Hi,

I just updated my PWS500au workstation and noticed that it doesn't
boot anymore, even with a GENERIC kernel. It seems to hang during SCSI
disks probe ...

NetBSD 3.99.18 (GENERIC) #0: Thu Apr 27 19:16:49 CEST 2006
        njoly@thanos.sis.pasteur.fr:/local/src/NetBSD/obj/alpha/sys/arch/alpha/compile/GENERIC
Digital Personal WorkStation 500au, 500MHz, s/n 
8192 byte page size, 1 processor.
total memory = 640 MB
(1888 KB reserved for PROM, 638 MB used by NetBSD)
avail memory = 619 MB
mainbus0 (root)
cpu0 at mainbus0: ID 0 (primary), 21164A-0
cpu0: Architecture extensions: 1<BWX>
cia0 at mainbus0: DECchip 2117x Core Logic Chipset (Pyxis), pass 1
cia0: extended capabilities: 1<BWEN>
cia0: using BWX for PCI config access
pci0 at cia0 bus 0
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
tlp0 at pci0 dev 3 function 0: DECchip 21143 Ethernet, pass 3.0
tlp0: interrupting at dec 550 irq 0
tlp0: DEC, Ethernet address 00:00:f8:71:5a:92
nsphy0 at tlp0 phy 5: DP83840 10/100 media interface, rev. 1
nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
tlp0: 10baseT, 10baseT-FDX, 10base2, 10base5
sio0 at pci0 dev 7 function 0: Contaq Microsystems 82C693 PCI-ISA Bridge (rev. 0x00)
cypide0 at pci0 dev 7 function 1
cypide0: Cypress 82C693 IDE Controller (rev. 0x00)
cypide0: bus-master DMA support present
cypide0: primary channel wired to compatibility mode
cypide0: primary channel interrupting at isa irq 14
atabus0 at cypide0 channel 0
cypide1 at pci0 dev 7 function 2
cypide1: Cypress 82C693 IDE Controller (rev. 0x00)
cypide1: hardware does not support DMA
cypide1: primary channel wired to compatibility mode
cypide1: secondary channel interrupting at isa irq 15
atabus1 at cypide1 channel 0
ohci0 at pci0 dev 7 function 3: Contaq Microsystems 82C693 PCI-ISA Bridge (rev. 0x00)
ohci0: interrupting at isa irq 10
ohci0: OHCI version 1.0, legacy support
usb0 at ohci0: USB revision 1.0
uhub0 at usb0
uhub0: Contaq Microsys OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
ppb0 at pci0 dev 20 function 0: Digital Equipment DC21152 PCI-PCI Bridge (rev. 0x03)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
isp0 at pci1 dev 4 function 0: QLogic 1020 Fast Wide SCSI HBA
isp0: interrupting at dec 550 irq 3
scsibus0 at isp0: 16 targets, 8 luns per target
vga0 at pci1 dev 10 function 0: Texas Instruments TVP4020 Permedia 2 (rev. 0x01)
wsdisplay0 at vga0 kbdmux 1
wsmux1: connecting to wsdisplay0
isa0 at sio0
lpt0 at isa0 port 0x3bc-0x3bf irq 7
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com0: console
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
attimer0 at isa0 port 0x40-0x43: AT Timer
sb0 at isa0 port 0x220-0x237 irq 5 drq 1: dsp v3.01
audio0 at sb0: half duplex, mmap, independent
midi0 at sb0: SB MIDI UART
opl at sb0 not configured
pcppi0 at isa0 port 0x61
midi1 at pcppi0: PC speaker
spkr0 at pcppi0
isabeep0 at pcppi0
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
mcclock0 at isa0 port 0x70-0x71: mc146818 or compatible
pcppi0: attached to attimer0
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
Kernelized RAIDframe activated
atapibus0 at atabus1: 2 targets
stray isa irq 15
scsibus0: waiting 2 seconds for devices to settle...
cd0 at atapibus0 drive 0: <CD-ROM CDU611, , 2.0a> cdrom removable
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2
cd0(cypide1:0:0): using PIO mode 4
[...HANG...]

The previous 3.99.16 kernel works fine, by detecting the following
disks :

sd0 at scsibus0 target 0 lun 0: <DEC, RZ2CC-KB (C) DEC, DC2B> disk fixed
sd0: 4091 MB, 3708 cyl, 20 head, 113 sec, 512 bytes/sect x 8380080 sectors
sd0: sync (50.00ns offset 8), 16-bit (40.000MB/s) transfers, tagged queueing
sd1 at scsibus0 target 1 lun 0: <COMPAQ, BB01821AC3, 3B05> disk fixed
sd1: async, 8-bit transfers
sd1: 17365 MB, 7001 cyl, 20 head, 254 sec, 512 bytes/sect x 35565080 sectors
sd1: sync (50.00ns offset 8), 16-bit (40.000MB/s) transfers, tagged queueing

Any hint to debug this ?

Thanks in advance,
Regards.

-- 
Nicolas Joly

Biological Software and Databanks.
Institut Pasteur, Paris.