X4100 gigabit network interface drops under load

From: Mike Forey (mike.forey@googlemail.com)
Date: Sat Jul 28 2007 - 03:27:40 EDT

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Hi

We have a handful x4100 systems running at 1000/full

We have seen that the network interface sometimes drops under load

You just see the interface come back up in the messages file:

Jul 27 15:25:57 fnet-fred1 e1000g: [ID 801593 kern.notice] NOTICE:
pci8086,1011 - e1000g[0] : Adapter 1000Mbps full duplex copper link is up.

We have set the switch port to Auto-negotiate and have changed the
e1000g.conf thus: (autoneg and advertise 1000/full):

ForceSpeedDuplex=7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7;
AutoNegAdvertised=32;

The system has a recent patch cluster

I have just applied patch 125121-03 in the hope that this mght help.

 We never see this problem on systems running at 100/full. Has anyone seen
similar behaviour to this?

Thanks,
Mike.
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