Take pretty much any java application on a sun4u platform (I used a Creator 3D) and
start it with a heap size of about 2000mb and it exits on start up ..
creator-from-tacitus 7% arch -k
sun4u
creator-from-tacitus 8% java -mx2000m myjavaapp
**Out of memory, exiting**
SIGABRT 6* abort (generated by abort(3) routine)
    si_signo [6]: SIGABRT 6* abort (generated by abort(3) routine)
    si_errno [0]: Error 0
    si_code [0]: SI_USER [pid: 4600, uid: 16447]

Full thread dump:
Abort
creator-from-tacitus 9%


This does not happen on sun4m architecture