TX Unit Hang E1000 driver

e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <fe>
TDT <21>
next_to_use <21>
next_to_clean <fb>
buffer_info[next_to_clean]
time_stamp <dd0379>
next_to_watch <1>
jiffies <dd0411>
next_to_watch.status <0>
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <fe>
TDT <21>
next_to_use <21>
next_to_clean <fb>
buffer_info[next_to_clean]
time_stamp <dd0379>
next_to_watch <1>
jiffies <dd04d9>
next_to_watch.status <0>
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <fe>
TDT <21>
next_to_use <21>
next_to_clean <fb>
buffer_info[next_to_clean]
time_stamp <dd0379>
next_to_watch <1>
jiffies <dd05a1>
next_to_watch.status <0>
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <fe>
TDT <21>
next_to_use <21>
next_to_clean <fb>
buffer_info[next_to_clean]
time_stamp <dd0379>
next_to_watch <1>
jiffies <dd0669>
next_to_watch.status <0>
NETDEV WATCHDOG: eth0: transmit timed out
e1000: eth0: e1000_watchdog_task: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <76>
TDT <80>
next_to_use <80>
next_to_clean <74>
buffer_info[next_to_clean]
time_stamp <dd0c30>
next_to_watch <76>
jiffies <dd0d0d>
next_to_watch.status <0>
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <76>
TDT <80>
next_to_use <80>
next_to_clean <74>
buffer_info[next_to_clean]
time_stamp <dd0c30>
next_to_watch <76>
jiffies <dd0dd5>
next_to_watch.status <0>
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <76>
TDT <80>
next_to_use <80>
next_to_clean <74>
buffer_info[next_to_clean]
time_stamp <dd0c30>
next_to_watch <76>
jiffies <dd0e9d>
next_to_watch.status <0>
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <76>
TDT <80>
next_to_use <80>
next_to_clean <74>
buffer_info[next_to_clean]
time_stamp <dd0c30>
next_to_watch <76>
jiffies <dd0f65>
next_to_watch.status <0>
NETDEV WATCHDOG: eth0: transmit timed out
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <76>
TDT <80>
next_to_use <80>
next_to_clean <74>
buffer_info[next_to_clean]
time_stamp <dd0c30>
next_to_watch <76>
jiffies <dd102d>
next_to_watch.status <0>
e1000: eth0: e1000_watchdog_task: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <a>
TDT <d>
next_to_use <d>
next_to_clean <8>
buffer_info[next_to_clean]
time_stamp <dd14f0>
next_to_watch <a>
jiffies <dd1609>
next_to_watch.status <0>
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <a>
TDT <d>
next_to_use <d>
next_to_clean <8>
buffer_info[next_to_clean]
time_stamp <dd14f0>
next_to_watch <a>
jiffies <dd16d1>
next_to_watch.status <0>
NETDEV WATCHDOG: eth0: transmit timed out
e1000: eth0: e1000_watchdog_task: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <a5>
TDT <df>
next_to_use <df>
next_to_clean <a3>
buffer_info[next_to_clean]
time_stamp <dd2670>
next_to_watch <a5>
jiffies <dd2739>
next_to_watch.status <0>
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <a5>
TDT <df>
next_to_use <df>
next_to_clean <a3>
buffer_info[next_to_clean]
time_stamp <dd2670>
next_to_watch <a5>
jiffies <dd2801>
next_to_watch.status <0>
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <a5>
TDT <df>
next_to_use <df>
next_to_clean <a3>
buffer_info[next_to_clean]
time_stamp <dd2670>
next_to_watch <a5>
jiffies <dd28c9>
next_to_watch.status <0>
e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Tx Queue <0>
TDH <a5>
TDT <df>
next_to_use <df>
next_to_clean <a3>
buffer_info[next_to_clean]
time_stamp <dd2670>
next_to_watch <a5>
jiffies <dd2991>
next_to_watch.status <0>
NETDEV WATCHDOG: eth0: transmit timed out


How do I resolve this? There wasn't even a great deal of traffic going on...

jiffie and WATCHDOG errors could be several reasons and without knowing more details try to disable the following and reboot. Sometimes changing the Kernel will fix this as well or it could be some issue physically.

Go to the Console and enter CTRL + ALT + T then Boot options then select Boot parameters and select all of the 3 options then save and reboot.

If you need more understanding of what ACPI and APM Google is a good source.

Some message boards say that disabling TCO is a potential fix - but there is no way to do that in any of interfaces.

You can try to change the Driver settings in the Console Tools for the NIC your using.

Go to Console and enter CTRL + ALT + T then select Modify Driver and choose the NIC that you want to modify.

I did research on the net and found this link below concerning the "NETDEV WATCHDOG" messages w/ the a specific Intel chipset but don't know what you have. I have supplied a link for your research and testing.

http://www.intel.com/support/network/sb/cs-009209.htm

Also Googling the power option that I mentioned previously can prevent those errors did you test after making the changes to the power settings?