Name: egR10015 Date: 08/07/2001



HotSpot 1.4.0-beta_refresh-b74 fails to pass the following tests

nsk/stress/numeric/numeric001
nsk/stress/numeric/numeric002
nsk/stress/numeric/numeric003
nsk/stress/numeric/numeric004
nsk/stress/numeric/numeric005
nsk/stress/numeric/numeric006
nsk/stress/numeric/numeric007
nsk/stress/numeric/numeric008
nsk/stress/numeric/numeric009
nsk/stress/numeric/numeric010

from testbase_nsk on all platforms in VM debug mode with
JVMDI client. The VM throws unexpected exception java.lang.OutOfMemory
while executing a test. It happens only if single step events
JVMDI_EVENT_SINGLE_STEP are enabled for a thread by calling
JVMDI function SetEventNotificationMode(). Enabling other kinds of
events such as JVMDI_EVENT_EXCEPTION_CATCH,JVMDI_EVENT_METHOD_ENTRY,
JVMDI_EVENT_METHOD_EXIT does not force the VM to throw OutOfMemory.
Throwing this exception by the VM prevents a debuggee program
from normal debugging.

The tests mentioned above calculate the product A*A for a square
matrix A of different java types. As example the test numeric001
was put into GammaBase. Details about numeric algorithm please
read in the file numeric001.README. The file numeric001.java contains
the main test program, the file JVMDIagent.c contains a simple
JVMDI client.

To reproduce the bug run with HS1.4

sh doit.sh $JAVA_HOME stress_level

in
/net/sqesvr.eng/export/vsn/GammaBase/Bugs/<this bug number>

where JAVA_HOME should point to jdk1.4
      stress_level is 2, or 3:
           2 - enable generation of events JVMDI_EVENT_EXCEPTION_CATCH,
                                           JVMDI_EVENT_METHOD_ENTRY,
                                           JVMDI_EVENT_METHOD_EXIT
           3 - enable generation of events JVMDI_EVENT_SINGLE_STEP,
                                           JVMDI_EVENT_EXCEPTION_CATCH,
                                           JVMDI_EVENT_METHOD_ENTRY,
                                           JVMDI_EVENT_METHOD_EXIT

and wait until throwing the exception java.lang.OutOfMemory.

output on Windows 2000 with HS 1.4.0-b74 with JVMDI_EVENT_SINGLE_STEP generation:
---------------------------------------------------------------------------------
$ sh doit.sh h:/hotspot/jdk1.4/win 3
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 12.00.8168 for 80x86
Copyright (C) Microsoft Corp 1984-1998. All rights reserved.

JVMDIagent.c
Microsoft (R) Incremental Linker Version 6.00.8447
Copyright (C) Microsoft Corp 1992-1998. All rights reserved.

/dll
/implib:wintel/JVMDIagent.lib
/out:wintel/JVMDIagent.dll
JVMDIagent.obj
   Creating library wintel/JVMDIagent.lib and object wintel/JVMDIagent.exp
Compiling the test ...
Executing the test ...
java version "1.4.0-beta_refresh"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta_refresh-b74)
Java HotSpot(TM) Client VM (build 1.4.0-beta_refresh-b74, mixed mode)
#### JVMDIagent: turned debug mode on ####
#### JVMDIagent: turned stress level 3 on ####
#### JVMDIagent: EventHook was successfully set ####
#### JVMDIagent: all events was successfully enabled ####
Exception in thread "Thread-1" java.lang.OutOfMemoryError: requested 152 bytes
exit code = 1
---------------------------------------------------------------------------------

output on Windows 2000 with HS 1.4.0-b74 w/o JVMDI_EVENT_SINGLE_STEP generation:
---------------------------------------------------------------------------------
$ sh doit.sh h:/hotspot/jdk1.4/win 2
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 12.00.8168 for 80x86
Copyright (C) Microsoft Corp 1984-1998. All rights reserved.

JVMDIagent.c
Microsoft (R) Incremental Linker Version 6.00.8447
Copyright (C) Microsoft Corp 1992-1998. All rights reserved.

/dll
/implib:wintel/JVMDIagent.lib
/out:wintel/JVMDIagent.dll
JVMDIagent.obj
   Creating library wintel/JVMDIagent.lib and object wintel/JVMDIagent.exp
Compiling the test ...
Executing the test ...
java version "1.4.0-beta_refresh"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta_refresh-b74)
Java HotSpot(TM) Client VM (build 1.4.0-beta_refresh-b74, mixed mode)
#### JVMDIagent: turned debug mode on ####
#### JVMDIagent: turned stress level 2 on ####
#### JVMDIagent: EventHook was successfully set ####
#### JVMDIagent: all events was successfully enabled ####
exit code = 95
---------------------------------------------------------------------------------

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