customer is running an intel server farm running Solaris 8 X86.
They started experiencing this in May. It's progressively gotten worse. Upto 80 outagages a month at one point.

Initially every crash ended with a truncated core file of only about 10% of what it should have been.

It was not until the use of -XX:+ShowMessageBoxOnError that we were able to collect a pstack, pmap and gcore of the failing process
A> What I see in the log file :
#
# HotSpot Virtual Machine Error, Internal Error
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Server VM (1.4.2_01-b06 mixed mode)
#
# Error ID: 53484152454432554E54494D450E435050018D
#
# Problematic Thread: prio=5 tid=0x08396a80 nid=0x25 runnable
#
Internal Error
Fatal: null exception in compiled code

Do you want to debug the problem?

All data collected is in /net/cores.ebay/cores/63833818
the cores are in the 24nov and 25nov sub directories.

interesting in the pstacks(this one is from the 25nov crash
there are several threads signitures

----------------- lwp# 29 / thread# 28 --------------------
 dfac892c nanosleep (95a6e9d0, 95a6e9c8)
 dfb87f90 __nanosleep (64) + 58
 debced77 __1cCosOinfinite_sleep6F_v_ () + 17
 dead5697 __1cMreport_error6Fipkci11E_v_ (1, dec90008, 18d, dec647fc, dec647f0,
95a6f35c) + 423
 dead4fc9 __1cMreport_fatal6Fpkci1E_v_ (dec90008, 18d, dec8ffe8) + 49
 de8fa3af __1cNSharedRuntimebGcompute_exception_return_address6Fi_pC_ (1) + 22d
 da034111 ???????? ()
----------------- lwp# 30 / thread# 29 --------------------

----------------- lwp# 45 / thread# 44 --------------------
 dfac892c nanosleep (9574e494, 9574e48c)
 dfb87f90 __nanosleep (64) + 58
 debcf817 __1cCosLmessage_box6Fpkc2_i_ (dec647fc, 9574ea00) + 56
 dead5638 __1cMreport_error6Fipkci11E_v_ (1, dec90008, 18d, dec647fc, dec647f0,
9574f22c) + 3c4
 dead4fc9 __1cMreport_fatal6Fpkci1E_v_ (dec90008, 18d, dec8ffe8) + 49
 de8fa3af __1cNSharedRuntimebGcompute_exception_return_address6Fi_pC_ (1) + 22d
 da034111 ???????? ()
----------------- lwp# 47 / thread# 46 --------------------


----------------- lwp# 56 / thread# 55 --------------------
 dfac892c nanosleep (9501e890, 9501e888)
 dfb87f90 __nanosleep (64) + 58
 debced77 __1cCosOinfinite_sleep6F_v_ () + 17
 dead52af __1cMreport_error6Fipkci11E_v_ (1, dec90008, 18d, dec647fc, dec647f0,
9501f21c) + 3b
 dead4fc9 __1cMreport_fatal6Fpkci1E_v_ (dec90008, 18d, dec8ffe8) + 49
 de8fa3af __1cNSharedRuntimebGcompute_exception_return_address6Fi_pC_ (1) + 22d
 da034111 ???????? ()
----------------- lwp# 59 / thread# 58 --------------------