Messages like ‘HBA_GetAdapterPortAttributes adapter 4 port 0 reports a duplicate PortWWN, ignored’ are logged. These messages appear in groups, with the number of messages in the group increasing each time. This issue was introduced in Oracle Solaris 11.3 initial release (Solaris 11.3.0.30.0) and fixed in Oracle Solaris 11.3 SRU 7.5 (Solaris 11.3.7.5.0).