigrate notify_on_release memory.kmem.slabinfo memory.numa_stat tasks Looks identical to me. ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1348688 Title: kernel does not support limiting swap usage (memory.memsw.limit_in_bytes missing) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1348688/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
