On 3/4/07, Duane Whitty <[EMAIL PROTECTED]> 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:
>
> [EMAIL PROTECTED]:0:0: class=0x020000 card=0x000015d9 chip=0x10968086
rev=0x01 hdr=0x00
> [EMAIL PROTECTED]:0:1: class=0x020000 card=0x000015d9 chip=0x10968086
rev=0x01 hdr=0x00
>
>
> The symptom:
>
> The machine boots OK, but can only intermittently make netork connections.
> Eventually determined that it seems to only see a few ARP packets, so
> it's falling out of other machines' ARP tables, and is often unable to
> see the replies to its own ARP requests. It does see SOME ARPs
> though. When it is able to communicate with another machine, it
> does not appear to drop any packets between them (e.g. I scp'd a 500M file
> at 300Mbps to this machine).
>
> When I run "tcpdump -n arp" I see a few ARPs, but not many. In a 1-minute
> period, I saw 3 ARP who-has/reply packets. On a different machine on
> the same ethernet switch, I saw 225 who-has/reply packets in the same
> 1-minute period.
>
> I've tried different cables, and a different switch. I started with
> 6.2-RELEASE, and then went to 6.2-STABLE on 3/3/07 to get the latest
> em driver fixes. I've used SMP and GENERIC kernels. I get the same
> results in all cases.
>
> There are no firewall rules installed.
>
> 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
_______________________________________________
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "[EMAIL PROTECTED]"