Bug 154147

Description of problem:
When i use the applet found on this site:
http://www.stud.ntnu.no/~halvorlu/planetsim.jsp
my fedora 2 computer chrashes hard. Happens on both kernel
2.6.10-1.771_FC2
2.6.10-1.12_FC2
Java version:

mozilla-j2re-1.4.2-11.1.fc2.rf
j2re-1.4.2-11.1.fc2.rf
as found here:
http://dag.wieers.com/packages/j2re/

Browser is epiphany:
epiphany-1.2.10-0.2.1

The computer locks hard, only thing responding is moving the mouse cursor and
numlock. Caps, scroll, network, Viritual Console - any imput at all - is dead. I
can only get controll by holding down the power button of my computer untill
power cuts.

I have also quite recently seen a similar crash induced by my own program,
GravCalc (not the newest version). This has only happened once in a dozen runs,
so it isn't as easily reproducible. (SDL 1.2.7-3)  The commonality seems to be
high load (even if the java app only generates about 50% load.) Sources found here:
http://forum.hardware.no/index.php?showtopic=400581&st=0&#entry3956054
(i ran it through xterm, as gnome-terminal was way to slow with that printf ()
in the main loop activated.)

This computer is a 650 mhz Pentium 3 - compaq deskpro. It has always been stable
before, so i don't see a hardware failure as a probable cause. Ofcourse -
nothing is impossible

Version-Release number of selected component (if applicable):
already mentioned

How reproducible:
every time i tried. Takes different time to get there - first time, it
completely froze at once, next time i was able to use the applet in about 10
minutes.

Steps to Reproduce:
1. Install epiphany an SUN J2RE from the mentioned sources
2. Go to the webpage
3. Muck around a bit
4. BOOM!
  
Actual results:
Computer freezes

Expected results:
Computer damn stable. No freezes. Lets me play with tossing planets around.

Additional info: