** Changed in: linux
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1699804
Title:
zfs fails on remount when using bind mounts
Status in Linux:
Fix Released
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)
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