Public bug reported: When using a ZFS filesystem, if it is mounted and the bind-mounted, and then the original mount is unmounted, the bind mount will still be able to access the zfs filesystem contents, and zfs refuses to mount the original mount point.
This is upstream zfs bug 5796: https://github.com/zfsonlinux/zfs/issues/5796 Example repro steps (from upstream bug): zfs create tank/test zfs set mountpoint=/tank-test tank/test touch /tank-test/tank-test-file mount -B /tank-test /mnt zfs umount tank/test ls -al /tank-test/ (filesystem unmounted, file not found) ls -al /mnt (filesystem still referenced and file still found) zfs mount tank/test (will complain about dataset being mounted) ** Affects: linux Importance: Unknown Status: New ** Affects: linux (Ubuntu) Importance: Low Status: Confirmed ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: New => Confirmed ** Bug watch added: Github Issue Tracker for ZFS #5796 https://github.com/zfsonlinux/zfs/issues/5796 ** Also affects: linux via https://github.com/zfsonlinux/zfs/issues/5796 Importance: Unknown Status: Unknown -- 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/1699804 Title: zfs fails on remount when using bind mounts Status in Linux: New Status in linux package in Ubuntu: Confirmed Bug description: When using a ZFS filesystem, if it is mounted and the bind-mounted, and then the original mount is unmounted, the bind mount will still be able to access the zfs filesystem contents, and zfs refuses to mount the original mount point. This is upstream zfs bug 5796: https://github.com/zfsonlinux/zfs/issues/5796 Example repro steps (from upstream bug): zfs create tank/test zfs set mountpoint=/tank-test tank/test touch /tank-test/tank-test-file mount -B /tank-test /mnt zfs umount tank/test ls -al /tank-test/ (filesystem unmounted, file not found) ls -al /mnt (filesystem still referenced and file still found) zfs mount tank/test (will complain about dataset being mounted) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1699804/+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
