>Number:         26031
>Category:       port-alpha
>Synopsis:       KZPCM-DA (siop + tlp behind ppb) hangs at SCSI device detection
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    port-alpha-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jun 24 01:00:00 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator:     Rumi Szabolcs
>Release:        netbsd-2-0_BETA-20040623
>Organization:
>Environment:
NetBSD 2.0-BETA releng snapshot from Jun 23, 2004
>Description:
The card in question is a DEC KZPCM-DA a.k.a. Intraserver ITI4280UE-4V,
has two SYM53C875's and a DEC 21140 behind a DEC 21152 PCI bridge.

I booted the above snapshot INSTALL kernel (from network):

NetBSD 2.0_BETA (INSTALL) #0: Wed Jun 23 17:33:14 UTC 2004
	autobuild@tgm.netbsd.org:/autobuild/netbsd-2-0/alpha/OBJ/autobuild/netbsd-2-0/src/sys/arch/alpha/compile/INSTALL
DIGITAL Server 7000 Model 7305 6533A 5/533 4MB, 531MHz, s/n PY84800391
8192 byte page size, 2 processors.
total memory = 512 MB
(2064 KB reserved for PROM, 509 MB used by NetBSD)
avail memory = 492 MB
mainbus0 (root)
cpu0 at mainbus0: ID 0 (primary), 21164A-2
cpu0: Architecture extensions: 1<BWX>
cpu1 at mainbus0: ID 1, 21164A-2
cpu1: processor off-line; multiprocessor support not present in kernel
mcbus0 at mainbus0: 4MB BCache
mcmem0 at mcbus0 mid 1: Memory
mcpcia0 at mcbus0 mid 5: PCI Bridge
mcpcia0: Horse Revision 3, Left Handed Saddle Revision 3, CAP Revision 2
pci0 at mcpcia0 bus 0
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
siop0 at pci0 dev 1 function 0: Symbios Logic 53c810 (fast scsi)
siop0: interrupting at kn300 irq 36
scsibus0 at siop0: 8 targets, 8 luns per target
ppb0 at pci0 dev 2 function 0: vendor 0x1011 product 0x0024 (rev. 0x02)
pci1 at ppb0 bus 2
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
siop1 at pci1 dev 0 function 0: Symbios Logic 53c875 (ultra-wide scsi)
siop1: using on-board RAM
siop1: interrupting at kn300 irq 40
scsibus1 at siop1: 16 targets, 8 luns per target
siop2 at pci1 dev 1 function 0: Symbios Logic 53c875 (ultra-wide scsi)
siop2: using on-board RAM
siop2: interrupting at kn300 irq 41
scsibus2 at siop2: 16 targets, 8 luns per target
tlp0 at pci1 dev 2 function 0: DECchip 21140A Ethernet, pass 2.2
tlp0: interrupting at kn300 irq 42
tlp0: Ethernet address 00:06:2b:00:0b:ac
nsphy0 at tlp0 phy 5: DP83840 10/100 media interface, rev. 1
nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
mcpcia1 at mcbus0 mid 4: PCI Bridge
mcpcia1: Horse Revision 3, Left Handed Saddle Revision 3, CAP Revision 2
pci2 at mcpcia1 bus 0
pci2: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pceb0 at pci2 dev 1 function 0: vendor 0x8086 product 0x0482 (rev. 0x15)
vga0 at pci2 dev 2 function 0: vendor 0x5333 product 0x8811 (rev. 0x54)
wsdisplay0 at vga0 (kbdmux ignored)
eisa0 at pceb0
isa0 at pceb0
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
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0 (mux ignored)
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 (mux ignored)
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
mcclock0 at isa0 port 0x70-0x71: mc146818 or compatible
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
md0: internal 4650 KB image area
scsibus0: waiting 2 seconds for devices to settle...
scsibus1: waiting 2 seconds for devices to settle...
scsibus2: waiting 2 seconds for devices to settle...
cd0 at scsibus0 target 5 lun 0: <DEC, RRD46   (C) DEC, 1337> cdrom removable
cd0: sync (100.00ns offset 8), 8-bit (10.000MB/s) transfers
sd0 at scsibus1 target 0 lun 0: <QUANTUM, VIKING II 4.5SCA, 5520> disk fixed
sd0: 4095 MB, 5899 cyl, 10 head, 142 sec, 512 bytes/sect x 8388315 sectors
sd0: sync (50.00ns offset 16), 16-bit (40.000MB/s) transfers, tagged queueing
probe(siop2:0:0:0): command timeout, CDB: 0x12 00 00 00 24 00

>How-To-Repeat:
Just boot a kernel on a machine that has such a card. May or may
not be an AlphaServer 4100 / Digital Server 7300 specific problem.
I'll have this particular machine available for testing for
a short period of time, contact me ASAP if you want me to help.

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: