At 12:51 AM 5/16/96 -0500, Jeff Thieleke wrote:
>(I posted this problem a few days ago, but I have some more information
>now)
>
>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..

Rick
=========================================================================
Rick Byers                                      Internet Access Worldwide
rickb@iaw.on.ca                                System Admin, Tech Support
Welland, Ontario, Canada                                    (905)714-1400
http://www.iaw.on.ca/rickb/                         http://www.iaw.on.ca/