Re: [E1000-devel] e1000 : link down issues

[Auke Kok <auke-jan.h.kok@intel.com>]

castet.matthieu@free.fr wrote:
> Hi,
> 
> I got a 82566DM e1000 network controller [1] on my motherboard, and most of the
> time the link go down when doing dhcp. [2]
> 
> ifconfig eth0 up -> link become up
> dhclient eth0 -> some packet are transmited and received and the link become
> down.

I'm unsure whether we saw this problem before or not but it does sound familiar. First I 
would like to ask you to check your motherboards vendor website for a possible BIOS 
update for your motherboard. The 82566DM chipsets are rather new and we have pushed out 
NVM changes to vendors for some known issues.

> I sometimes got e1000_reset: Hardware Error.
> 
> This happen with vanilla 2.6.19 and e1000-7.3.20 drivers.
> 
> This is very anoying because I should do rmmod e1000; modprobe e1000; ifup e1000
> in loop until the link stay up. I try forcing speed, duplex and flow control, but
 > nothing solve my issue.
> 
> The device is working fine on windows.

unfortunately that doesn't say that much. I do know that we are queueing some ich8/82566 
changes for the kernel and if you're willing to try them I can provide patch to the 
kernel netdev tree to you (it was posted here 3 days ago) to try.

Cheers,

Auke


PS feel free to trim lkml from the CC to move this discussion further to e1000-devel 
list only.