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SubjectRE: [2.6.x] e1000: NETDEV WATCHDOG: eth0: transmit timed out
> since we have upgraded cabling on our network and transfer 
> speeds increased a little bit, we are experiencing very often
> situations where the Intel PRO/1000 nics just stop responding
> and network dies for a while. Local console works, there are
> no more error messages other than (when the eth0 comes to a
> life again):
> NETDEV WATCHDOG: eth0: transmit timed out
> e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex

Petr, I need you to try something. Get ethtool 1.8
( and turn off TSO:

# ethtool -K eth0 tso off

If you now longer see NETDEV WATCHDOG's, I have a next step. More on
that later.

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