Sources checked out this AM.  This is the first time I've tried this system
(HP Vectra XW; dual ppro/200, integrated aic7880 , etc.).  The GENERIC 1.6.1
kernel works fine.

I can build/do whatever would help if someone needs me to mess around with
it.  This guy boots just fine:

NetBSD 1.6ZH (GENERIC) #0: Thu Jan 22 21:04:03 CST 2004
        root@vector:/current/src/sys/arch/i386/compile/GENERIC

I can supply the whole dmesg of the MP boot as the serial console on i386
makes PCs almost as cool as my sparcs.  Here's where it hangs:

NetBSD 1.6ZH (GENERIC.MP) #0: Thu Jan 22 09:57:02 CST 2004
        root@vector:/current/src/sys/arch/i386/compile/GENERIC.MP
...
ahc1:SCB 0xf - timed out
>>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
ahc1: Dumping Card State in Message-out phase, at SEQADDR 0x16b
Card was paused
ACCUM = 0xa0, SINDEX = 0x61, DINDEX = 0xc0, ARG_2 = 0x3
HCNT = 0x0 SCBPTR = 0x0
SCSISIGI[0xb6] ERROR[0x0] SCSIBUSL[0x1] LASTPHASE[0xa0]
SCSISEQ[0x12] SBLKCTL[0x0] SCSIRATE[0x0] SEQCTL[0x10]
SEQ_FLAGS[0x40] SSTAT0[0x7] SSTAT1[0x3] SSTAT2[0x0]
SSTAT3[0x0] SIMODE0[0x0] SIMODE1[0xac] SXFRCTL0[0x88]
DFCNTRL[0x4] DFSTATUS[0x6d]
STACK: 0xe7 0x0 0x0 0x195
SCB count = 16
Kernel NEXTQSCB = 14
Card NEXTQSCB = 14
QINFIFO entries: 
Waiting Queue entries:
Disconnected Queue entries:
QOUTFIFO entries: 
Sequencer Free SCB List: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Sequencer SCB Info:
  0 SCB_CONTROL[0x40] SCB_SCSIID[0x7]
SCB_LUN[0x0] SCB_TAG[0xf]
  1 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  2 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  3 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  4 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  5 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  6 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  7 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  8 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  9 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 10 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 11 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 12 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 13 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 14 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 15 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
Pending list: 
 15 SCB_CONTROL[0x40] SCB_SCSIID[0x7]
SCB_LUN[0x0] 
Kernel Free SCB list: 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Untagged Q(0): 15 

<<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>
sg[0] - Addr 0x177de94 : Length 36
ahc1:BDR message in message buffer
ahc1:SCB 0xf - timed out
>>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
ahc1: Dumping Card State in Message-out phase, at SEQADDR 0x16b
Card was paused
ACCUM = 0xa0, SINDEX = 0x61, DINDEX = 0xc0, ARG_2 = 0x3
HCNT = 0x0 SCBPTR = 0x0
SCSISIGI[0xb6] ERROR[0x0] SCSIBUSL[0x45] LASTPHASE[0xa0]
SCSISEQ[0x12] SBLKCTL[0x0] SCSIRATE[0x0] SEQCTL[0x10]
SEQ_FLAGS[0x40] SSTAT0[0x7] SSTAT1[0x3] SSTAT2[0x0]
SSTAT3[0x0] SIMODE0[0x0] SIMODE1[0xac] SXFRCTL0[0x88]
DFCNTRL[0x4] DFSTATUS[0x6d]
STACK: 0xe7 0x0 0x0 0x195
SCB count = 16
Kernel NEXTQSCB = 14
Card NEXTQSCB = 14
QINFIFO entries: 
Waiting Queue entries:
Disconnected Queue entries:
QOUTFIFO entries: 
Sequencer Free SCB List: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Sequencer SCB Info:
  0 SCB_CONTROL[0x40] SCB_SCSIID[0x7]
SCB_LUN[0x0] SCB_TAG[0xf]
  1 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  2 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  3 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  4 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  5 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  6 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  7 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  8 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
  9 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 10 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 11 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 12 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 13 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 14 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
 15 SCB_CONTROL[0x0] SCB_SCSIID[0xff]
SCB_LUN[0xff] SCB_TAG[0xff]
Pending list: 
 15 SCB_CONTROL[0x40] SCB_SCSIID[0x7]
SCB_LUN[0x0] 
Kernel Free SCB list: 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Untagged Q(0): 15 

<<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>
sg[0] - Addr 0x177de94 : Length 36
probe(ahc1:0:0:0): ahc1: no longer in timeout, status = 0
ahc1: Issued Channel A Bus Reset. 1 SCBs aborted