After applying libsmjavaagentapi.so for a fix:
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGBUS (0xa) at pc=0xffffffff1f856940, pid=26888, tid=0x00000000000003a3
#
# JRE version: Java(TM) SE Runtime Environment (8.0_121-b13) (build 1.8.0_121-b13)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.121-b13 mixed mode solaris-sparc compressed oops)
# Problematic frame:
# C [libsmjavaagentapi.so+0x56940] void cm_sleep(unsigned long,long)+0x38
#
# Core dump written. Default location: /opt/psa/rel/fe/weblogic/domains/YCS1FE1/core or core.26888
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
Release : 12.6
Component : SITEMINDER -WEB AGENT FOR APACHE
libsmjavaagentapi.so containing a fix was replaced while weblogic was up and running. This caused the crash. Weblogic should have been stopped first. Once weblogic was restarted there was no problem.