.94 Floppies and Ethernet

Jeff Haumont (operator@abel-jhaumont.unl.edu)
Tue, 23 Apr 1996 16:36:14 -0500 (CDT)


I am getting this in my syslog:

Apr 23 12:50:42 vorlon kernel: eth0: Bus master arbitration failure,
status 88f2.
Apr 23 12:50:42 vorlon kernel: eth0: Bus master arbitration failure,
status 8cf2.
Apr 23 12:50:42 vorlon kernel: eth0: Bus master arbitration failure,
status 8cf2.
Apr 23 12:50:42 vorlon kernel: eth0: Bus master arbitration failure,
status 88f2.
Apr 23 12:50:47 vorlon last message repeated 4 times
Apr 23 12:50:51 vorlon kernel: eth0: Bus master arbitration failure,
status 8cf2.
Apr 23 12:51:27 vorlon kernel: eth0: Bus master arbitration failure,
status 88f2.
Apr 23 12:51:57 vorlon last message repeated 18 times
Apr 23 12:52:20 vorlon last message repeated 3 times
Apr 23 12:52:22 vorlon kernel: eth0: Bus master arbitration failure,
status 8cf2.
Apr 23 12:52:22 vorlon kernel: eth0: Bus master arbitration failure,
status 88f2.
Apr 23 12:52:26 vorlon last message repeated 5 times
Apr 23 12:52:27 vorlon kernel: eth0: Bus master arbitration failure,
status 8cf2.
Apr 23 12:52:27 vorlon kernel: eth0: Bus master arbitration failure,
status 88f2.
Apr 23 12:52:27 vorlon kernel: eth0: Bus master arbitration failure,
status 88f2.

by writing to the floppy drive on my machine. My floppy driver is
compiled as a module and autoloaded by kerneld. (It doesn't matter
whether or not the module is loaded permenantly by modprobe or
autoloaded. I haven't tried it compiled in) My ethernet card is an
AT-1500BT with the Lance chipset.

I generated this particular mess by first running:
dd if=/dev/fd0 of=floppy
which did not produce any errors, and then
dd if=floppy of=/dev/fd0
which generated all of the above messages. The errors only occur when
the floppy is actually being written to physically (light is on).
Playing around in the cache does not cause any problems.

My kernel is:
Linux version 1.3.94 (root@vorlon) (gcc version 2.7.2) #1 Mon Apr 22
16:53:48 CDT 1996

My machine is a Gateway DX-100 VLB (Micronics motherboard ~1993) with
on board IDE and floppy controller - floppies connected here
AT-1500BT
Adaptec 2842A with floppy interface disabled
PAS 16 with SCSI disabled
24 Meg memory
Diamond Viper video card

I'm willing to try other kernels etc if someone requests it.

Thanks,
Jeff Haumont (jhaumont@cse.unl.edu)

I am also using:
libc-5.3.9 (with a homebrewed patch to fix the rlogin problem)
binutils-2.6.0.12
ld.so-1.7.14
modules-1.3.69f

Startup from syslog (BTW Why is this in syslog now instead of messages?)

Console: 8 point font, 400 scans
Console: colour VGA+ 80x50, 1 virtual console (max 63)
Calibrating delay loop.. ok - 49.77 BogoMIPS
Memory: 23068k/24576k available (564k kernel code, 384k reserved, 560k data)
This processor honours the WP bit even when in supervisor mode. Good.
Swansea University Computer Society NET3.034 for Linux 1.3.77
NET3: Unix domain sockets 0.12 for Linux NET3.033.
Swansea University Computer Society TCP/IP for NET3.034
IP Protocols: IGMP, ICMP, UDP, TCP
VFS: Diskquotas version dquot_5.6.0 initialized
Checking 386/387 coupling... Ok, fpu using exception 16 error reporting.
Checking 'hlt' instruction... Ok.
Linux version 1.3.94 (root@vorlon) (gcc version 2.7.2) #1 Mon Apr 22
16:53:48 CDT 1996
Real Time Clock Driver v1.04
hda: WDC AC2420H, 405MB w/128kB Cache, CHS=989/15/56
hdb: ST3491A-XR, 408MB w/120kB Cache, CHS=899/15/62
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
aic7xxx: Reading SEEPROM...done.
aic7xxx: Extended translation disabled.
aic7xxx: AHA-2840 Rev E and subsequent.
aic7xxx: Using 4 SCB's after checking for SCB memory.
aic7xxx: Using level sensitive interrupts.
AHA-2840 AT VLB SLOT 4:
irq 11
bus release time 40 bclks
data fifo threshold 100
SCSI CHANNEL A:
scsi id 7
scsi selection timeout 256 ms
scsi bus reset at power-on enabled
scsi bus parity enabled
scsi bus termination (low byte) enabled
aic7xxx: Downloading sequencer code...done.
aic7xxx: Resetting the SCSI bus...done.
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 3.0/3.0/3.0
scsi : 1 host.
aic7xxx: Scanning channel A for devices.
Started kswapd v 1.4.2.2
aic7xxx: Target 0, channel A, now synchronous at 10.0MHz, offset(0xf).
Vendor: IBM Model: DPES-31080 !t Rev: S31K
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
aic7xxx: Target 4, channel A, now synchronous at 5.0MHz, offset(0xf).
Vendor: NEC Model: CD-ROM DRIVE:400 Rev: 1.0
Type: CD-ROM ANSI SCSI revision: 02
scsi : detected 1 SCSI disk total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 2118144 [1034 MB] [1.0 GB]
eth0: PCnet/ISA 79C960 at 0x300, 00 00 f4 a9 9a 64, probed IRQ 15, DMA 7.
lance.c:v1.08.02 Mar 17 1996 tsbogend@bigbug.franken.de
Partition check:
sda: sda1 sda2 < sda5 sda6 sda7 > sda3
hda: hda1 hda2 hda3 hda4 < hda5 >
hdb: hdb1 hdb2 hdb3 < hdb5 >
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 7108k swap-space
Adding Swap: 20888k swap-space
Adding Swap: 11260k swap-space
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 4, lun 0
Serial driver version 4.12 with no serial options enabled
tty00 at 0x03f8 (irq = 4) is a 16550A
tty01 at 0x02f8 (irq = 3) is a 16550A
-----------------------------------------------------
Jeff Haumont - jhaumont@cse.unl.edu
Mail also forwarded to operator@vorlon.unl.edu
finger jhaumont@cse.unl.edu for PGP public key