I used the next batch file to run SPECjvm 98 in loop:

jaberwocky% cat bug.bat
@echo off
@echo Begin:
date /t
time /t
set ILOOP=1

:loop
V:\jdk\1.4.2\promoted\beta\b18\binaries\windows-i586\bin\java -client -XX:+PrintCompilation -XX:SelfDestructTimer=120 SpecApplication -a -m4 -M4 _227_mtrt > spec.log

type spec.log | grep error
if %errorlevel% == 0 goto end

del spec.log
@echo Iteration %ILOOP% completed
set /A ILOOP=%ILOOP%+1
goto loop

:end
@echo Iteration = %ILOOP%
@echo End:
date /t
time /t
jaberwocky% 

One run the execution hangs on the iteration 80. I attached the spec_hang.log.

An  xxxxx  run it gives incorrect output:

C:\SPECjvm98>bug
Begin:
Thu 03/06/2003
11:51a
Iteration 1 completed
Iteration 2 completed
Iteration 3 completed
Iteration 4 completed
Iteration 5 completed
Iteration 6 completed
Iteration 7 completed
Iteration 8 completed
Iteration 9 completed
Validity check errors:
spec.results._227_mtrt.run0.validity.error01=line 118 is: 3425877
Iteration = 10
End:
Thu 03/06/2003
11:55a

C:\SPECjvm98>
 
I attached the spec.log and spec_good.log.

With option -client it executed more then 300 iterations before I 
interrapted it.

The specs were copied from /net/balvenie/export/imgr/SPECjvm98/
this is the version used by i_manager.

An  xxxxx  run and one line from output is missed (attached spec_miss.log).

N/A

 xxxxx@xxxxx  2003-03-28

With big Mike's help we found the the problem in the restoring XMM registers
during Safepoint processing. The stack pointer was incorrectly modified
before restoring XMM registers in the illegal_instruction_handler_blob().

The next test was prepared to show the problem.

/net/jano/export/disk20/GammaBase/Bugs/4828693/Test.java

>c:\j2sdk1.4.2.b18\bin\java_g -imgr -XX:+SafepointALot -XX:Guarantee
dSafepointInterval=1 -Xcomp -XX:CompileOnly=Hello.foo -XX:+ShowSafepointMsgs Hel
lo
VM option '+SafepointALot'
VM option 'GuaranteedSafepointInterval=1'
VM option 'CompileOnly=Hello.foo'
VM option '+ShowSafepointMsgs'
Thread in native stub.
Thread in native stub.
Hello!
0
10
...
### Compiled code: foo. pc: 0x00ad5560
############# Original nmethod ################
Compiled {method} 'foo' '()V' in 'Hello'
 main code      [0x00ad53f0,0x00ad57f4] = 1028
 exception code [0x00ad57f4,0x00ad5800] = 12
 stub code      [0x00ad5800,0x00ad5828] = 40
 relocation     [0x00ad53b4,0x00ad53f0] = 60
 oops           [0x00ad59e4,0x00ad5a24] = 64
 scopes data    [0x00ad5828,0x00ad5978] = 336
 scopes pcs     [0x00ad5978,0x00ad59a0] = 40
 handler table  [0x00ad59a0,0x00ad59e0] = 64
 nul chk table  [0x00ad59e0,0x00ad59e4] = 4
total size = 1820
Original code: [0x00ad53f0 - 0x00ad5828]
Code buffer:   [0x18571bd0 - 0x18572008]
Orignal pc:     0x00ad5560
handle_illegal_instruction_exception: static_call_type
X0(6859693.5) != Value(0.123456)
X1(1.741971E-39) != Value(0.123456)