View Full Version : [ubuntu] MCP61 (nVidia) Ethernet Receive Errors

December 4th, 2008, 08:39 PM
Hi folks,

I can't tell if this just happened or what, but suddenly I have 1 machine that is dog slow from the network. In researching, I found that the ethernet is having lots of errors:

RX packets:1532532 errors:258062 dropped:0 overruns:0 frame:177885

Ubuntu 7.10
Linux hpserver 2.6.22-14-generic #1 SMP Sun Oct 14 21:45:15 GMT 2007 x86_64 GNU/Linux

dmesg | grep eth0 gives:
[ 30.907001] eth0: forcedeth.c: subsystem: 0103c:2a58 bound to 0000:00:07.0
[ 44.673752] bridge-eth0: enabling the bridge
[ 44.673870] bridge-eth0: up
[ 44.673968] bridge-eth0: already up
[ 44.673971] bridge-eth0: attached
[ 45.324489] eth0: no IPv6 routers present
[ 49.310214] device eth0 entered promiscuous mode
[ 49.310221] audit(1228254050.021:4): dev=eth0 prom=256 old_prom=0 auid=4294967295
[ 49.310223] bridge-eth0: enabled promiscuous mode

00:07.0 Bridge: nVidia Corporation MCP61 Ethernet (rev a2)
Subsystem: Hewlett-Packard Company Unknown device 2a58
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23
Memory at fe02d000 (32-bit, non-prefetchable) [size=4K]
I/O ports at ec00 [size=8]
Capabilities: [44] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/3 Enable-
Capabilities: [6c] HyperTransport: MSI Mapping

If I do an iperf test, I get these results:

[ 3] 0.0-10.0 sec 16.2 MBytes 13.6 Mbits/sec

A machine right beside it gives:
[ 3] 0.0-10.0 sec 101 MBytes 84.4 Mbits/sec

I've searched ad-nauseum here, internet, nvidia, etc, but can't figure out where to turn. Can anybody point me to my next step?

December 5th, 2008, 05:44 AM
Try 'sudo modprobe forcedeth' and check with 'sudo dmesg'