Customer is experiencing Hotspot crashes periodically with 1.3.1_06 at high load.

Here is the stack trace from gdb on the system where the crash occured:

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This GDB was configured as "sparc-sun-solaris2.8"...
(no debugging symbols found)...
Core was generated by
`/usr/local/woodstock/weblogic/6_1_sp2/jdk/bin/../bin/sparc/native_threads/j
ava'.
Program terminated with signal 9, Killed.
Reading symbols from /usr/lib/libthread.so.1...(no debugging symbols
found)...
done.
Loaded symbols for /usr/lib/libthread.so.1
Reading symbols from /usr/lib/libdl.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libdl.so.1
Reading symbols from /usr/lib/libc.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libc.so.1
Reading symbols from /usr/platform/SUNW,Sun-Fire/lib/libc_psr.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/platform/SUNW,Sun-Fire/lib/libc_psr.so.1
Reading symbols from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
Reading symbols from /usr/lib/libCrun.so.1...(no debugging symbols found)...
done.
Loaded symbols for /usr/lib/libCrun.so.1
Reading symbols from /usr/lib/libsocket.so.1...(no debugging symbols
found)...
done.
Loaded symbols for /usr/lib/libsocket.so.1
Reading symbols from /usr/lib/libnsl.so.1...(no debugging symbols found)...
done.
Loaded symbols for /usr/lib/libnsl.so.1
Reading symbols from /usr/lib/libm.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libm.so.1
Reading symbols from /usr/lib/libw.so.1...
warning: Lowest section in /usr/lib/libw.so.1 is .hash at 00000074
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libw.so.1
Reading symbols from /usr/lib/libmp.so.2...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libmp.so.2
Reading symbols from
/usr/j2sdk1_3_1_06/jre/lib/sparc/native_threads/libhpi.so...(no debugging
symbols found)...done.
Loaded symbols for /usr/j2sdk1_3_1_06/jre/lib/sparc/native_threads/libhpi.so
Reading symbols from /usr/j2sdk1_3_1_06/jre/lib/sparc/libverify.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/j2sdk1_3_1_06/jre/lib/sparc/libverify.so
Reading symbols from /usr/j2sdk1_3_1_06/jre/lib/sparc/libjava.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/j2sdk1_3_1_06/jre/lib/sparc/libjava.so
Reading symbols from /usr/j2sdk1_3_1_06/jre/lib/sparc/libzip.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/j2sdk1_3_1_06/jre/lib/sparc/libzip.so
Reading symbols from /usr/j2sdk1_3_1_06/jre/lib/sparc/libnet.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/j2sdk1_3_1_06/jre/lib/sparc/libnet.so
Reading symbols from /usr/lib/nss_files.so.1...(no debugging symbols
found)...
done.
Loaded symbols for /usr/lib/nss_files.so.1
Reading symbols from /usr/j2sdk1_3_1_06/jre/lib/sparc/libioser12.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/j2sdk1_3_1_06/jre/lib/sparc/libioser12.so
#0 0xfac676c4 in ?? ()
(gdb)
(gdb) where
#0 0xfac676c4 in ?? ()
#1 0xfac7c060 in ?? ()
#2 0xfac15558 in ?? ()
#3 0xab890 in ?? ()
#4 0xab890 in ?? ()
#5 0xab9d4 in ?? ()
#6 0xab9d4 in ?? ()
#7 0xab9f8 in ?? ()
#8 0xab890 in ?? ()
#9 0xab86c in ?? ()
#10 0xab890 in ?? ()
#11 0xfe5324f0 in __1cMStubRoutinesG_code1_ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#12 0xfe0cbe9c in
__1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArgument
s_pnGThread__v_ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#13 0xfe174448 in
__1cJJavaCallsEcall6FpnJJavaValue_nMmethodHandle_pnRJavaCallArguments_pnGThr
ead__v_ () from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#14 0xfe26e468 in
__1cKReflectionGinvoke6FnTinstanceKlassHandle_nMmethodHandle_nGHandle_lnOobj
ArrayHandle_nJBasicType_4lpnGThread__pnHoopDesc__ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#15 0xfe26e940 in
__1cKReflectionNinvoke_method6FpnHoopDesc_nGHandle_nOobjArrayHandle_pnGThrea
d__2_ () from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#16 0xfe26c0d8 in JVM_InvokeMethod ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#17 0xfe7ca318 in Java_java_lang_reflect_Method_invoke ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/libjava.so
#18 0xfadcfd6c in ?? ()
#19 0xfae32d30 in ?? ()
#20 0xfac17218 in ?? ()
#21 0xab890 in ?? ()
#22 0xfac15650 in ?? ()
#23 0xface5e48 in ?? ()
#24 0xfad2ff74 in ?? ()
#25 0xfac2004c in ?? ()
#26 0xab890 in ?? ()
#27 0xab9f8 in ?? ()
#28 0xab86c in ?? ()
#29 0xfe5324f0 in __1cMStubRoutinesG_code1_ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#30 0xfe0cbe9c in
__1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArgument
s_pnGThread__v_ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#31 0xfe174448 in
__1cJJavaCallsEcall6FpnJJavaValue_nMmethodHandle_pnRJavaCallArguments_pnGThr
ead__v_ () from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#32 0xfe26e468 in
__1cKReflectionGinvoke6FnTinstanceKlassHandle_nMmethodHandle_nGHandle_lnOobj
ArrayHandle_nJBasicType_4lpnGThread__pnHoopDesc__ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#33 0xfe26e940 in
__1cKReflectionNinvoke_method6FpnHoopDesc_nGHandle_nOobjArrayHandle_pnGThrea
d__2_ () from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#34 0xfe26c0d8 in JVM_InvokeMethod ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#35 0xfe7ca318 in Java_java_lang_reflect_Method_invoke ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/libjava.so
#36 0xae704 in ?? ()
#37 0xab890 in ?? ()
#38 0xab9f8 in ?? ()
#39 0xab9f8 in ?? ()
#40 0xab9f8 in ?? ()
#41 0xab9f8 in ?? ()
#42 0xab9f8 in ?? ()
#43 0xab890 in ?? ()
#44 0xab890 in ?? ()
#45 0xab9d4 in ?? ()
#46 0xab9d4 in ?? ()
#47 0xab86c in ?? ()
#48 0xab86c in ?? ()
#49 0xab9d4 in ?? ()
#50 0xab9d4 in ?? ()
#51 0xab9d4 in ?? ()
#52 0xfe5324f0 in __1cMStubRoutinesG_code1_ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#53 0xfe0cbe9c in
__1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArgument
s_pnGThread__v_ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#54 0xfe1f6dc4 in
__1cJJavaCallsMcall_virtual6FpnJJavaValue_nLKlassHandle_nMsymbolHandle_4pnRJ
avaCallArguments_pnGThread__v_ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#55 0xfe1fcd94 in
__1cJJavaCallsMcall_virtual6FpnJJavaValue_nGHandle_nLKlassHandle_nMsymbolHan
dle_5pnGThread__v_ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#56 0xfe21b708 in __1cMthread_entry6FpnKJavaThread_pnGThread__v_ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#57 0xfe216208 in __1cKJavaThreadDrun6M_v_ ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so
#58 0xfe213ed0 in _start ()
   from /usr/j2sdk1_3_1_06/jre/lib/sparc/server/libjvm.so



System information:

SunOS kupala 5.8 Generic_108528-18 sun4u sparc SUNW,Sun-Fire

Patch level is up to date. They are not using the alternate thread library.

Java command line options:

/usr/local/woodstock/weblogic/6_1_sp2/jdk/bin/java -server -Xms64m -Xmx512m
-Djavax.xml.parsers.DocumentBuilderFactory=org.apache.crimson.jaxp.DocumentB
uilderFactoryImpl
-Djavax.xml.parsers.SAXParserFactory=org.apache.crimson.jaxp.SAXParserFactor
yImpl -classpath
/usr/local/woodstock/weblogic/6_1_sp2/jdk/lib/tools.jar:/home/nightbld/jboss
_trunk_Sybase/jboss/jboss/bin/run.jar:/home/nightbld/jboss_trunk_Sybase/jbos
s/jboss/lib/crimson.jar -Dvendor=jboss
-DvendorFile=/home/nightbld/jboss_trunk_Sybase/woodstock2/servers.properties
org.jboss.Main tomcat