My network drops connection with the message "e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang" with Intel 82545/82546 Gigabit Ethernet Controller

Solution Verified - Updated -

Issue

  • The server drops network connections with the following messages in /var/log/messsages

    kernel: e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang 
kernel: Tx Queue <0> 
kernel: TDH <7a> 
kernel: TDT <c5> 
kernel: next_to_use <c5> 
kernel: next_to_clean <75> 
kernel: buffer_info[next_to_clean] 
kernel: time_stamp <102ab452b> 
kernel: next_to_watch <7c> 
kernel: jiffies <102ab52ea> 
kernel: next_to_watch.status <0> 
kernel: e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang 
kernel: Tx Queue <0> 
kernel: TDH <7a> 
kernel: TDT <c5> 
kernel: next_to_use <c5> 
kernel: next_to_clean <75> 
kernel: buffer_info[next_to_clean] 
kernel: time_stamp <102ab452b> 
kernel: next_to_watch <7c> 
kernel: jiffies <102ab5aba> 
kernel: next_to_watch.status <0> 
kernel: NETDEV WATCHDOG: eth0: transmit timed out 
kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Up 1000 Mbps Full Duplex, 
Flow Control: RX

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Intel 82545/82546EB Gigabit Ethernet Controller

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.