RHEL7 boots up to emergency mode when using a separate journal for XFS

Issue

• A RHEL7 machine boots to emergency mode if a new XFS filesystem is created that uses a separate device for the journal with the logdev argument.

• It works fine to mount the filesystem manually, but if an entry is added in /etc/fstab and the machine is rebooted, it stops at the "Welcome to emergency mode" prompt.

• If 'Ctrl+D" is pressed, the system boots normally and automatically mounts the filesystem.

• If the filesystem is created without a separate journal, the machine boots normally.

• The filesystem was created as following:

# lvcreate -L 256M -n lv_journal01 rhel
# mkfs.xfs -l logdev=/dev/rhel/lv_journal01 /dev/sdb
# vi /etc/fstab
# mount -a