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Re: gigE negotiation failure with wm0

On Tue, Sep 09, 2008 at 11:44:31AM -0400, Steven M. Bellovin wrote:
> On my laptop (Thinkpad T61 running amd64-current), if I connect it to a
> NETGEAR GS608 Gigabit switch, it speaks properly at 1000M bps.  If,
> however, I connect it to a NETGEAR GS108 ProSafe switch, it can only
> negotiate 10M bps, though it will talk at 100M bps if I configure it
> manually.  Power-cycling the switch doesn't help, nor do switching
> cables or ports.  Ubuntu 8.04 speaks GigE just fine on the exact same
> hardware, so I suspect a driver issue.
> Here are the wm0 and phy lines from dmesg:
> wm0 at pci0 dev 25 function 0: Intel i82801H (M_AMT) LAN Controller,
> rev. 3 wm0: interrupting at ioapic0 pin 20 (irq 11)
> wm0: PCI-Express bus
> wm0: FLASH
> wm0: Ethernet address 00:1e:37:18:93:c5
> igphy0 at wm0 phy 1: i82566 10/100/1000 media interface, rev. 0
> igphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT,
> 1000baseT-FDX, auto


Christoph Egger mentioned this patch to me, yesterday,

I have not looked into it, so I don't know if it may help your problem
or not.


David Young             OJC Technologies      Urbana, IL * (217) 278-3933 ext 24

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