NIC kernel driver messages polluting the console display

Mahmood saghaei mahmood.saghaei at gmail.com
Tue Jul 20 20:27:01 PDT 2010


I have this strange and very disturbing problem in my lfs which appears
after connecting a LAN cable to my netbook ASUS Eee PC. The eth0 interface
works fine but there are lots of kernel output to the display every few
minutes. The output shows that the interface goes through up and down
cycles. These outputs are the same as the logs in kernel.log and sys.log: a
sample is:
Jul 21 06:29:23 lfs-first kernel: [   69.153198] ATL1E 0000:03:00.0: eth0:
NIC Link is Up <100 Mbps Full Duplex>
Jul 21 06:29:41 lfs-first kernel: [   87.282542] ATL1E 0000:03:00.0: eth0:
NIC Link is Down
Jul 21 06:29:43 lfs-first kernel: [   88.870392] ATL1E 0000:03:00.0: eth0:
NIC Link is Up <100 Mbps Full Duplex>
Jul 21 06:29:46 lfs-first kernel: [   92.212283] ATL1E 0000:03:00.0: eth0:
NIC Link is Down
Jul 21 06:29:48 lfs-first kernel: [   93.798654] ATL1E 0000:03:00.0: eth0:
NIC Link is Up <100 Mbps Full Duplex>
Jul 21 06:29:51 lfs-first kernel: [   97.141927] ATL1E 0000:03:00.0: eth0:
NIC Link is Down
Jul 21 06:29:53 lfs-first kernel: [   98.724880] ATL1E 0000:03:00.0: eth0:
NIC Link is Up <100 Mbps Full Duplex>
Jul 21 06:30:01 lfs-first kernel: [  107.004071] ATL1E 0000:03:00.0: eth0:
NIC Link is Down
Jul 21 06:30:02 lfs-first kernel: [  108.577701] ATL1E 0000:03:00.0: eth0:
NIC Link is Up <100 Mbps Full Duplex>

I have to press Ctrl-L every now and then to clear these messages, and in
some apps like *links* it can not be cleared. Most of the times I unplug the
LAN cable to get rid of these annoying messages.

My NIC is:
Atheros Communications Atheros AR8121/AR8113/AR8114 PCI-E Ethernet
Controller
The driver *atl1e* compiled into the kernel.
and I am using dhclient

Anyone can help me?
-- 
Mahmoud Saghaei, M.D. (http://www.saghaei.net/)
Editor-in-Chief,
Journal of Research in Medical Sciences
(http://journals.mui.ac.ir/jrms)
Research Department.
and
Professor,
Department of Anesthesia,
Isfahan University of Medical Sciences (http://www.mui.ac.ir),
Isfahan,
Iran.
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