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DMA help



I have just installed OpenBSD on an i386 machine.  The machine originally
had 64MB of memory (2x32MB SIMMS).  I added 128MB of memory (2x64MB SIMMS)
_after_ installation.  With the memory in I get this dmesg error:

isa0 at mainbus0
isadma0 at isa0panic: isadmaattach: can not create DMA map
stopped at    _Debugger+0x4: leave
ddb>

The BIOS recognizes the memory fine it shows 196MB.  If I remove the memory
the system boots fine?  Do the SIMMS need to be in a certain order?  Do I
have to re-install?  Is this memory configuration unacceptable to OpenBSD?
What can I do?

TIA,

ahp

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