Informix crashes when installing a .jar file

Hi. I'm having an issue with using J/Foundation on a Informix 11.70.FC2 installation. The database server crashes when I attempt to install a simple .jar file (e.g execute procedure sqlj.install_jar). The OS is RHEL 5.3. online.log output: 14:57:17 Booting Language <java> from module <$INFORMIXDIR/extend/krakatoa/lmjava.so> 14:57:17 Loading Module <$INFORMIXDIR/extend/krakatoa/lmjava.so> 14:57:17 The C Language Module </opt/IBM/informix/extend/krakatoa/lmjava.so> loaded 14:57:17 Loading Module <informix.jvp.dbapplet.impl.JarHandler> 14:57:17 Got the mutex 14:57:17 LD_LIBRARY_PATH=/opt/IBM/informix/extend/krakatoa/jre/bin/j9vm 14:57:17 VM args[0]= -Xss512k 14:57:17 VM args[1]= -Djava.security.policy=/opt/IBM/informix/tmp/JVM_security 14:57:17 VM args[2]= -Xms16m 14:57:17 VM args[3]= -Xmx16m 14:57:17 VM args[4]= exit 14:57:17 VM args[5]= abort 14:57:17 VM args[6]= -verbose:jni 14:57:17 VM args[7]= vfprintf 14:57:17 VM args[8]= -Djava.class.path=/opt/IBM/informix/extend/krakatoa/krakatoa.jar:/opt/IBM/inform ix/extend/krakatoa/jdbc.jar:/opt/IBM/informix/extend/krakatoa 14:57:17 Fatal error in ADM VP at mt.c:14027 14:57:17 Unexpected virtual processor termination, pid = 7109, exit = 0xff00 14:57:17 PANIC: Attempting to bring system down In the online.con file the following entry appears when Informix crashes: libjvm.so preloadLibrary(/opt/IBM/informix/extend/krakatoa/jre/lib/amd64/default/libj9vm24 .so): libj9thr24.so: cannot open shared object file: No such file or directory libjvm.so failed to load: j9vm24 tail: cannot open `+4' for reading: No such file or directory SENDER IS NULL NO MAIL WILL BE SENT grep: write error: Broken pipe The above shared object files all exist, so I'm not sure why this entry is appearing. Here are the shared library dependencies for libjvm.so: $ ldd $INFORMIXDIR/extend/krakatoa/jre/lib/amd64/default/libjvm.so linux-vdso.so.1 => (0x00007fff40e8b000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00002af8cc6ec000) libm.so.6 => /lib64/libm.so.6 (0x00002af8cc908000) libc.so.6 => /lib64/libc.so.6 (0x00002af8ccb8b000) /lib64/ld-linux-x86-64.so.2 (0x0000003062e00000) I have built another server which is virtually identical (has same OS/Informix version) and I don't have this problem when installing the same .jar file. The library dependencies on this machine are: $ ldd $INFORMIXDIR/extend/krakatoa/jre/lib/amd64/default/libjvm.so libpthread.so.0 => /lib64/libpthread.so.0 (0x00002b9fb4835000) libm.so.6 => /lib64/libm.so.6 (0x00002b9fb4a50000) libc.so.6 => /lib64/libc.so.6 (0x00002b9fb4cd3000) /lib64/ld-linux-x86-64.so.2 (0x0000003de3800000) Can anyone tell me what 'linux.vdso.so.1' is? Otherwise if you can shed some light on this issue, it would be appreciated? Brendon.