Public bug reported: Following this guide
http://manpages.ubuntu.com/manpages/wily/man7/user_namespaces.7.html And run this program on ubuntu 15.04, it would have exception System information as following: Linux 3.19.0-30-generic ubuntu@testtmp:~$ id -u 1000 ubuntu@testtmp:~$ id -g 1000 ubuntu@testtmp:~$ ./userns_child_exec -p -m -U -M '0 1000 1' -G '0 1000 1' bash ERROR: write /proc/5629/gid_map: Operation not permitted About to exec bash ubuntu@testtmp:~$ root@testtmp:~# ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522650 Title: the user namespace in ubuntu 15.04 can not run correctly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1522650/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
