>Number:         11891
>Category:       kern
>Synopsis:       NetBSD 1.5/current fails to work with Adaptec 2944 Ultra Wide Controllers
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jan 04 06:08:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Dave Tyson
>Release:        NetBSD-current/NetBSD 1.5
>Organization:
	The University of Liverpool
>Environment:
	
System: NetBSD splunge 1.5Q NetBSD 1.5Q (SPLUNGE) #2: Tue Jan  2 11:52:57 GMT 2001 root@splunge:/usr/src/sys/arch/i386/compile/SPLUNGE i386
Architecture: i386
Machine: i386
>Description:
Fault shows on two more or less identical machines:
Hardware is a Pentium II on Tyan Tiger Motherboard. Two Adaptec AHA-2944 
ultrawide SCSI card with 4 UW barracuda disks on each. 

System has been faultless under 1.3.2, but it was desirable to upgrade to 1.5.
Attempts to boot 1.5 result in SCSI timeouts for every target and no disks
are found.

1.4.3 installed OK and is running fine - but really want to move to 1.5 ASAP.

Below are the boot messages, first 1.4.3 which runs OK then the 1.5Q install
log. The 1.5 install hung after a few scsi timeouts.

NetBSD 1.4.3 (WEBCACHE) #4: Thu Dec 21 08:59:45 GMT 2000 root@webcache2:
/usr/src/sys/arch/i386/compile/WEBCACHE
cpu0: family 6 model 5 step 0
cpu0: Intel Pentium II (686-class)
real mem  = 536477696
avail mem = 494727168
using 4870 buffers containing 26927104 bytes of memory
mainbus0 (root)
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o enabled, memory enabled
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82443LX PCI AGP Controller (PAC) (rev. 0x03)
ppb0 at pci0 dev 1 function 0: Intel 82443LX AGP Interface (PAC) (rev. 0x03)
pci1 at ppb0 bus 1
pci1: i/o enabled, memory enabled
pcib0 at pci0 dev 7 function 0
pcib0: Intel 82371AB PCI-to-ISA Bridge (PIIX4) (rev. 0x01)
pciide0 at pci0 dev 7 function 1: Intel 82371AB IDE controller (PIIX4) (rev. 0x01)
pciide0: bus-master DMA support present
pciide0: primary channel wired to compatibility mode
wd0 at pciide0 channel 0 drive 0: <QUANTUM FIREBALL CR4.3A>
wd0: drive supports 16-sector pio transfers, lba addressing
wd0: 4110MB, 14848 cyl, 9 head, 63 sec, 512 bytes/sect x 8418816 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4
pciide0: primary channel interrupting at irq 14
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (using DMA data transfers)
pciide0: secondary channel wired to compatibility mode
pciide0: disabling secondary channel (no drives)
uhci0 at pci0 dev 7 function 2: Intel 82371AB USB Host Controller (PIIX4) (rev. 0x01)
uhci0: interrupting at irq 10
uhci0: USB version 1.0
usb0 at uhci0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
Intel 82371AB Power Management Controller (PIIX4) (miscellaneous bridge, revision 0x01) at pci0 dev 7 function 3 not configured
ahc1 at pci0 dev 11 function 0
ahc1: interrupting at irq 11
ahc1: aic7880 Wide Channel, SCSI Id=7, 16 SCBs
scsibus0 at ahc1 channel 0: 16 targets, 8 luns per target
ahc1: target 0 using 16Bit transfers
ahc1: target 0 synchronous at 10.0MHz, offset = 0x8
sd0 at scsibus0 targ 0 lun 0: <SEAGATE, ST34573WD, 5764> SCSI2 0/direct fixed
sd0: 4340MB, 7501 cyl, 5 head, 237 sec, 512 bytes/sect x 8888924 sectors
ahc1: target 1 using 16Bit transfers
ahc1: target 1 synchronous at 10.0MHz, offset = 0x8
sd1 at scsibus0 targ 1 lun 0: <SEAGATE, ST34573WD, 5764> SCSI2 0/direct fixed
sd1: 4340MB, 7501 cyl, 5 head, 237 sec, 512 bytes/sect x 8888924 sectors
ahc1: target 2 using 16Bit transfers
ahc1: target 2 synchronous at 10.0MHz, offset = 0x8
sd2 at scsibus0 targ 2 lun 0: <SEAGATE, ST34573WD, 5764> SCSI2 0/direct fixed
sd2: 4340MB, 7501 cyl, 5 head, 237 sec, 512 bytes/sect x 8888924 sectors
ahc1: target 3 using 16Bit transfers
ahc1: target 3 synchronous at 10.0MHz, offset = 0x8
sd3 at scsibus0 targ 3 lun 0: <SEAGATE, ST34573WD, 5764> SCSI2 0/direct fixed
sd3: 4340MB, 7501 cyl, 5 head, 237 sec, 512 bytes/sect x 8888924 sectors
ahc2 at pci0 dev 12 function 0
ahc2: interrupting at irq 9
ahc2: aic7880 Wide Channel, SCSI Id=7, 16 SCBs
scsibus1 at ahc2 channel 0: 16 targets, 8 luns per target
ahc2: target 0 using 16Bit transfers
ahc2: target 0 synchronous at 10.0MHz, offset = 0x8
sd4 at scsibus1 targ 0 lun 0: <SEAGATE, ST34573WD, 5764> SCSI2 0/direct fixed
sd4: 4340MB, 7501 cyl, 5 head, 237 sec, 512 bytes/sect x 8888924 sectors
ahc2: target 1 using 16Bit transfers
ahc2: target 1 synchronous at 10.0MHz, offset = 0x8
sd5 at scsibus1 targ 1 lun 0: <SEAGATE, ST34573WD, 5764> SCSI2 0/direct fixed
sd5: 4340MB, 7501 cyl, 5 head, 237 sec, 512 bytes/sect x 8888924 sectors
ahc2: target 2 using 16Bit transfers
ahc2: target 2 synchronous at 10.0MHz, offset = 0x8
sd6 at scsibus1 targ 2 lun 0: <SEAGATE, ST34573WD, 5764> SCSI2 0/direct fixed
sd6: 4340MB, 7501 cyl, 5 head, 237 sec, 512 bytes/sect x 8888924 sectors
ahc2: target 3 using 16Bit transfers
ahc2: target 3 synchronous at 10.0MHz, offset = 0x8
sd7 at scsibus1 targ 3 lun 0: <SEAGATE, ST34573WD, 5764> SCSI2 0/direct fixed
sd7: 4340MB, 7501 cyl, 5 head, 237 sec, 512 bytes/sect x 8888924 sectors
fxp0 at pci0 dev 13 function 0: Intel EtherExpress Pro 10+/100B Ethernet
fxp0: interrupting at irq 5
fxp0: Ethernet address 00:d0:b7:ae:9c:3f
inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 4
inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp1 at pci0 dev 14 function 0: Intel EtherExpress Pro 10+/100B Ethernet
fxp1: interrupting at irq 10
fxp1: Ethernet address 00:d0:b7:ae:9e:39
inphy1 at fxp1 phy 1: i82555 10/100 media interface, rev. 4
inphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
vga1 at pci0 dev 15 function 0: Cirrus Logic CL-GD5446 (rev. 0x45)
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
isa0 at pcib0
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 0x378-0x37b irq 7
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard
opms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
isapnp0: no ISA Plug 'n Play devices found
biomask 4e40 netmask 4e60 ttymask 5ee2
wscons: wskbd0 glued to wsdisplay0 (console)
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs


>How-To-Repeat:
Try and boot 1.5/1.5Q on the above hardware	
>Fix:
	None known.

--
=====================================================================
Computing Services Dept         Phone/Fax: 0151-794-3731/3759
The University of Liverpool     Email: dtyson@liv.ac.uk
Chadwick Tower, Peach Street    WWW:   http://www.liv.ac.uk/~dtyson	
Liverpool L69 7ZF               
=====================================================================

>Release-Note:
>Audit-Trail:
>Unformatted:
 >> NetBSD/i386 BIOS Boot, Revision 2.8
 >> (root@splunge, Sun Dec 31 08:58:46 GMT 2000)
 >> Memory: 639/523264 k
 Use hd1a:netbsd to boot sd0 when wd0 is also installed
 Press return to boot now, any other key for boot menu
 booting fd0a:netbsd - starting in 5
 Please remove disk 1, insert disk 2, and press return...
 [ netbsd ELF symbol table not valid ]
 [ netbsd a.out symbol table not valid ]
 [ no symbol table formats found ]
 Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001
     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 1.5Q (INSTALL) #0: Sun Dec 31 12:53:20 GMT 2000
     root@splunge:/usr/src/sys/arch/i386/compile/INSTALL
 cpu0: Intel Pentium II/Celeron (Deschutes) (686-class), 333.10 MHz
 cpu0: I-cache 16K 32b/line 4-way, D-cache 16K 32b/line 2/4-way
 cpu0: L2 cache 512K 32b/line 4-way
 cpu0: features 183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
 cpu0: features 183fbff<PGE,MCA,CMOV,FGPAT,PSE36,MMX,FXSR>
 total memory = 511 MB
 avail memory = 469 MB
 using 6574 buffers containing 26296 KB of memory
 BIOS32 rev. 0 found at 0xfdb70
 mainbus0 (root)
 pci0 at mainbus0 bus 0: configuration mode 1
 pci0: i/o space, memory space enabled
 pchb0 at pci0 dev 0 function 0
 pchb0: vendor 0x8086 product 0x7180 (rev. 0x03)
 ppb0 at pci0 dev 1 function 0: vendor 0x8086 product 0x7181 (rev. 0x03)
 pci1 at ppb0 bus 1
 pci1: i/o space, memory space enabled
 pcib0 at pci0 dev 7 function 0
 pcib0: vendor 0x8086 product 0x7110 (rev. 0x01)
 pciide0 at pci0 dev 7 function 1: Intel 82371AB IDE controller (PIIX4) (rev. 0x01)
 pciide0: bus-master DMA support present
 pciide0: primary channel wired to compatibility mode
 wd0 at pciide0 channel 0 drive 0: <FUJITSU MPC3043AT>
 wd0: drive supports 16-sector PIO transfers, LBA addressing
 wd0: 4125 MB, 8940 cyl, 15 head, 63 sec, 512 bytes/sect x 8448300 sectors
 wd0: 32-bit data port
 wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
 pciide0: primary channel interrupting at irq 14
 wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA data transfers)
 pciide0: secondary channel wired to compatibility mode
 pciide0: disabling secondary channel (no drives)
 uhci0 at pci0 dev 7 function 2: vendor 0x8086 product 0x7112 (rev. 0x01)
 uhci0: interrupting at irq 10
 usb0 at uhci0: USB revision 1.0
 uhub0 at usb0
 uhub0: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub0: 2 ports with 2 removable, self powered
 vendor 0x8086 product 0x7113 (miscellaneous bridge, revision 0x01) at pci0 dev 7 function 3 not configured
 ahc1 at pci0 dev 11 function 0
 ahc1: interrupting at irq 11
 ahc1: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
 scsibus0 at ahc1 channel 0: 16 targets, 8 luns per target
 ahc2 at pci0 dev 12 function 0
 ahc2: interrupting at irq 9
 ahc2: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
 scsibus1 at ahc2 channel 0: 16 targets, 8 luns per target
 fxp0 at pci0 dev 14 function 0: Intel i82557 Ethernet, rev 2
 fxp0: interrupting at irq 10
 fxp0: Ethernet address 00:a0:c9:af:25:c2, 10/100 Mb/s
 inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 0
 inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
 vendor 0x1013 product 0x00b8 (VGA display, revision 0x45) at pci0 dev 15 function 0 not configured
 isa0 at pcib0
 com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
 com0: console
 com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
 isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
 npx0 at isa0 port 0xf0-0xff: using exception 16
 pc0 at isa0 port 0x60-0x6f irq 1: color
 fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
 fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
 isapnp0: no ISA Plug 'n Play devices found
 biomask ffe5 netmask ffe5 ttymask ffe7
 scsibus0: waiting 2 seconds for devices to settle...
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): Queuing a BDR SCB
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:0:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:0:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:0:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:0:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:0:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:0:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:0:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:0:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:0:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:1:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:1:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:1:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:1:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:1:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:1:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:1:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:1:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:1:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:1:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:2:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 
 [similar messages deleted to reduce boredom]
 
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:15:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:15:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:15:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:15:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:15:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc1:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc1:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc1:15:0): no longer in timeout, status = 0
 ahc1: Issued Channel A Bus Reset. 2 SCBs aborted
 scsibus1: waiting 2 seconds for devices to settle...
 ahc2: target 0 using 16bit transfers
 ahc2: target 0 synchronous at 10.0MHz, offset = 0x8
 probe(ahc2:0:0): SCB 1d - timed out in Message-in phase, SEQADDR == 0x18c
 SCSIRATE == 0x88
 probe(ahc2:0:0): BDR message in message buffer
 probe(ahc2:0:0): SCB 1d - timed out in Message-in phase, SEQADDR == 0x18c
 SCSIRATE == 0x88
 probe(ahc2:0:0): no longer in timeout, status = 2
 ahc2: Issued Channel A Bus Reset. 1 SCBs aborted
 probe(ahc2:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:0:0): Queuing a BDR SCB
 probe(ahc2:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:0:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:0:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:0:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:0:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:0:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:0:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:0:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:0:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:0:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:0:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:0:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 ahc2: target 0 using 16bit transfers
 ahc2: target 0 synchronous at 10.0MHz, offset = 0x8
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): Queuing a BDR SCB
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:1:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:1:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:1:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:1:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:1:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:1:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:1:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:1:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:1:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:1:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:1:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 
 [similar messages deleted to reduce boredom]
 
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:15:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:15:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:15:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:15:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:15:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:15:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:15:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:15:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:15:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 probe(ahc2:15:0): SCB 1d - timed out while idle, SEQADDR == 0x18c
 SCSIRATE == 0x0
 probe(ahc2:15:0): SCB 1d: Immediate reset.  Flags = 0x4040
 probe(ahc2:15:0): no longer in timeout, status = 0
 ahc2: Issued Channel A Bus Reset. 2 SCBs aborted
 md0: internal 2048K image area
 boot device: fd0
 root on md0a dumps on md0b
 WARNING: NVRAM century is 20 but RTC year is 2001
 root file system type: ffs
 erase ^?, werase ^W, kill ^U, intr ^C
 
 ahc_pci.c is very different between the 1.4/1.5 branches.