CompilerThread0: OutOfMemoryError Chunk::new Out of swap space?

Nitin Verma nitin.matrix at
Wed Dec 31 02:15:10 PST 2008

Hi Ivan,

$ java -version
java version "1.5.0_13"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_13-b05)
Java HotSpot(TM) Server VM (build 1.5.0_13-b05, mixed mode)

$ uname -a
Linux <hostname> 2.6.9-34.ELsmp #1 SMP Fri Feb 24 16:54:53 EST 2006
i686 i686 i386 GNU/Linux

JBoss is running with following options:
java -Xms1740m -Xmx1740m -server -XX:+UseParallelGC
-XX:MaxPermSize=256m -Djava.awt.headless=true
-Djava.endorsed.dirs=/home/y/libexec/jboss/lib/endorsed -classpath
org.jboss.Main -c pm

This is happening randomly on different cluster nodes.



On Sat, Dec 27, 2008 at 5:34 AM, Ivan Krylov <Ivan.Krylov at> wrote:
> Hi Nitin,
> This problem was never observed on any jdk versions later then 1.4.2.
> Reading the related bugs note I see a suggestion to use a VM option
> -XX:ThreadStackSize
> instead of Xss. Note sure why this makes a difference.
> What is the OS version that you are using?
> Depending on the OS and configuration there are different limitations on the
> maximum address space.
> Roughly speaking if you subtract some 200M from that maximum and divide it
> by stack size - that is how many threads you may create.
> Hope this helps,
> Ivan
> Nitin Verma wrote:
>> Hi All,
>> Is HotSpot bug solved in 1.7?
>> If not is there a workaround else than reducing -Xss?
>> Regards,
>> Nitin Verma

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