ASSERT in NDISTest

Hi

I am doing NDISTest MPE on my ported ndis6.0 windows pv driver. MPE pass
with 1cpu, but when i test this with 4cpu. I got a BSOD error, windbg
print out following information about this BSOD.

ASSERT occured in a NDISTest binary.
This could possibly be a bug in the tester! Please forward this to
ndistd alias
FILE NAME:
d:\4271t\testsrc\nettest\ndis\ndistest\commengine\others\simpletrafficmanager.cpp
LINE NUMBER: 855
ASSERT CONDITION: pCurrentNetBufferList
Break instruction exception - code 80000003 (first chance)
nt!DbgBreakPoint:
8168c954 cc int 3

Is this a known issue about NDISTest?

Thanks
Annie