Hi, 

I'm getting a weird random JVM crashes with a web application deployed on tomcat6 using logback. As can be seen below, the crash apparently occurs on a code executed by logback. Attached is the hs_err_pid8814.log file generated. Any clues? 

# 
# A fatal error has been detected by the Java Runtime Environment: 
# 
#  SIGSEGV (0xb) at pc=0xf3712568, pid=8814, tid=8215360 
# 
# JRE version: 6.0_43-b01 
# Java VM: Java HotSpot(TM) Server VM (20.14-b01 mixed mode linux-x86 ) 
# Problematic frame: 
# j  ch.qos.logback.classic.spi.PackagingDataCalculator.getCodeLocation(Ljava/lang/Class;)Ljava/lang/String;+20 
# 
# An error report file with more information is saved as: 
# /java/apache-tomcat-6.0/server/petpg/hs_err_pid8814.log 
# 
# If you would like to submit a bug report, please visit: 
#   http://java.sun.com/webapps/bugreport/crash.jsp
#