9.1-RC3 IGB dropping connections.

Mike Tancsa mike at sentex.net
Wed Nov 28 02:26:14 UTC 2012

On 11/27/2012 5:27 PM, Zaphod Beeblebrox wrote:
> I've got an Intel server motherboard with 4x igb (and 1x em) on it.
> The motherboard in question is the S3420GPRX and the IGB's show up as:
> igb0: <Intel(R) PRO/1000 Network Connection version - 2.3.4> port
> 0x3020-0x303f mem 0xb1b20000-0xb1b3ffff,0xb1bc4000-0xb1bc7fff irq 19
> at device 0.0 on pci3
> igb0: Using MSIX interrupts with 9 vectors
> igb0: Ethernet address: 00:1e:67:3a:d5:40
> igb0: Bound queue 0 to cpu 0
> ... now... I have this machine (right now) on the local lan with my
> windows 7 workstation and putty sees the ssh connection as dropped
> often.  I say often --- in that it can happen in a minute or two... it
> often seems to happen when there is active output going to the window
> (like a download counter running), but I also say "often" in that...
> it seems slightly random... but it _is_ incessant... as in very
> "often."

Are you using pf ? Also, did you confirm it is the igb nic and not
something more general ? e.g. if you put in a different nic, does the
problem go away ?

If you are using pf, lets see the rules.


Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike at sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada   http://www.tancsa.com/

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