The README file accompanying the 2.1.2-2 firmware available for download from My Oracle Support is lacking this list of bugs fixed in the 2.1.2-2 firmware. The README file accompanying the 2.1.3-4 through 2.1.9-1 firmware is correct and inclusive of these bugs.
15787181 – Segmentation fault in osm_mgrp_delete_port()
15809823 – Subnet Manager should have a lease time of 60 seconds
15810464 – getmaster CLI command should show local SM state
15957702 – Switch running master Subnet Manager should trigger handover at reboot
15805689 – Default high error rate threshold should be increased to 3456 symbol errors per 24h
15815591 – BridgeX and I4 firmware versions should be checked by fwverify
15810720 – Do not allow to create partition without specifying P_Key