This failure is intermittent. I happened after running the specjvm98
benchmarks in a loop for about 5 hours on machine krajy. The command line was

java -server -showversion -Xmx32m SpecApplication -a -s100 -m5 -M5 _227_mtrt _202_jess _201_compress _209_db _222_mpegaudio _228_jack _213_javac

The error message at the end of the run is

======= _213_javac Starting =======
Run 0 start. Total memory=2297856 free memory=1348832
Javac benchmark starting...
Javac benchmark starting...

Unexpected Signal : 11 occurred at PC=0xDEB9567B
Function=[Unknown. Nearest: sysThreadAvailableStackWithSlack+0x7AAB]
Library=/net/koori.sfbay/promoted/v02/jdk/1.4.1/beta/b09/binaries/solaris-i586/jre/lib/i586/server/libjvm.so

Current Java thread:

Dynamic libraries:
0x8050000 /import/java/jdk1.4.1/solaris-i586/bin/java
0xdfb70000 /usr/lib/libthread.so.1
0xdfbb0000 /usr/lib/libdl.so.1
0xdfab0000 /usr/lib/libc.so.1
0xde800000 /net/koori.sfbay/promoted/v02/jdk/1.4.1/beta/b09/binaries/solaris-i586/jre/lib/i586/server/libjvm.so
0xdfa40000 /usr/lib/libCrun.so.1
0xdfa20000 /usr/lib/libsocket.so.1
0xdf980000 /usr/lib/libnsl.so.1
0xdf960000 /usr/lib/libm.so.1
0xdfa70000 /usr/lib/libw.so.1
0xdf920000 /usr/lib/libmp.so.2
0xdf8f0000 /net/koori.sfbay/promoted/v02/jdk/1.4.1/beta/b09/binaries/solaris-i586/jre/lib/i586/native_threads/libhpi.so
0xdf8c0000 /net/koori.sfbay/promoted/v02/jdk/1.4.1/beta/b09/binaries/solaris-i586/jre/lib/i586/libverify.so
0xdf870000 /net/koori.sfbay/promoted/v02/jdk/1.4.1/beta/b09/binaries/solaris-i586/jre/lib/i586/libjava.so
0xdf840000 /net/koori.sfbay/promoted/v02/jdk/1.4.1/beta/b09/binaries/solaris-i586/jre/lib/i586/libzip.so

Local Time = Tue Apr 23 12:13:25 2002
Elapsed Time = 633
#
# HotSpot Virtual Machine Error : 11
# Error ID : 4F530E43505002D7
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Server VM (1.4.1-beta-b09 mixed mode)
#
# An error report file has been saved as hs_err_pid17949.log.
# Please refer to the file for further information.
#
./specjvm98[26]: 17949 Abort(coredump)

The log is attached. See the comments for a dbx retrace.