Do the following error messages indicate a controller or a disk
problem? The machine hangs shortly after these messages appear.

Thanks, Rex
------------------------------------------------------------
Rex McMaster                       rmcm@ariel.unimelb.edu.au     
                                  rmcm@paradiso.apana.org.au

Dec 24 11:36:46 johnson /netbsd: sd0(ahc0:0:0): non-media hardware failure, data = 00 28 00 00 01 38 06 29 03 00 43 05 00
02 00 00 00 00 02 28 00 00 30 44 88 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00
Dec 24 11:36:53 johnson /netbsd: sd0(ahc0:0:0): non-media hardware failure, data = 00 28 00 00 01 38 04 15 01 00 43 05 00
02 00 00 00 00 02 28 00 00 30 44 88 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00
Dec 24 11:37:03 johnson /netbsd: sd0(ahc0:0:0): non-media hardware failure, data = 00 2a 00 00 01 38 04 15 01 00 43 05 00
02 00 00 00 00 02 2a 00 00 2d 39 18 00 00 10 00 00 00 00 00 00 00 00 00 00 00 00
Dec 24 11:37:13 johnson /netbsd: sd0(ahc0:0:0): timed out in dataout phase, SCSISIGI == 0x0
Dec 24 11:37:14 johnson /netbsd: sd0(ahc0:0:0): BUS DEVICE RESET message queued.
Dec 24 11:37:14 johnson /netbsd: Bus Device Reset Message Sent
Dec 24 11:37:14 johnson /netbsd: sd0(ahc0:0:0): Bus Device Reset delivered. 2 SCBs aborted
Dec 24 11:37:22 johnson /netbsd: ahc0: target 0 synchronous at 10.0MHz, offset = 0xf
Dec 24 11:37:22 johnson /netbsd: sd0(ahc0:0:0): non-media hardware
failure, data = 00 2a 00 00 01 38 06 29 03 00 43 05 00

And the configuration -
-----------------------
Dec 24 12:29:53 johnson /netbsd: NetBSD 1.2 (johnson) #2: Wed Oct  2 04:02:55 PDT 1996
Dec 24 12:29:53 johnson /netbsd:     root@johnson.net.au:/usr/src/sys/arch/i386/compile/johnson
Dec 24 12:29:53 johnson /netbsd: CPU: Pentium (GenuineIntel 586-class CPU)
Dec 24 12:29:53 johnson /netbsd: real mem  = 33161216
Dec 24 12:29:53 johnson /netbsd: avail mem = 29175808
Dec 24 12:29:53 johnson /netbsd: using 430 buffers containing 1761280 bytes of memory
Dec 24 12:29:53 johnson /netbsd: mainbus0 (root)
Dec 24 12:29:53 johnson /netbsd: isa0 at mainbus0
Dec 24 12:29:54 johnson /netbsd: com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
Dec 24 12:29:54 johnson /netbsd: com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
Dec 24 12:29:54 johnson /netbsd: lpt0 at isa0 port 0x378-0x37f irq 7 
Dec 24 12:29:54 johnson /netbsd: lpt1 at isa0 port 0x278-0x27f: polled
Dec 24 12:29:54 johnson /netbsd: npx0 at isa0 port 0xf0-0xff: using exception 16 
Dec 24 12:29:54 johnson /netbsd: pc0 at isa0 port 0x60-0x6f irq 1: color
Dec 24 12:29:54 johnson /netbsd: pms0 at pc0 irq 12
Dec 24 12:29:54 johnson /netbsd: fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
Dec 24 12:29:54 johnson /netbsd: fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
Dec 24 12:29:54 johnson /netbsd: pci0 at mainbus0 bus 0: configuration mode 1
Dec 24 12:29:54 johnson /netbsd: vendor 0x8086 product 0x7030 (class bridge, subclass host, revision 0x01) at pci0 dev 0 f
unction 0 not configured
Dec 24 12:29:54 johnson /netbsd: vendor 0x8086 product 0x7000 (class bridge, subclass ISA, revision 0x01) at pci0 dev 7 fu
nction 0 not configured 
Dec 24 12:29:54 johnson /netbsd: ahc0 at pci0 dev 10 function 0
Dec 24 12:29:54 johnson /netbsd: ahc0: interrupting at irq 11
Dec 24 12:29:54 johnson /netbsd: ahc0: Reading SEEPROM...done.
Dec 24 12:29:54 johnson /netbsd: ahc0: aic7880 Single Channel, SCSI Id=7, 16 SCBs
Dec 24 12:29:54 johnson /netbsd: ahc0: Reseting Channel A 
Dec 24 12:29:54 johnson /netbsd: ahc0: Downloading Sequencer Program...Done 
Dec 24 12:29:54 johnson /netbsd: scsibus0 at ahc0
Dec 24 12:29:54 johnson /netbsd: ahc0: target 0 synchronous at 10.0MHz, offset = 0xf
Dec 24 12:29:54 johnson /netbsd: sd0 at scsibus0 targ 0 lun 0: <FUJITSU, M2952S-512, 0122> SCSI2 0/direct fixed
Dec 24 12:29:54 johnson /netbsd: sd0: 2291MB, 5714 cyl, 5 head, 164 sec, 512 bytes/sec
Dec 24 12:29:54 johnson /netbsd: ahc0: target 1 synchronous at 5.0MHz, offset = 0xf
Dec 24 12:29:55 johnson /netbsd: cd0 at scsibus0 targ 1 lun 0: <MATSHITA, CD-ROM CR-504-J, SS17> SCSI2 5/cdrom removable
Dec 24 12:29:55 johnson /netbsd: ahc0: target 2 synchronous at 4.4MHz, offset = 0xe
Dec 24 12:29:55 johnson /netbsd: st0 at scsibus0 targ 2 lun 0: <WANGTEK, 51000  SCSI, B26C> SCSI2 1/sequential removable
Dec 24 12:29:55 johnson /netbsd: st0: drive empty
Dec 24 12:29:55 johnson /netbsd: vendor 0x5333 product 0x8811 (class display, subclass VGA, revision 0x54) at pci0 dev 11
function 0 not configured
Dec 24 12:29:55 johnson /netbsd: biomask 840 netmask 840 ttymask 18da
Dec 24 12:29:55 johnson /netbsd: changing root device to sd0a