--- Martin McCormick [EMAIL PROTECTED]
wrote:
One of our FreeBSD systems has begun randomly
shutting down
its Ethernet interface. After doing so, the
box continues to try to
run but prints the following errors in syslog:
Jan 16 03:01:23 xx /kernel: fxp0: SCB timeout:
0x70 0x0 0x50 0x400
Jan 16 03:01:24 xx /kernel: fxp0: SCB timeout:
0xf0 0x0 0x50 0x400
Jan 16 03:01:35 xx last message repeated 9
times
Jan 16 03:01:40 xx /kernel: fxp0: device
timeout
Jan 16 03:01:40 xx /kernel: fxp0: DMA timeout
Jan 16 03:01:40 xx /kernel: fxp0: DMA timeout
If we reboot, the system may be okay for 4
months or 2 hours,
who knows? I can write a shell script to look
for any new messages
like those shown above so determining that the
failure has occurred is
not difficult especially since the system is
still running all be it
without a network connection.
Will bringing fxp0 down with ifconfig and then
back up as in
ifconfig fxp0 down
sleep 5
ifconfig fxp0 up
restore it to operation again?
I am asking because the system is unreachable
when fxp0 is
down. If one was logged in to that system, is
there anything we could
do to rescue it besides a full reboot?
I want to make it rescue itself if it can
since these things
always happen on holidays or weekends or at
03:00 in the morning.
This system doesn't die that often, but it is
often enough to
take measures to prevent it from needing our
laying on of hands at odd
hours.
Thank you.
Such things are usually caused by a bus error;
either the card or the bus may be slightly out of
spec, or some other card may be interfering.
You'll see such things, for example, when you put
a PCI-X card on a 133Mhz bus, and then you change
the bus to 100Mhz and it will never happen again.
You might not be able to recover. If you can
replace the card or try a different bus slot. If
your bus is overloaded (ie multiple cards, too
much trace length or too many loads) then
removing one card may fix it. If you are using a
non-intel card with an intel part on it I'd
suggest trying a different card.
DT
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