Hi,
recently I installed RHEL 5 on a brand new server. Doing a yum update, I
noticed some networkproblems - network slowdown and stopping at all.
Doing some googling on the log message told me to do a "ethtool -K eth0
tso off" but this didn't solve the troblem. After one ... two ...
minutes the problem is still there.
The kernel is 2.6.18-8.1.1.el5.
Any ideas what to check or any hints? What information may I provide?
The logmessage is:
Apr 2 21:12:52 server10504 kernel: e1000: eth0: e1000_clean_tx_irq:
Detected Tx Unit Hang
Apr 2 21:12:52 server10504 kernel: Tx Queue <0>
Apr 2 21:12:52 server10504 kernel: TDH <ca>
Apr 2 21:12:52 server10504 kernel: TDT <cb>
Apr 2 21:12:52 server10504 kernel: next_to_use <cb>
Apr 2 21:12:52 server10504 kernel: next_to_clean <ca>
Apr 2 21:12:52 server10504 kernel: buffer_info[next_to_clean]
Apr 2 21:12:52 server10504 kernel: time_stamp <115faf5>
Apr 2 21:12:52 server10504 kernel: next_to_watch <ca>
Apr 2 21:12:52 server10504 kernel: jiffies <115ff5d>
Apr 2 21:12:52 server10504 kernel: next_to_watch.status <0>
Apr 2 21:12:54 server10504 kernel: e1000: eth0: e1000_clean_tx_irq:
Detected Tx Unit Hang
Apr 2 21:12:54 server10504 kernel: Tx Queue <0>
Apr 2 21:12:54 server10504 kernel: TDH <ca>
Apr 2 21:12:54 server10504 kernel: TDT <cb>
Apr 2 21:12:54 server10504 kernel: next_to_use <cb>
Apr 2 21:12:54 server10504 kernel: next_to_clean <ca>
Apr 2 21:12:54 server10504 kernel: buffer_info[next_to_clean]
Apr 2 21:12:54 server10504 kernel: time_stamp <115faf5>
Apr 2 21:12:54 server10504 kernel: next_to_watch <ca>
Apr 2 21:12:54 server10504 kernel: jiffies <116072d>
Apr 2 21:12:54 server10504 kernel: next_to_watch.status <0>
Apr 2 21:12:56 server10504 kernel: e1000: eth0: e1000_clean_tx_irq:
Detected Tx Unit Hang
Apr 2 21:12:56 server10504 kernel: Tx Queue <0>
Apr 2 21:12:56 server10504 kernel: TDH <ca>
Apr 2 21:12:56 server10504 kernel: TDT <cb>
Apr 2 21:12:56 server10504 kernel: next_to_use <cb>
Apr 2 21:12:56 server10504 kernel: next_to_clean <ca>
Apr 2 21:12:56 server10504 kernel: buffer_info[next_to_clean]
Apr 2 21:12:56 server10504 kernel: time_stamp <115faf5>
Apr 2 21:12:56 server10504 kernel: next_to_watch <ca>
Apr 2 21:12:56 server10504 kernel: jiffies <1160efd>
Apr 2 21:12:56 server10504 kernel: next_to_watch.status <0>
Apr 2 21:12:57 server10504 kernel: NETDEV WATCHDOG: eth0: transmit
timed out
Apr 2 21:13:00 server10504 kernel: e1000: eth0: e1000_watchdog: NIC
Link is Up 1000 Mbps Full Duplex
--
Götz Reinicke
IT Koordinator
Tel. +49 7141 969 420
Fax +49 7141 969 55 420
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Hans-Joachim Steck
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