ARP problem with 6.2-STABLE Intel PRO/1000 NIC, latest em

[Chris Rees]

On 3/4/07, Duane Whitty <duane at dwlabs.ca> wrote:
> On Sun, Mar 04, 2007 at 11:30:07PM -0700, Mark Costlow wrote:
> > The Machine:
> >
> > I have a dual Xeon 5130 machine, Supermicro motherboard, with
> > the 82563EB NIC.  From dmesg:
> >
> > CPU: Intel(R) Xeon(R) CPU            5130  @ 2.00GHz (2000.08-MHz 686-class CPU)
> > cpu0: <ACPI CPU> on acpi0
> > em0: <Intel(R) PRO/1000 Network Connection Version - 6.2.9> port 0x2000-0x201f mem 0xda000000-0xda01ffff irq 18 at device 0.0 on pci4
> >
> > The machine has 4G RAM and a 3ware 9000 series RAID controller with 2 drives.
> >
> > pciconf -l says:
> >
> > em0 at pci4:0:0:   class=0x020000 card=0x000015d9 chip=0x10968086 rev=0x01 hdr=0x00
> > em1 at pci4:0:1:   class=0x020000 card=0x000015d9 chip=0x10968086 rev=0x01 hdr=0x00
> >> I plugged in a USB ethernet adapter (realtek), and it works straight away.
> >> "tcpdump -n arp" sees the same noise as other machines on that LAN.
>> >
>
>> Sounds like it could be bad hardware.  Can you swap nics?

>No he can't these are LOMs (on the motherboard).

> >> I read through the recent threads on the em driver, but didn't see any
> >> reported symptoms like this.  Has anyone seen anything like this?  Got
> >> any hints for me?  Am I doing something stupid?  Did I leave out any
> >> useful information about my configuration?
>> >
>>
>> Maybe more of your dmesg might help as it could show interrrupt issues
>> that perhaps others could help diagnose

>Yes, agreed, this might be revealing.

>Jack


If your NIC is knackered, where are you from? I can post you one I'm
not using, instead of you buying one. It's a Realtek PCI 8139 10/100
Mb/s. Let me know if you're interested.

Chris