A system cannot be suspended if one or more DCSSs are accessed in exclusive-
writable mode. DCSS segment types EW, SW, and EN are always writable and
must be removed before a system is suspended.
User response
Remove all DCSSs of segment types EW, SW, and EN by writing the DCSS name to
the sysfs 'remove' attribute. Set the access mode for all DCSSs of segment
types SR and ER to read-only by writing 1 to the sysfs 'shared' attribute of
the DCSS. Then try again to suspend the system.