Name: dd4877 Date: 08/17/2004


###@###.### 2004-08-17

This assertion fails in the following NSK tests:

    nsk/jvmti/scenarios/hotswap/HS101/hs101t004
    nsk/jvmti/scenarios/hotswap/HS101/hs101t006

Here are the two analysis report entries:

New JVMTI_QUICKLOOK failures (from 2004.08.03)
    nsk/jvmti/scenarios/hotswap/HS101/hs101t004
        This test failed on Solaris SPARC-64 and Solaris X86 Server VMs
        due to the following assertion failure:
            Internal Error (src/share/vm/oops/cpCacheOop.hpp, 296)
            assert(0 <= i && i < length(),"index out of bounds")
                                                                                
        Update: I found the following two bugs with the same assert()
            failure:
                5065314 3/4 ShouldNotReachHere in xmlstream
                            -XX:+PrintOptoAssembly -XX:CompileThreshold=2
                5065316 3/4 Running with -XX:+CIPrintMethodCodes and
                            -XX:CompileThreshold=2 crashes
            I've pinged John Rose about the failure, but no response yet.
        Update: Here's John's response:
            The assert will happen whenever a garbage constant pool
            index is retrieved from the bytecode stream. This in turn
            often happens because a methodOop is moved by the GC and
            the interpreter keeps some sort of dangling pointer at the
            old address. If you trace back in a core file, you might
            find that the offending value of 'i' is two bytes out of
            the middle of a pointer, or some other random thing.
        Update: based on John's response, I think we have a different bug
            than the two I mentioned above.
        Update: This test has the following failure distribution from
            2004.07.30 -> 2004.08.09:
                1 ClientVM-comp-Solsparc
                3 ClientVM-comp-solx86
                3 ServerVM-comp-64BITLINUX-AMD64
                4 ServerVM-comp-64BITSOLSPARC
                1 ServerVM-comp-linux-i386
                5 ServerVM-comp-solx86

New JVMTI_QUICKLOOK failures (from 2004.08.16)
* nsk/jvmti/scenarios/hotswap/HS101/hs101t006
        This test failed the following assertion on Solaris SPARC-64
        Server VM:
            Internal Error (src/share/vm/oops/cpCacheOop.hpp, 296
            Error: assert(0 <= i && i < length(),"index out of bounds")
        This is the same error that we see with hs101t004 (see below).



======================================================================

This bug is also observed in the attached many.zip program which does not crash but gives incorrect results when run on "ntk" a Solaris Opteron box --

98 WS_C - ntk: tests/redefmany] /java/re/jdk/1.5.0/promoted/fcs/b64/binaries/solaris-i586/bin/java
-agentlib:test test
encourageCompilation
foo99
encourageCompilation
99 WS_C - ntk: tests/redefmany] /java/re/jdk/1.5.0/promoted/fcs/b64/binaries/solaris-i586/bin/java
-agentlib:test test
encourageCompilation
foo99
encourageCompilation
Wrong value returned by static function 4, redefinition 1, cmd 1, expected 305419896, got 305419897
Wrong value returned by static function 6, redefinition 1, cmd 1, expected 305419896, got 305419897
100 WS_C - ntk: tests/redefmany] /java/re/jdk/1.5.0/promoted/fcs/b64/binaries/solaris-i586/bin/java -agentlib:test test
encourageCompilation
foo99
encourageCompilation
Wrong value returned by static function 0, redefinition 1, cmd 1, expected 305419896, got 305419898
Wrong value returned by static function 4, redefinition 1, cmd 1, expected 305419896, got 305419897
Wrong value returned by static function 5, redefinition 1, cmd 1, expected 305419896, got 305419897
Wrong value returned by static function 6, redefinition 1, cmd 1, expected 305419896, got 305419897
101 WS_C - ntk: tests/redefmany] /java/re/jdk/1.5.0/promoted/fcs/b64/binaries/solaris-i586/bin/java -agentlib:test test
encourageCompilation
foo99
encourageCompilation
Wrong value returned by static function 4, redefinition 1, cmd 1, expected 305419896, got 305419897
Wrong value returned by static function 6, redefinition 1, cmd 1, expected 305419896, got 305419897
102 WS_C - ntk: tests/redefmany] /java/re/jdk/1.5.0/promoted/fcs/b64/binaries/solaris-i586/bin/java -agentlib:test test
encourageCompilation
foo99
encourageCompilation
103 WS_C - ntk: tests/redefmany] /java/re/jdk/1.5.0/promoted/fcs/b64/binaries/solaris-i586/bin/java -agentlib:test test
encourageCompilation
foo99
encourageCompilation
Wrong value returned by static function 1, redefinition 1, cmd 1, expected 305419896, got 305419897
Wrong value returned by static function 5, redefinition 1, cmd 1, expected 305419896, got 305419897
Wrong value returned by static function 6, redefinition 1, cmd 1, expected 305419896, got 305419897

-Robert
###@###.### 10/28/04 04:01 GMT

This assertion failed in the gc_baseline nightly testing
for

nsk/jvmti/scenarios/hotswap/HS101/hs101t005

on 02/20/2005 in the server, solx86, ParallelGC
###@###.### 2005-2-23 04:53:34 GMT