Setting as confirmed since this is 100% reproducible on current kernel and not a crash but just broken /proc/sys/net (missing entries) and possibly broken netns (those should be ns-specific).
** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1279041 Title: /proc/sys/net/ipv4/ip_local_reserved_ports not writable because of apparmor Status in “linux” package in Ubuntu: Confirmed Status in “lxc” package in Ubuntu: New Bug description: Description: Ubuntu Trusty Tahr (development branch) Release: 14.04 arch: amd64 Kernel: 3.13.0-8-generic #27-Ubuntu x86_64 GNU/Linux LXC container lxc-create --version 1.0.0.beta4 file: /proc/sys/net/ipv4/ip_local_reserved_port Does not exist and is not writable in a started container. Apparmor seems to block creating this file? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1279041/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp