JVM crashes on multi-threaded programs intermittently

[Tamal]

1. Release:
$ lsb_release -rd
Description: Ubuntu 9.10
Release: 9.10

2. Package:
$ apt-cache policy openjdk-6-jre
openjdk-6-jre:
  Installed: 6b16-1.6.1-3ubuntu1
  Candidate: 6b16-1.6.1-3ubuntu1
  Version table:
 *** 6b16-1.6.1-3ubuntu1 0
        500 http://in.archive.ubuntu.com karmic-updates/main Packages
        500 http://security.ubuntu.com karmic-security/main Packages
        100 /var/lib/dpkg/status
     6b16-1.6.1-1ubuntu3 0
        500 http://in.archive.ubuntu.com karmic/main Packages

3. Expected result:
$ java PrimeNumber 100 1
Count: 26
[1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97]

4. Actual result:
$ java PrimeNumber 100 1
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x010ca812, pid=3484, tid=3074091888
#
# JRE version: 6.0-b16
# Java VM: OpenJDK Client VM (14.0-b16 mixed mode, sharing linux-x86 )
# Distribution: Ubuntu 9.10, package 6b16-1.6.1-3ubuntu1
# Problematic frame:
# V [libjvm.so+0x2fc812]
#
# An error report file with more information is saved as:
# /home/tamal/svn/java/hs_err_pid3484.log
#
# If you would like to submit a bug report, please include
# instructions how to reproduce the bug and visit:
# https://bugs.launchpad.net/ubuntu/+source/openjdk-6/
#
Aborted

[Matthias Klose (doko)]

I cannot reproduce this in lucid anymore. Please reopen the report if appropriate