mp application for powerpc-psim does not work!

[Bert]

Hi, i have installed RTEMS for powerpc-psim, 
and configured it with the option 
--enable-multiprocessing. i want to run a 
mp application with two nodes on psim, 
but failed. Here is what i have done:

# powerpc-rtems-gdb base_mp-node1.exe
(gdb) tar sim -f fsim
(gdb) load
(gdb) run
Starting program:/tmp/base_mp/node1/base_mp-node1.exe
core_find_mapping() - access to unmaped address, attach a default map to handle this - addr=0xc0000000 nr_bytes=0x4 processor=0x40250008 cia=0x16ca0
......
# powerpc-rtems-gdb base_mp-node2.exe
(gdb) tar sim -f fsim
(gdb) load
(gdb) run
Starting program:/tmp/base_mp/node2/base_mp-node2.exe
core_find_mapping() - access to unmaped address, attach a default map to handle this - addr=0xc0000040 nr_bytes=0x4 processor=0x40250008 cia=0x2184
......

and what in the file "fsim" is as following:
/#address-cells 2
/openprom/options/oea-memory-size 8388608

Is there anything i have done wrong? What should i do to make the application work perfect?
Thanks in advance !!!
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