TestBase : runThese
Mode : -Xmixed -XX:TargetSurvivorRatio=10 -XX:MarkSweepDeadRatio=1
           -XX:PermMarkSweepDeadRatio=5 -XX:MarkSweepAlwaysCompactCount=1
           -XX:NmethodSweepFraction=1 -XX:-ShowMessageBoxOnError
Platform : win_NT, win2000

Steps to reproduce
1) cd /net/sqesvr.eng/export/vsn/GammaBase/Bugs/{Bugid}
2) ./dowin

{OR}

make a runList.dat with the following testcases

$TESTBASE/testbase/testbase_ss/classes/misc/threads/PipedThreadsStressTest;$TESTBASE/testbase/testbase_ss/classes//misc/threads/classes PipedThreadsStressTest
$TESTBASE/testbase/testbase_ss/classes/misc/threads/sync2;$TESTBASE/testbase/testbase_ss/classes//misc/threads/classes sync2

Set X: to /net/sqesvr.eng/export/vsn and run the following command-line

X:/VM/merlin/weekly/jdk/b56/win/bin/java_g -hotspot -Xmixed -Xss4m -XX:TargetSurvivorRatio=10 -XX:MarkSweepDeadRatio=1 -XX:PermMarkSweepDeadRatio=5 -XX:MarkSweepAlwaysCompactCount=1 -XX:NmethodSweepFraction=1 -XX:-ShowMessageBoxOnError -XX:+ExitOnFullCodeCache -classpath X:/VM/testbase/runThese/classes $* runThese -thread 2 -repeat 1 -iter 1 -D:gc=5 -D:TESTBASE=X:/VM/testbase/runThese/tests -runList runList.dat

Output:

VM option 'TargetSurvivorRatio=10'
VM option 'MarkSweepDeadRatio=1'
VM option 'PermMarkSweepDeadRatio=5'
VM option 'MarkSweepAlwaysCompactCount=1'
VM option 'NmethodSweepFraction=1'
VM option '-ShowMessageBoxOnError'
VM option '+ExitOnFullCodeCache'
......................................
[Enter:PipedThreadsStressTest]
......................................
[Enter:sync2]
Test passed.
#Passed; PipedThreadsStressTest; (1,1,0,0,0)
[Exit:PipedThreadsStressTest]
#Passed; sync2; (1,1,0,0,0)
[Exit:sync2]
runThese Finished
#
# HotSpot Virtual Machine Error, assertion failure
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# assert(exception->is_oop(), "just checking")
#
# Error ID: D:\hotspot1.4\src\share\vm\c1\c1_Runtime1.cpp, 646
#
# Problematic Thread: prio=5 tid=0x0079AEA8 nid=0x1bfc runnable
#

Note: Test passes in int mode and fails in comp mode intermittently with the following assertion

An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x4B0022
Function=[Unknown.]
Library=(N/A)

NOTE: We are unable to locate the function name symbol for the error
      just occurred. Please refer to release documentation for possible
      reason and solutions.


Current Java thread:
        at java.io.PipedInputStream.read(../../../src/share/classes/java/io/Pipe
dInputStream.java:216)
        - locked <085D0178> (a java.io.PipedInputStream)
        at java.io.DataInputStream.readInt(../../../src/share/classes/java/io/Da
taInputStream.java:393)
        at PipedServerThread.run(PipedThreadsStressTest.java:50)

********************************************************************
This bug is reproduceable with following latest eng binaries and build 58 too.

java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b57)
Java HotSpot(TM) Client VM (build product+1.4+baseline+compiler1+20010327-195500
VM option 'TargetSurvivorRatio=10'
VM option 'MarkSweepDeadRatio=1'
VM option 'PermMarkSweepDeadRatio=5'
VM option 'MarkSweepAlwaysCompactCount=1'
VM option 'NmethodSweepFraction=1'
VM option '-ShowMessageBoxOnError'
VM option '+ExitOnFullCodeCache'
......................................
[Enter:PipedThreadsStressTest]
......................................
[Enter:sync2]
Test passed.
#Passed; PipedThreadsStressTest; (1,1,0,0,0)
[Exit:PipedThreadsStressTest]
#
# HotSpot Virtual Machine Error, assertion failure
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# assert(exception->is_oop(), "just checking")
#
# Error ID: l:\auto\ws_kzin\fpt\src\share\vm\c1\c1_Runtime1.cpp, 646
#
# Problematic Thread: prio=5 tid=0x00274C48 nid=0x660 runnable


satheesh.pothuganti@eng 2001-04-02