> >I recently aquired a couple of 8M SIMMs to increase my system's memory up
> >to 32M.  However, NetBSD 1.1B will not work now, and panics with a "ptdi:"
> >message right after "biomask, netmask, ttymask" when I boot with 32M
> >installed. 
> 
> I wouldn't expect that exact result, but I believe there is a problem with
> your sound blaster.  The ISA bus only has 24 address lines (which allow for
> 16 Mb of address space).  The Soundblaster uses DMA and is ISA, so any DMA
> request that happens to be above 16 Mb will cause a problem.  I believe
> NetBSD doesn't support bounce buffers, (like 95 and NT do I think).
> Normally you'll get a "DMA beyond end of ISA" message, but who knows...  It
> might be worth looking into.
> 
> Try taking out the SB and see if it fixes the problem..


This was one of my first theories too, but since the NetBSD 1.1 GENERIC
kernel works, I think we can pretty much rule out the bounce buffer
problem.


Jeff Thieleke