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Re: wm(4) and IPv6

On Fri, Mar 07, 2008 at 09:04:18PM +0100, Vincent wrote:
> Hi folks,
> I am experiencing strange problems with Ipv6 and the wm(4) driver: when, 
> after a delay of inactivity let's say, about one minute or so, I try to 
> ping my router, the first three packets are lost, the forth returns with an 
> exceedingly long round trip time, and the following gets normal:
> Once the level 3 link is up again, everything works smoothly, until it is 
> paused and the same phenomenon shows up again.
> This seems not to be a router default, since I have a machine at the same 
> address (but ...::3%sip0), with -current also, that works like a charm. 
> Also, nothing like this happens when I use IPv4 instead.
> Any idea or same behavior?

Yeah, I seem to have that sometimes with a Pro/1000 PT Desktop card.

Also, recent changes to the interrupt moderation timers hurt
performance of this card for me, see a recent post or two
to tech-net@.

> Oh, by the way, I have this config on the faulty machine:
> wm0 at pci0 dev 25 function 0: 82801I LAN Controller, rev. 2
> wm0: interrupting at ioapic0 pin 20 (irq 10)
> wm0: PCI-Express bus
> wm0: FLASH
> wm0: Ethernet address 00:1d:09:80:94:14
> inphy0 at wm0 phy 1: i82562EM 10/100 media interface, rev. 0
> Note that also Gigabit Ethernet capable, I have only a 100 Megabit phy. 
> Thanks Dell. Could it pose problems?

It shouldn't, but I'm betting it's not been tested much yet.

        Jonathan Kollasch

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