port-alpha/46776: NetBSD alpha crashes with Delock 81940 multifunction PCI card

[vezhlys%gmail.com@localhost]

>Number:         46776
>Category:       port-alpha
>Synopsis:       NetBSD alpha crashes with Delock 81940 multifunction PCI card
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-alpha-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Aug 06 21:50:00 +0000 2012
>Originator:     Andrius V
>Release:        NetBSD-6 BETA
>Organization:
>Environment:
NetBSD  6.0_BETA NetBSD 6.0_BETA (GENERIC-$Revision: 1.343 $) alpha
>Description:
NetBSD alpha crashes into ddb with Delock 81940 multifunction PCI card (USB, 
SATA/IDE controllers) installed on Microway Screamer 400 (DEC AlphaPC 164 
clone). It has VIA VT6214L (USB controller) and VIA VT6421A (SATA/IDE 
controller) chips. I used it on 5.1.x release (including 5.1.2) and netbsd 
"current" at the end of 2011. Because of this I can't tell when it broke. I can 
confirm that this problem still exists on current netbsd-6 branch. The only 
caveat that 5.1 version didn't configure USB controller at all but NetBSD still 
booted successfully: 

from NetBSD 5.1.2 boot log:
uhci0 at pci0 dev 9 function 0: Reply Group product 0x3038 (rev. 0x61)
uhci0: can't map i/o space
VIA Technologies VT83C572 USB Controller (USB serial bus, interface 0x01, revisi
on 0x61) at pci0 dev 9 function 1 not configured
ehci0 at pci0 dev 9 function 2: Reply Group product 0x3249 (rev. 0x63)
ehci0: can't map memory space

NetBSD 6.0 BETA boot log:
(boot dqa0.0.0.11.0 -flags A)
block 0 of dqa0.0.0.11.0 is a valid boot block
reading 13 blocks from dqa0.0.0.11.0
bootstrap code read in
base = 180000, image_start = 0, image_bytes = 1a00
initializing HWRPB at 2000
initializing page table at 172000
initializing machine state
setting affinity to the primary CPU
jumping to bootstrap code

NetBSD/alpha 6.0_BETA FFS Primary Bootstrap
Jumping to entry point...

NetBSD/alpha 6.0_BETA Secondary Bootstrap, Revision 1.13

VMS PAL rev: 0x1000900010115
OSF PAL rev: 0x1000800020117
Switch to OSF PAL code succeeded.

Boot flags: A
10292224+302904 [563808+374940]=0xb00638

Entering netbsd at 0xfffffc0000431230...
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009, 2010, 2011, 2012
    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 6.0_BETA (GENERIC-$Revision: 1.343 $)
Digital AlphaPC 164 500 MHz, s/n
8192 byte page size, 1 processor.
total memory = 256 MB
(2472 KB reserved for PROM, 253 MB used by NetBSD)
avail memory = 239 MB
mainbus0 (root)
cpu0 at mainbus0: ID 0 (primary), 21164A-2
cpu0: Architecture extensions: 0x1<BWX>
cia0 at mainbus0: DECchip 2117x Core Logic Chipset (ALCOR/ALCOR2), pass 3
cia0: extended capabilities: 0x21<DWEN,BWEN>
cia0: using BWX for PCI config access
pci0 at cia0 bus 0
vga0 at pci0 dev 5 function 0: S3 ViRGE/DX (rev. 0x01)
wsdisplay0 at vga0 kbdmux 1
drm at vga0 not configured
ahc0 at pci0 dev 6 function 0: Adaptec 29160B Ultra160 SCSI adapter
ahc0: interrupting at eb164 irq 0
ahc0: aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
scsibus0 at ahc0: 16 targets, 8 luns per target
vr0 at pci0 dev 7 function 0: VIA Technologies VT6105 (Rhine III) 10/100 Ethern)
vr0: interrupting at eb164 irq 1
vr0: Ethernet address: 00:0d:88:b2:ab:da
ukphy0 at vr0 phy 1: OUI 0x0002c6, model 0x0034, rev. 4
ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
sio0 at pci0 dev 8 function 0: Intel 82378ZB System I/O (rev. 0x43)
uhci0 at pci0 dev 9 function 0: Reply Group product 0x3038 (rev. 0x61)

(null):

    mces    = 0x1
    vector  = 0x660
    param   = 0xfffffc0000006060
    pc      = 0xfffffc00004e6268
    ra      = 0xfffffc0000a356a0
    code    = 0x20f
    curlwp = 0xfffffc0000ddbac0
        pid = 0.1, comm = system

panic: machine check
Stopped in pid 0.1 (system) at  netbsd:cpu_Debugger+0x4:        ret     zero,(ra
)
db>
>How-To-Repeat:
Install NetBSD into hdd and boot with Delock card installed.
>Fix: