Hello.
I have tried to install NetBSD snapshot from
....pub/NetBSD/arch/alpha/snapshot/19981016/
on AlphaServer 1000A 5/400.
Kernel boots and starts (both from tape and network),
but following error messages occur:

isp0: Last F/W revision was 5.54
dec_1000a_intr_map: can't map dev 8 pin 1
isp0: couldn't map interrupt

After booting SCSI drives are invisible.

Digital UNIX on the same machine boots OK, so I'm sure 
hardware is OK.

Thanks for any help.

Boot messages are:

############ NetBSD ################

Copyright (c) 1996, 1997, 1998
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 1.3H (INSTALL) #10: Tue Oct 20 16:47:37 PDT 1998
    ross@iota.teraflop.com:/usr/src/sys/arch/alpha/compile/INSTALL
AlphaServer 1000A 5/400, 400MHz
8192 byte page size, 1 processor.
real mem = 268435456 (1990656 reserved for PROM, 266444800 used by
NetBSD)
avail mem = 228335616
using 3252 buffers containing 26640384 bytes of memory
mainbus0 (root)
cpu0 at mainbus0: ID 0 (primary), 21164A (pass 2)
cia0 at mainbus0: DECchip 2117x Core Logic Chipset (ALCOR/ALCOR2), pass
3
cia0: extended capabilities: 21<DWEN,BWEN>
cia0: using BWX for PCI config access
pci0 at cia0 bus 0
pci0: i/o enabled, memory enabled
pceb0 at pci0 dev 7 function 0: vendor 0x8086 product 0x0482 (rev. 0x05)
ppb0 at pci0 dev 8 function 0: vendor 0x1011 product 0x0001 (rev. 0x02)
pci1 at ppb0 bus 2
pci1: i/o enabled, memory enabled
isp0 at pci1 dev 0 function 0
isp0: Board Revision 1020A, loaded F/W Revision 7.55
isp0: Last F/W revision was 5.54
dec_1000a_intr_map: can't map dev 8 pin 1
isp0: couldn't map interrupt
vga0 at pci0 dev 11 function 0: vendor 0x1011 product 0x000d (rev. 0x22)
wsdisplay0 at vga0: console (80x25, sun emulation)
de0 at pci0 dev 12 function 0
de0: interrupting at dec_1000a irq 3
de0: DEC DE500-AA 21140A [10-100Mb/s] pass 2.0
de0: address 00:00:f8:04:76:62
de0: enabling 10baseT port
eisa0 at pceb0
eisa0: can't map I/O space for slot 9
isa0 at pceb0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
lpt0 at isa0 port 0x3bc-0x3bf irq 7
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard
psm0 at pckbc0 (aux slot)
wsmouse0 at psm0
mcclock0 at isa0 port 0x70-0x71: mc146818 or compatible
wscons: wskbd0 glued to wsdisplay0 (console)
md0: internal 3072K image area
WARNING: can't figure what device matches "DVA 0 1000 0 0 0 0 0"
root on md0a dumps on md0b
WARNING: preposterous clock chip time
 -- CHECK AND RESET THE DATE!
root file system type: ffs
de0: enabling Full Duplex 100baseTX port
de0: link down: cable problem?

############# Digital UNIX ##########################

Oct 25 22:11:18 str vmunix: tu0: DECchip 21140: Revision: 2.0
Oct 25 22:11:18 str vmunix: tu0: auto negotiation capable device
Oct 25 22:11:19 str vmunix: tu0 at pci0 slot 12
Oct 25 22:11:19 str vmunix: tu0: DEC TULIP (10/100) Ethernet Interface,
hardware address: 00-00-F8-04-76-62
Oct 25 22:11:19 str vmunix: tu0: auto negotiation off: selecting 10BaseT
(UTP) port: half duplex
Oct 25 22:11:19 str vmunix: gpc0 at eisa0
Oct 25 22:11:19 str vmunix: Created FRU table configuration binary
errorlog packet
Oct 25 22:11:19 str vmunix: kernel console: tga0
Oct 25 22:11:19 str vmunix: dli: configured
Oct 25 22:11:19 str vmunix: 
Oct 25 22:11:19 str last message repeated 2 times
Oct 25 22:11:19 str vmunix: over 5 years since last boot - CHECK AND
RESET THE DATE
Oct 25 22:11:19 str vmunix: Setting time to last shutdown time stamp
Oct 25 22:11:19 str vmunix: 
Oct 25 22:20:01 str vmunix: Alpha boot: available memory from 0xa6a000
to 0xffee000
Oct 25 22:20:01 str vmunix: Digital UNIX V4.0B  (Rev. 564); Thu Mar  5
14:31:46 EET 1998 
Oct 25 22:20:01 str vmunix: physical memory = 256.00 megabytes.
Oct 25 22:20:01 str vmunix: available memory = 245.65 megabytes.
Oct 25 22:20:01 str vmunix: using 975 buffers containing 7.61 megabytes
of memory
Oct 25 22:20:02 str vmunix: Firmware revision: 5.2
Oct 25 22:20:02 str vmunix: PALcode: OSF version 1.22
Oct 25 22:20:02 str vmunix: AlphaServer 1000A 5/400
Oct 25 22:20:02 str vmunix: Mem_size = 266444800, consmem = 243
Oct 25 22:20:02 str vmunix: pci0 at nexus
Oct 25 22:20:02 str vmunix: eisa0 at pci0
Oct 25 22:20:02 str vmunix: ace0 at eisa0
Oct 25 22:20:02 str vmunix: ace1 at eisa0
Oct 25 22:20:02 str vmunix: lp0 at eisa0
Oct 25 22:20:02 str vmunix: fdi0 at eisa0
Oct 25 22:20:03 str vmunix: fd0 at fdi0 unit 0
Oct 25 22:20:03 str vmunix: pci2000 at pci0 slot 8
Oct 25 22:20:03 str vmunix: isp0 at pci2000 slot 0
Oct 25 22:20:03 str vmunix: isp0: QLOGIC ISP1020A
Oct 25 22:20:03 str vmunix: isp0: Firmware revision 5.54 (loaded by
console)
Oct 25 22:20:03 str vmunix: scsi0 at isp0 slot 0
Oct 25 22:20:03 str vmunix: rz0 at scsi0 target 0 lun 0 (LID=0) (DEC    
RZ29B    (C) DEC 0016) (Wide16)
Oct 25 22:20:03 str vmunix: rz1 at scsi0 target 1 lun 0 (LID=1) (DEC    
RZ29B    (C) DEC 0016) (Wide16)
Oct 25 22:20:03 str vmunix: rz2 at scsi0 target 2 lun 0 (LID=2) (DEC    
RZ29B    (C) DEC 0016) (Wide16)
Oct 25 22:20:03 str vmunix: rz4 at scsi0 target 4 lun 0 (LID=3) (DEC    
RRD45   (C) DEC  0436)
Oct 25 22:20:03 str vmunix: tz5 at scsi0 target 5 lun 0 (LID=4) (DEC    
TLZ09     (C)DEC 0167)
Oct 25 22:20:03 str vmunix: tga0 at pci0 slot 11
Oct 25 22:20:04 str vmunix: tga0: depth 8, map size 2MB, 1280x1024
Oct 25 22:20:04 str vmunix: tga0: ZLXp2-E, Revision: 34
Oct 25 22:20:04 str vmunix: tu0: DECchip 21140: Revision: 2.0
Oct 25 22:20:04 str vmunix: tu0: auto negotiation capable device
Oct 25 22:20:04 str vmunix: tu0 at pci0 slot 12
Oct 25 22:20:04 str vmunix: tu0: DEC TULIP (10/100) Ethernet Interface,
hardware address: 00-00-F8-04-76-62
Oct 25 22:20:04 str vmunix: tu0: auto negotiation off: selecting 10BaseT
(UTP) port: half duplex
Oct 25 22:20:04 str vmunix: gpc0 at eisa0
Oct 25 22:20:04 str vmunix: Created FRU table configuration binary
errorlog packet
Oct 25 22:20:04 str vmunix: kernel console: tga0
Oct 25 22:20:04 str vmunix: dli: configured
Oct 25 22:20:05 str vmunix: 
Oct 25 22:20:05 str last message repeated 2 times
Oct 25 22:20:05 str vmunix: over 5 years since last boot - CHECK AND
RESET THE DATE
Oct 25 22:20:05 str vmunix: Setting time to last shutdown time stamp
Oct 25 22:20:05 str vmunix: 
Oct 25 22:52:20 str vmunix: Alpha boot: available memory from 0xa6a000
to 0xffee000
Oct 25 22:52:20 str vmunix: Digital UNIX V4.0B  (Rev. 564); Thu Mar  5
14:31:46 EET 1998 
Oct 25 22:52:20 str vmunix: physical memory = 256.00 megabytes.
Oct 25 22:52:20 str vmunix: available memory = 245.65 megabytes.
Oct 25 22:52:20 str vmunix: using 975 buffers containing 7.61 megabytes
of memory
Oct 25 22:52:20 str vmunix: Firmware revision: 5.2
Oct 25 22:52:21 str vmunix: PALcode: OSF version 1.22
Oct 25 22:52:21 str vmunix: AlphaServer 1000A 5/400
Oct 25 22:52:21 str vmunix: Mem_size = 266444800, consmem = 243
Oct 25 22:52:21 str vmunix: pci0 at nexus
Oct 25 22:52:21 str vmunix: eisa0 at pci0
Oct 25 22:52:21 str vmunix: ace0 at eisa0
Oct 25 22:52:21 str vmunix: ace1 at eisa0
Oct 25 22:52:21 str vmunix: lp0 at eisa0
Oct 25 22:52:21 str vmunix: fdi0 at eisa0
Oct 25 22:52:21 str vmunix: fd0 at fdi0 unit 0
Oct 25 22:52:21 str vmunix: pci2000 at pci0 slot 8
Oct 25 22:52:21 str vmunix: isp0 at pci2000 slot 0
Oct 25 22:52:21 str vmunix: isp0: QLOGIC ISP1020A
Oct 25 22:52:22 str vmunix: isp0: Firmware revision 5.54 (loaded by
console)
Oct 25 22:52:22 str vmunix: scsi0 at isp0 slot 0
Oct 25 22:52:22 str vmunix: rz0 at scsi0 target 0 lun 0 (LID=0) (DEC    
RZ29B    (C) DEC 0016) (Wide16)
Oct 25 22:52:22 str vmunix: rz1 at scsi0 target 1 lun 0 (LID=1) (DEC    
RZ29B    (C) DEC 0016) (Wide16)
Oct 25 22:52:22 str vmunix: rz2 at scsi0 target 2 lun 0 (LID=2) (DEC    
RZ29B    (C) DEC 0016) (Wide16)
Oct 25 22:52:22 str vmunix: rz4 at scsi0 target 4 lun 0 (LID=3) (DEC    
RRD45   (C) DEC  0436)
Oct 25 22:52:22 str vmunix: tz5 at scsi0 target 5 lun 0 (LID=4) (DEC    
TLZ09     (C)DEC 0167)
Oct 25 22:52:22 str vmunix: tga0 at pci0 slot 11
Oct 25 22:52:22 str vmunix: tga0: depth 8, map size 2MB, 1280x1024
Oct 25 22:52:22 str vmunix: tga0: ZLXp2-E, Revision: 34
Oct 25 22:52:22 str vmunix: tu0: DECchip 21140: Revision: 2.0
Oct 25 22:52:23 str vmunix: tu0: auto negotiation capable device
Oct 25 22:52:23 str vmunix: tu0 at pci0 slot 12
Oct 25 22:52:23 str vmunix: tu0: DEC TULIP (10/100) Ethernet Interface,
hardware address: 00-00-F8-04-76-62
Oct 25 22:52:23 str vmunix: tu0: auto negotiation off: selecting 10BaseT
(UTP) port: half duplex
Oct 25 22:52:23 str vmunix: gpc0 at eisa0
Oct 25 22:52:23 str vmunix: Created FRU table configuration binary
errorlog packet
Oct 25 22:52:23 str vmunix: kernel console: tga0
Oct 25 22:52:23 str vmunix: dli: configured
Oct 25 22:52:23 str vmunix: 
Oct 25 22:52:23 str last message repeated 2 times
Oct 25 22:52:23 str vmunix: over 5 years since last boot - CHECK AND
RESET THE DATE
Oct 25 22:52:23 str vmunix: Setting time to last shutdown time stamp