Recently, I get some abnormal messages about Tx unit hang, the MB what I using is X7SBU running CentOS5.2,. Is this a known issue?
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Apr 26 04:45:50 bkupfile0202a kernel: e1000: eth2: e1000_clean_tx_irq:
Detected Tx Unit Hang
Apr 26 04:45:50 bkupfile0202a kernel: next_to_watch.status <0>
Apr 20 09:37:56 bkupfile0211a kernel: e1000: eth0: e1000_clean_tx_irq:
Detected Tx Unit Hang
Apr 20 09:37:56 bkupfile0211a kernel: next_to_watch.status <0>
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Here is the solution,
http://downloadmirror.intel.com/15817/eng/README.txt
82573(V/L/E) TX Unit Hang Messages:
Several adapters with the 82573 chipset display "TX unit hang" messages during normal operation with the e1000e driver. The issue appears both with TSO enabled and disabled, and is caused by a power management function that is enabled in the EEPROM. Early releases of the chipsets to vendors had the EEPROM bit that enabled the feature. After the issue was discovered newer adapters were released with the feature disabled in the EEPROM. If you encounter the problem in an adapter, and the chipset is an 82573-based one, you can verify that your adapter needs the fix by using the tool...
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