Package: zfsutils-linux Version: 2.0.3-8 Severity: important First of all, I am not really sure if this bug belongs to zfs-dkms or to zfsutils-linux.
When mounting a parent and a child dataset in the wrong order (first child, then parent), it is not possible to unmount any of them with "zfs unmount" anymore: root@cespedes:~# zfs list NAME USED AVAIL REFER MOUNTPOINT tank 104K 832M 24K /tank root@cespedes:~# zfs create -p tank/foo/bar root@cespedes:~# zfs list NAME USED AVAIL REFER MOUNTPOINT tank 177K 832M 24K /tank tank/foo 48K 832M 24K /tank/foo tank/foo/bar 24K 832M 24K /tank/foo/bar root@cespedes:~# zfs mount tank /tank tank/foo /tank/foo tank/foo/bar /tank/foo/bar root@cespedes:~# zfs unmount tank/foo root@cespedes:~# zfs mount tank/foo/bar root@cespedes:~# zfs mount tank/foo root@cespedes:~# zfs mount tank /tank tank/foo/bar /tank/foo/bar tank/foo /tank/foo root@cespedes:~# zfs unmount tank/foo/bar cannot unmount '/tank/foo/bar': unmount failed root@cespedes:~# zfs unmount tank/foo cannot unmount '/tank/foo/bar': unmount failed Best, Juan Cespedes
