Linux

  1. Bug #76489
  2. Comment #0

Comment 0 for bug 76489

Revision history for this message
klaas.hoelscher (klaas-hoelscher) wrote : network device, module r8169, fails after some minutes

ubuntu feisty fawn herd-1, kernel 2.6.20-2-generic, using SMP. The network interface is an onboard device of the asrock conroe945g-dvi mainboard.
-------------
lspci -v:
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
        Subsystem: ASRock Incorporation Unknown device 8168
        Flags: bus master, fast devsel, latency 0, IRQ 17
        I/O ports at e800 [size=256]
        Memory at febff000 (64-bit, non-prefetchable) [size=4K]
        Expansion ROM at febc0000 [disabled] [size=128K]
        Capabilities: [40] Power Management version 2
        Capabilities: [48] Vital Product Data
        Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ Queue=0/1 Enable-
        Capabilities: [60] Express Endpoint IRQ 0
        Capabilities: [84] Vendor Specific Information
--------------
using the module r8169 (
version: 2.2LK
vermagic: 2.6.20-2-generic SMP mod_unload 586 )

after some minutes of using the pc as usual (light browsing etc) the message "NETDEV WATCHDOG: eth0: transmit timed out" appears in the system log and the network connection fails.
ifconfig to activate/deactivate the device does not help. removing the module is not possible as it is in use. reboot helps :)

Solution as suggested by (german!) http://www.hosteurope.de/faq/index.php?cpid=12346 is to turn off TSO ("TCP Segmentation Offload") with "sudo ethtool -K eth0 tso off".