When a processor cache line encounters an uncorrectable error (UE) the fault manager is supposed to attempt to retire the cache line involved in the error. Because of this defect, the fault manager might not retire the faulty cache line and instead reports the entire chip as faulted.
Workaround: Schedule a replacement of the FRU containing the faulty component. For additional information about UEs in processor cache lines, search for message ID SUN4V-8002-WY on My Oracle Support site: http://support.oracle.com