Name: elR10090 Date: 10/21/2002


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Test : nsk/coverage/runtime/runtime002
TestBase : testbase_nsk
Command : java_g
VM : server
Mode : -Xmixed
OS : generic
JDK : 1.4.2-b03
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This test causes Mantis-server-java_g-mixed to crash with
an error message like the following:

    # HotSpot Virtual Machine Error, assertion failure
    # Please report this error at
    # http://java.sun.com/cgi-bin/bugreport.cgi
    #
    # Java VM: Java HotSpot(TM) Server VM (1.4.2-beta-b03-debug mixed mode)
    #
    # assert(obj->is_oop(), "sanity check")
    #
    # Error happened during: deoptimize frame
    #
    # Error ID: /BUILD_AREA/jdk1.4.2/hotspot/src/share/vm/runtime/handles.cpp, 16
    #
    # Thread requesting VM operation: prio=5 tid=0x0807bde0 nid=0x1 waiting on condition
    #
    Dumping core....

Such crashes are observed only against server java_g VM running
with -Xmixed mode. Crashes are not observed otherwise:

                     int_g mix_g comp_g int mixed comp
    --------------------------------------------------------
    sparcv9-server: pass FAIL pass pass pass pass
    sparc-server: pass FAIL pass pass pass pass
    solx86-server: pass FAIL pass pass pass pass
    linux-server: pass FAIL pass pass pass pass
    win-server: pass FAIL pass pass pass pass
    --------------------------------------------------------
    sparc-client: pass pass pass pass pass pass
    solx86-client: pass pass pass pass pass pass
    linux-client: pass pass pass pass pass pass
    win-client: pass pass pass pass pass pass
    --------------------------------------------------------

This looks like a regression of the Hopper bug:
    4651825 64 bit VM crash: assert(obj->is_oop(), "sanity check")

To reproduce the failure, just run the test like the following,
e.g.:
    $JAVA_HOME/bin/javac runtime002.java
    $JAVA_HOME/bin/java_g -server runtime002

You may find sources for the runtime002 test at the testbase_nsk
testsuite:
    /net/sqesvr.sfbay/export/vsn/VM/testbase/testbase_nsk
subdirectory:
    src/nsk/coverage/runtime/runtime002

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