Public bug reported:
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".
** Affects: Ubuntu
Importance: Undecided
Status: Unconfirmed
--
network device, module r8169, fails after some minutes
https://launchpad.net/bugs/76489
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