Subject: e1000: eth2: e1000_clean_tx_irq: Detected Tx Unit Hang

From: Jesper Krogh <[email-masked]>
Date: Sun, 05 Apr 2009 10:11:42 +0200

I have a 2.6.27.20 system in production, the e1000 drivers seem pretty 
"noisy" allthough everything appears to work excellent.

dmesg here: http://krogh.cc/~jesper/dmesg-ko-2.6.27.20.txt

[476197.380486] e1000: eth3: e1000_clean_tx_irq: Detected Tx Unit Hang
[476197.380488]   Tx Queue             <0>
[476197.380489]   TDH                  <c>
[476197.380490]   TDT                  <63>
[476197.380490]   next_to_use          <63>
[476197.380491]   next_to_clean        <b>
[476197.380491] buffer_info[next_to_clean]
[476197.380492]   time_stamp           <10717579a>
[476197.380492]   next_to_watch        <f>
[476197.380493]   jiffies              <107175a3e>
[476197.380494]   next_to_watch.status <0>

The system has been up for 14 days but the dmesg-buffer has allready 
overflown with these.

Configuratoin is a 4 x 1GbitE bond all with Intel NICs

06:01.0 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet 
Controller (Copper) (rev 03)
06:01.1 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet 
Controller (Copper) (rev 03)
06:02.0 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet 
Controller (Copper) (rev 03)
06:02.1 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet 
Controller (Copper) (rev 03)

-- 
Jesper