This looks very similar to the following ZFS bug report https://github.com/zfsonlinux/zfs/issues/6881
It may indicate you have data corruption and degraded pool. It's hard to tell any further. Have you been able to resolve this issue? ** Bug watch added: Github Issue Tracker for ZFS #6881 https://github.com/zfsonlinux/zfs/issues/6881 ** Changed in: zfs-linux (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1771091 Title: zpool freezes importing older ZFS pool, blocks shotdown and system does not boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1771091/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
