The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
For a description of the known issues for Btrfs with Unbreakable Enterprise Kernel Release 4 Update 7, see Unbreakable Enterprise Kernel: Release Notes for Unbreakable Enterprise Kernel Release 4 Update 7.
For a description of the known issues for Btrfs with Unbreakable Enterprise Kernel Release 2 Quarterly Update 5, see the Oracle Linux Unbreakable Enterprise Kernel Release 2 Quarterly Update 5 Release Notes.