[JBoss AOP] - “Running a 64-b it JVM is not supported on this platform” with java -d6 4 option on 64bit linux

Arun Balaji [https://community.jboss.org/people/arunbalajil] created the discussion

"“Running a 64-bit JVM is not supported on this platform” with java -d64 option on 64bit linux"

To view the discussion, visit: https://community.jboss.org/message/827931#827931

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I have a 64 bit linux os:
$ uname -p 
 x86_64
$ 

java -version listed: 
java version "1.6.0_33"
Java(TM) SE Runtime Environment (build 1.6.0_33-b04)
Java HotSpot(TM) 64-Bit Server VM (build 20.8-b03, mixed mode)
I am trying to run a 64 bit jvm with 4096 min heap size ( Its a heavy weight app ). When i add -d64 option i get the message 
 
  
JAVA_OPTS: -Dprogram.name=run.sh *-d64* -Xms4096m -Xmx4096m -XX:MaxPermSize=1024m -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled -Dorg.jboss.resolver.warning=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Dsun.lang.ClassLoader.allowArraySyntax=true -Dorg.jboss.ejb3.remoting.IsLocalInterceptor.passByRef=true -Djava.net.preferIPv4Stack=true -Djava.library.path=/opt/customer/JBossInstaller/jboss-ep-5.1/native/lib64

   
Running a 64-bit JVM is not supported on this platform
With out -d4 option and with heap size 2048 it works fine. But the memory isnt enough so i need to use 64 bit JVM with 4Gigs. Can anyone tell me why its not accepting d64 ? 

*Three servers having the same configuration , but  only one server having this issue.* 
Thanks in advance , Please help me on this issue.
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