Unable to start server using startWebLogic.sh

Question

I have worked with WebLogic for sometime, mainly on the Windows and Linux platforms. I am trying to get wl1034 running on a macbook pro running mac osx 10.6 (leopard) and am growing frustrated. I downloaded and installed the software. I then configured a domain, demo.
What I'm confused by is the following. If I start the server by running the following, it seems fine (I can hit the console on port 7001):
export MW_HOME=~/wls1034_dev
. $MW_HOME/wlserver/server/bin/setWLSEnv.sh
java -Dweblogic.management.username=weblogic -Dweblogic.management.password=weblogic123 -Dweblogic.Domain=demo -Dweblogic.Name=AdminServer -Dweblogic.ListenPort=7001 -Dweblogic.management.GenerateDefaultConfig=true -Xmx1024m -Xms1024m -XX:MaxPermSize=256m weblogic.Server
If, however, I try to start using the startWebLogic.sh script in my domain bin directory instead of the explicit java call, like I typically do, I have problems, can't hit the console. It's definitely in a weird state, I can't even ctrl-c kill it normally, I get the error below and have to kill -9.
<Feb 6, 2011 1:13:04 PM EST> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to RUNNING>
<Feb 6, 2011 1:13:04 PM EST> <Notice> <WebLogicServer> <BEA-000360> <Server started in RUNNING mode>
^CJava HotSpot(TM) 64-Bit Server VM warning: Exception java.lang.OutOfMemoryError occurred dispatching signal Unknown Signal to handler- the VM may need to be forcibly terminated
I can run with the first command but I want to understand what the difference is.

Answer 1

I had the same issue on my mac after updating the JVM to version 1.6.0_24.
I had to modify the startWeblogic.sh script and add the following line :
export USER_MEM_ARGS="-XX:MaxPermSize=256m"
so, to answer your question, the difference is that you need to give weblogic more permgen space.
This is done with the JVM arg : -XX:MaxPermSize=xxxm