Name: elR10090 Date: 02/28/2001



Java HotSpot Server VM (build 1.4.0-beta-b53) fails to pass the test:

    nsk/serial/Unsafe/allocateMemory/allocmem001
    
This test tries to allocate memory with negative size and expects
IllegalArgumentException.

Three failures were observed in the method Unsafe.allocateMemory(long).

1. 64-bit server java VM throws OutOfMemoryError for
   Unsafe.allocateMemory(-1L).
   
   See log:
   
   #Exception in thread "main" java.lang.OutOfMemoryError
   # at sun.misc.Unsafe.allocateMemory(Native Method)
   # at serial.Unsafe.allocateMemory.allocmem001.run(allocmem001.java:58)
   # at serial.Unsafe.allocateMemory.allocmem001.main(allocmem001.java:13)
   

2. 64-bit server java_g VM does not throw IllegalArgumentException
   for Unsafe.allocateMemory(-1L).
   
   See log:
   
   ## FAILURE 5.
   # Memory was allocated with negative size.
   
3. 64-bit server java_g VM crashes after memory is allocated
   with negative size.
   
   See log:
   
   ### nof_mallocs = 1030, nof_frees = 95
   ### memory stomp: byte at 100106de7 after object 100106de8
   #### previous object (not sure if correct): 100106d48 (49 bytes)
   #### next object: 100106e28 (8 bytes)
   ##
   ## HotSpot Virtual Machine Error, Internal Error
   ## Please report this error at
   ## http://java.sun.com/cgi-bin/bugreport.cgi
   ##
   ## Fatal: memory stomping error
   ##
   ## Error ID: /net/mersparc.eng/usr/re/hotspot/hotspot1.4/ws/src/share/vm/runtime/os.cpp, 370 [
Patched ]
   ##
   ## Problematic Thread: prio=5 tid=0x100125818 nid=0x1 runnable
   ##
   #Dumping core....
   

This test passes fine on Linux, Solaris Sparc and Solaris Intel on
32-bit merlin-b53 on both Server and Client VMs.

The test belongs to the testbase_nsk testbase located at:

    /net/sqesvr.eng/export/vsn/VM/merlin/testbase/testbase_nsk

To reproduce the failure please use 'doit.sh' script found
in the directory:

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

Use:
    sh doit.sh $JAVA_HOME

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