Name: elR10090 Date: 08/14/2001



Merlin-b75 crashes on UNIX'es (both Solaris'es & Linux)
while trying to profile a trivial HelloWorld.java program
with Jcov. Namely, VM looks crashed while calling the
function JVM_IsSupportedJNIVersion()

This failure could not reproduce against earlier Merlin
binaries, because Jcov failed to start due to the known
JVMPI bug fixed just in b75:

    4430109 HS1.4.0: JCOV error: "cannot enable JVMPI event : JVMPI_EVENT_INSTRUCTION_START"

Following is the crash log on Solaris/SPARC; similar crash
is observed on Solaris/x86 and on Linux/RedHat 6.2 (but the
test passes on Windows 2000):

>>> cat HelloWorld.java
    public class HelloWorld {
        public static void main(String args[]) {
            System.out.println("Hello world!");
        }
    }

>>> setenv JAVA_HOME /export/ld24/java/hotspot/jdk1.4/solsparc
>>> $JAVA_HOME/bin/java -version
    java version "1.4.0-beta_refresh"
    Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta_refresh-b75)
    Java HotSpot(TM) Client VM (build 1.4.0-beta_refresh-b75, mixed mode)

>>> $JAVA_HOME/bin/javac -Xjcov HelloWorld.java
>>> $JAVA_HOME/bin/java HelloWorld
    Hello world!

>>> $JAVA_HOME/bin/java -XX:+EnableJVMPIInstructionStartEvent -Xrunjcov HelloWorld

    Unexpected Signal : 11 occurred at PC=0xFE550710
    Function=JVM_IsSupportedJNIVersion+0x30B30
    Library=/export/ld54/java/dest/jdk1.4.0beta-b75/solsparc/jre/lib/sparc/client/libjvm.so

    Current Java thread:

    Dynamic libraries:
    0x10000 /export/ld24/java/hotspot/jdk1.4/solsparc/bin/java
    0xff360000 /usr/lib/libthread.so.1
    0xff3a0000 /usr/lib/libdl.so.1
    0xff280000 /usr/lib/libc.so.1
    0xff270000 /usr/platform/SUNW,Ultra-60/lib/libc_psr.so.1
    0xfe400000 /export/ld54/java/dest/jdk1.4.0beta-b75/solsparc/jre/lib/sparc/client/libjvm.so
    0xff210000 /usr/lib/libCrun.so.1
    0xff1f0000 /usr/lib/libsocket.so.1
    0xff100000 /usr/lib/libnsl.so.1
    0xff1c0000 /opt/SUNWspro/lib/libm.so.1
    0xff240000 /usr/lib/libw.so.1
    0xff0d0000 /usr/lib/libmp.so.2
    0xff0a0000 /export/ld54/java/dest/jdk1.4.0beta-b75/solsparc/jre/lib/sparc/native_threads/libhpi.so
    0xff070000 /export/ld54/java/dest/jdk1.4.0beta-b75/solsparc/jre/lib/sparc/libverify.so
    0xff030000 /export/ld54/java/dest/jdk1.4.0beta-b75/solsparc/jre/lib/sparc/libjava.so
    0xfe7e0000 /export/ld54/java/dest/jdk1.4.0beta-b75/solsparc/jre/lib/sparc/libzip.so
    0xfe1e0000 /usr/lib/locale/ru.koi8-r/ru.koi8-r.so.2
    0xfe1b0000 /export/ld54/java/dest/jdk1.4.0beta-b75/solsparc/jre/lib/sparc/libjcov.so

    Local Time = Tue Aug 14 12:20:34 2001
    Elapsed Time = 5
    #
    # HotSpot Virtual Machine Error : 11
    # Error ID : 4F530E43505002D7 01
    # Please report this error at
    # http://java.sun.com/cgi-bin/bugreport.cgi
    #
    # Java VM: Java HotSpot(TM) Client VM (1.4.0-beta_refresh-b75 mixed mode)
    #
    # An error report file has been saved as hs_err_pid6816.log.
    # Please refer to the file for further information.
    #
    Abort

This bug affects the following testbase_nsk tests:

    nsk/jvmpi/Jcov/jcov001
    nsk/jvmpi/Jcov/jcov002
    nsk/jvmpi/Jcov/jcov003
    nsk/jvmpi/Jcov/jcov004
    nsk/jvmpi/Jcov/jcov005
    nsk/jvmpi/Jcov/jcov006
    nsk/jvmpi/Jcov/jcov007
    nsk/jvmpi/Jcov/jcov008
    nsk/jvmpi/Jcov/jcov009
    nsk/jvmpi/Jcov/jcov010
    nsk/jvmpi/Jcov/jcov011
    nsk/jvmpi/Jcov/jcov012
    nsk/jvmpi/Jcov/jcov013
    nsk/jvmpi/Jcov/jcov014
    nsk/jvmpi/Jcov/jcov015
    nsk/jvmpi/Jcov/jcov016
    nsk/jvmpi/Jcov/jcov017
    nsk/jvmpi/Jcov/jcov018
    nsk/jvmpi/Jcov/jcov019
    nsk/jvmpi/Jcov/jcov020
    nsk/jvmpi/Jcov/jcov021

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