After rebooting FC 6, then start JBOSS. The total memory usage is about 600M. After accessing the web application deployed on the JBOSS for about 3 hours, the message usage is about 3.5G. Then shutdown the JBOSS. But the memory used is still shown as 3.5G using TOP command. Is this a memory leak? Java JVM 1.6 FC 6 JBoss 4.0.5GA Thanks for help. dave View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4044586#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...