Name: icR10030 Date: 01/15/2001



Platforms:
=============
RedHat 6.2

JDK, switches Info:
===================
java version "1.3.1beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1beta-b13)
Java HotSpot(TM) Client VM (build 1.3.1beta-b13-debug, mixed mode)

-XX:+ZombieALot -XX:+UseOnStackReplacement -XX:OnStackReplaceThreshold=3

How to reproduce:
====================
Run classfile Test under java_g:
java_g -XX:+ZombieALot -XX:+UseOnStackReplacement -XX:OnStackReplaceThreshold=3 Test

Classfile Test.java:
=====================
import java.awt.*;

public class Test {

   public static void main(String argv[]) {
        int err=0;
        Frame f=new Frame();
        f.setVisible(true);
        for(int i=0 ; i<1000; i++){
            int x=(new Double(Math.random()
                         *(Toolkit.getDefaultToolkit().getScreenSize().width
                         -300))).intValue();
            int y=(new Double(Math.random()
                 *(Toolkit.getDefaultToolkit().getScreenSize().height
                 -400))).intValue();

            f.setLocation(x,y);
     
            if (f.getLocation().x!=x || f.getLocation().y!=y)
                   err++;
                    
        }
     System.out.println(" "+err+" errors");
     System.exit(0);
  }
}


Test output:
=============
VM option '+ZombieALot'
VM option '+UseOnStackReplacement'
VM option 'OnStackReplaceThreshold=3'
#
# HotSpot Virtual Machine Error, Internal Error
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Fatal: bad pc for a nmethod found
#
# Error ID: /BUILD_AREA/hotspot1.3.1/build/linux/../../src/share/vm/code/nmethod.cpp, 954
#
# Problematic Thread: prio=1 tid=0x805f880 nid=0x59d7 runnable
#
Current thread is 0x400
Dumping core ...
Abort


Specific Machine Info:
=====================
Hostname: linux-13

======================================================================