I tested this the xenial-proposed kernel (4.4.0-23) on a machine that was showing the exact symptoms described by the original reporter in Xenial. Here's the sequence of commands on the -proposed kernel:
root@bonnetmaker:~# uname -a Linux bonnetmaker 4.4.0-23-lowlatency #41-Ubuntu SMP PREEMPT Mon May 16 23:55:11 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux root@bonnetmaker:~# zfs create lxd/test -o mountpoint=/tmp/test root@bonnetmaker:~# zfs set acltype=posixacl lxd/test root@bonnetmaker:~# cd /tmp/test/ root@bonnetmaker:/tmp/test# mkdir a root@bonnetmaker:/tmp/test# setfacl -m default:user:100100:rwX a root@bonnetmaker:/tmp/test# setfacl -m user:100100:rwX a root@bonnetmaker:/tmp/test# getfacl -n a # file: a # owner: 0 # group: 0 user::rwx user:100100:rwx group::r-x mask::rwx other::r-x default:user::rwx default:user:100100:rwx default:group::r-x default:mask::rwx default:other::r-x root@bonnetmaker:/tmp/test# lxc-usernsexec -m u:0:100000:65536 -m g:0:100000:65536 -- /bin/bash bash: /root/.bashrc: Permission denied root@bonnetmaker:/tmp/test# ls -lh total 512 drwxrwxr-x+ 2 nobody nogroup 2 May 23 16:24 a root@bonnetmaker:/tmp/test# getfacl -n a # file: a # owner: 65534 # group: 65534 user::rwx user:100:rwx group::r-x mask::rwx other::r-x default:user::rwx default:user:100:rwx default:group::r-x default:mask::rwx default:other::r-x root@bonnetmaker:/tmp/test# Numbers check out - looks like it's working now! ** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1567558 Title: ZFS is confused by user namespaces (uid/gid mapping) when used with acltype=posixac To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1567558/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
