Jboss 4.0.4RC1 + jdk-1.5.0p2_3 on FreeBSD 5.4-RELEASE-p9 i386 --- VM crash

[Conrad Burger]

Hi 

We needed to upgrade to Jboss 4.0.4RC1. And since the upgrade the VM has been
crashing at random intervals. 

Version info :: Jboss 4.0.4RC1 + jdk-1.5.0p2_3 on FreeBSD 5.4-RELEASE-p9 i386

Using gdb I got this :: 

Core was generated by `java'.
Program terminated with signal 6, Aborted.
Reading symbols from /usr/lib/libpthread.so.1...(no debugging symbols found)...d
one.
Loaded symbols for /usr/lib/libpthread.so.1
Reading symbols from /lib/libc.so.5...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.5
Reading symbols from /usr/local/jdk1.5.0/jre/lib/i386/server/libjvm.so...(no deb
ugging symbols found)...done.
Loaded symbols for /usr/local/jdk1.5.0/jre/lib/i386/server/libjvm.so
Reading symbols from /lib/libm.so.3...(no debugging symbols found)...done.
Loaded symbols for /lib/libm.so.3
Reading symbols from /usr/local/jdk1.5.0/jre/lib/i386/native_threads/libhpi.so..
.(no debugging symbols found)...done.
Loaded symbols for /usr/local/jdk1.5.0/jre/lib/i386/native_threads/libhpi.so
Reading symbols from /usr/local/jdk1.5.0/jre/lib/i386/libverify.so...(no debuggi
ng symbols found)...done.
Loaded symbols for /usr/local/jdk1.5.0/jre/lib/i386/libverify.so
Reading symbols from /usr/local/jdk1.5.0/jre/lib/i386/libjava.so...(no debugging
 symbols found)...done.
Loaded symbols for /usr/local/jdk1.5.0/jre/lib/i386/libjava.so
Reading symbols from /usr/local/jdk1.5.0/jre/lib/i386/libzip.so...(no debugging
symbols found)...done.
Loaded symbols for /usr/local/jdk1.5.0/jre/lib/i386/libzip.so
Reading symbols from /usr/local/jdk1.5.0/jre/lib/i386/libnet.so...(no debugging
symbols found)...done.
Loaded symbols for /usr/local/jdk1.5.0/jre/lib/i386/libnet.so
Reading symbols from /usr/local/jdk1.5.0/jre/lib/i386/libmanagement.so...(no deb
ugging symbols found)...done.
Loaded symbols for /usr/local/jdk1.5.0/jre/lib/i386/libmanagement.so
Reading symbols from /usr/local/jdk1.5.0/jre/lib/i386/libnio.so...(no debugging
symbols found)...done.
Loaded symbols for /usr/local/jdk1.5.0/jre/lib/i386/libnio.so
Reading symbols from /usr/local/jdk1.5.0/jre/lib/i386/librmi.so...(no debugging
symbols found)...done.
Loaded symbols for /usr/local/jdk1.5.0/jre/lib/i386/librmi.so
Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols found)...done.
Loaded symbols for /libexec/ld-elf.so.1
#0  0x4809e31b in pthread_testcancel () from /usr/lib/libpthread.so.1
Cannot get thread info: generic error

I have been googling, but cannot find anything definitive. 

Is there anybody our there that could possibly help me or point me in the right
direction?

Thanks
Conrad