test : compstudio.500.999
OS : linux (RH 6.2)
mode : Xcomp

Steps to reproduce :
1. cd /net/sqesvr.eng/export/vsn/GammaBase/Bugs/{BugID}
2. ksh doit {JAVA_HOME}

output :
java version "1.3.1-rc1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1-rc1-b17)
Java HotSpot(TM) Client VM (build 1.3.1rc1-b17-debug, compiled mode)
VM option '+CompileTheWorld'
VM option 'CompileTheWorldStartAt=500'
VM option 'CompileTheWorldStopAt=999'
CompileTheWorld : Compiling all classes in /.automount/sqesvr.eng/root/export/vsn/VM/testbase/testbase_js/src/jit/compiletheworld/jars/a-d/compstudio.jar

CompileTheWorld (500) : com/softwareag/bolero/IDE/tool/part/PatternParameter
CompileTheWorld (501) : Skipping com/softwareag/bolero/IDE/tool/part/PatternParameterTable

Unexpected Signal : 11 occurred at PC=0x403410f6
Function name=pending_exception__C6Thread
Library=/usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/hotspot/libjvm_g.so

Current Java thread:

Dynamic libraries:
08048000-0804c000 r-xp 0000000000000000 00:2e 2156703 /usr/local/java/jdk1.3.1/linux-i386/bin/i386/native_threads/java_g
0804c000-0804d000 rw-p 0000000000003000 00:2e 2156703 /usr/local/java/jdk1.3.1/linux-i386/bin/i386/native_threads/java_g
0804d000-0810a000 rwxp 0000000000000000 00:00 0
40000000-40013000 r-xp 0000000000000000 03:06 323842 /lib/ld-2.1.3.so
40013000-40014000 rw-p 0000000000012000 03:06 323842 /lib/ld-2.1.3.so
40014000-40016000 rw-p 0000000000000000 00:00 0
40016000-40017000 r--p 0000000000000000 03:05 666499 /usr/share/locale/en_US/LC_MESSAGES/SYS_LC_MESSAGES
40017000-40018000 r--p 0000000000000000 03:05 650245 /usr/share/locale/en_US/LC_MONETARY
40018000-40019000 r--p 0000000000000000 03:05 650247 /usr/share/locale/en_US/LC_TIME
40019000-4001a000 r--p 0000000000000000 03:05 650246 /usr/share/locale/en_US/LC_NUMERIC
4001a000-4001b000 rw-p 0000000000000000 00:00 0
4001c000-40027000 r-xp 0000000000000000 03:06 323888 /lib/libpthread-0.8.so
40027000-4002e000 rw-p 000000000000a000 03:06 323888 /lib/libpthread-0.8.so
4002e000-4002f000 rw-p 0000000000000000 00:00 0
4002f000-40039000 r-xp 0000000000000000 00:2e 3496584 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/native_threads/libhpi_g.so
40039000-4003a000 rw-p 0000000000009000 00:2e 3496584 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/native_threads/libhpi_g.so
4003a000-40467000 r-xp 0000000000000000 00:2e 3747881 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/client/libjvm_g.so
40467000-41262000 rw-p 000000000042c000 00:2e 3747881 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/client/libjvm_g.so
41262000-412bc000 rw-p 0000000000000000 00:00 0
412bc000-412be000 r-xp 0000000000000000 03:06 323858 /lib/libdl-2.1.3.so
412be000-412c0000 rw-p 0000000000001000 03:06 323858 /lib/libdl-2.1.3.so
412c0000-413ad000 r-xp 0000000000000000 03:06 323849 /lib/libc-2.1.3.so
413ad000-413b1000 rw-p 00000000000ec000 03:06 323849 /lib/libc-2.1.3.so
413b1000-413b5000 rw-p 0000000000000000 00:00 0
413b5000-413c7000 r-xp 0000000000000000 03:06 323862 /lib/libnsl-2.1.3.so
413c7000-413c9000 rw-p 0000000000011000 03:06 323862 /lib/libnsl-2.1.3.so
413c9000-413cb000 rw-p 0000000000000000 00:00 0
413cb000-413e7000 r-xp 0000000000000000 03:06 323860 /lib/libm-2.1.3.so
413e7000-413e8000 rw-p 000000000001b000 03:06 323860 /lib/libm-2.1.3.so
413e8000-4141c000 r-xp 0000000000000000 03:05 309039 /usr/lib/libstdc++-2-libc6.1-1-2.9.0.so
4141c000-41428000 rw-p 0000000000033000 03:05 309039 /usr/lib/libstdc++-2-libc6.1-1-2.9.0.so
41428000-4142a000 rw-p 0000000000000000 00:00 0
4142a000-4143d000 r-xp 0000000000000000 00:2e 2064731 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/libverify_g.so
4143d000-4143e000 rw-p 0000000000012000 00:2e 2064731 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/libverify_g.so
4143e000-4145f000 r-xp 0000000000000000 00:2e 2064732 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/libjava_g.so
4145f000-41461000 rw-p 0000000000020000 00:2e 2064732 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/libjava_g.so
41461000-41462000 rw-p 0000000000000000 00:00 0
41462000-41476000 r-xp 0000000000000000 00:2e 2064733 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/libzip_g.so
41476000-41479000 rw-p 0000000000013000 00:2e 2064733 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i386/libzip_g.so
41479000-41bce000 r--s 0000000000000000 00:2c 2724595 /.automount/sqesvr.eng/root/export/vsn/VM/testbase/testbase_js/src/jit/compiletheworld/jars/a-d/compstudio.jar
41bce000-41bf3000 rw-p 0000000000000000 00:00 0
41bf3000-4290a000 r--s 0000000000000000 00:2e 1714512 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/rt.jar
4290a000-42937000 rw-p 0000000000000000 00:00 0
42937000-42bd5000 r--s 0000000000000000 00:2e 1714513 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/i18n.jar
42bd5000-42beb000 r--s 0000000000000000 00:2e 1714500 /usr/local/java/jdk1.3.1/linux-i386/jre/lib/sunrsasign.jar
42beb000-44c6b000 rwxp 0000000000000000 00:00 0
44c6b000-44c93000 rw-p 0000000000000000 00:00 0
44c93000-44c9b000 r--p 0000000000000000 03:05 650243 /usr/share/locale/en_US/LC_COLLATE
44ca0000-4acff000 rwxp 0000000000000000 00:00 0
4acff000-4ad38000 rw-p 0000000000000000 00:00 0
4ad38000-4ad4e000 r--p 0000000000000000 03:05 650244 /usr/share/locale/en_US/LC_CTYPE
4ad55000-4ad5d000 r-xp 0000000000000000 03:06 323880 /lib/libnss_files-2.1.3.so
4ad5d000-4ad5e000 rw-p 0000000000007000 03:06 323880 /lib/libnss_files-2.1.3.so
4ad5e000-4add2000 rw-p 0000000000000000 00:00 0
bedfc000-bee00000 rwxp 0000000000000000 00:00 0
beefc000-beefe000 rwxp 0000000000000000 00:00 0
beefe000-bef00000 ---p 0000000000000000 00:00 0
beffc000-bf000000 rwxp 0000000000000000 00:00 0
bf0fc000-bf0fe000 rwxp 0000000000000000 00:00 0
bf0fe000-bf100000 ---p 0000000000000000 00:00 0
bf1fc000-bf200000 rwxp 0000000000000000 00:00 0
bf2fc000-bf2fe000 rwxp 0000000000000000 00:00 0
bf2fe000-bf300000 ---p 0000000000000000 00:00 0
bf3fc000-bf400000 rwxp 0000000000000000 00:00 0
bf4fc000-bf4fe000 rwxp 0000000000000000 00:00 0
bf4fe000-bf500000 ---p 0000000000000000 00:00 0
bf5fc000-bf600000 rwxp 0000000000000000 00:00 0
bf7fc000-bf800000 rwxp 0000000000000000 00:00 0
bfefc000-bfefe000 rwxp 0000000000000000 00:00 0
bfefe000-bff00000 ---p 0000000000000000 00:00 0
bfff7000-c0000000 rwxp ffffffffffff8000 00:00 0

Local Time = Tue Feb 27 16:52:28 2001
Elapsed Time = 21
#
# HotSpot Virtual Machine Error : 11
# Error ID : /BUILD_AREA/hotspot1.3.1/build/linux/../../src/share/vm/runtime/os.cpp, 716
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Client VM (1.3.1rc1-b17-debug compiled mode)
#
# An error report file has been saved as hs_err_pid6130.log.
# Please refer to the file for further information.
#
Current thread is 0x400
Dumping core ...

Note: The bug also happens with server -Xcomp.