I would grateful to hear whether client, server or hotspot is regarded as the better setting in TOMCAT_OPTS for a busy site using Linux 2.2.14 SMP, Sun JDK 1.3.1, mod_jk. I think I have implemented the export _JAVA_SR_SIGNUM=12 fix to stop signal 11 errors. In fact, server seems to crash pretty quickly... but maybe that's something else we've got wrong... Thanks, Ben