>> [...] 
>> To give more info on the installed hardware, here's the dmesg output
>> from booting my 1.2+ kernel:
>> 
>> NetBSD 1.2 (MINDBENDER) #417: Tue Mar 11 21:47:49 PST 1997
>>     michaelv@MindBender.serv.net:/u/src/sys/arch/i386/compile/MINDBENDER
>> [...]
>> ppb0 at pci0 dev 11 function 0: Digital Equipment DECchip 21050 PCI-PCI Bridge (rev. 0x02)
>                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
>> pci1 at ppb0 bus 1
>> ahc1 at pci1 dev 4 function 0
>> [...]

>While this may or may not be the problem, you should know that the DECchip
>21050 is a first-generation PCI-to-PCI bridge and contains a serious design
>flaw.  It is susceptible to deadlock under certain conditions.  Under certain
[...]

OK, any idea where I can find a PCI bus analyzer?

BTW, you should break up your paragraphs more often. :-)

Maybe I'll give Adaptec a call and see if this is something they'll
replace for free.

-----------------------------------------------------------------------------
  Michael L. VanLoon                           michaelv@MindBender.serv.net
      Contract software development for Windows NT, Windows 95 and Unix.
             Windows NT and Unix server development in C++ and C.

        --<  Free your mind and your machine -- NetBSD free un*x  >--
    NetBSD working ports: 386+PC, Mac 68k, Amiga, Atari 68k, HP300, Sun3,
        Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32...
    NetBSD ports in progress: PICA, others...
-----------------------------------------------------------------------------