[Bug 33869] NETDEV WATCHDOG: wlan0: transmit timed out

[Matteo Giordano]

Public bug reported:
https://launchpad.net/malone/bugs/33869

Affects: linux-source-2.6.15 (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
Sometimes (actually at random times, I still can't figure what is
causing this problem) my network connection drops and I get several
lines like this in my dmesg:

[4313835.782000] NETDEV WATCHDOG: wlan0: transmit timed out
[4313835.782000] drivers/usb/net/atmel/at76c503.c: wlan0: tx timeout.

This happens with breezy and dapper with two different wireless usb
adapters, one using at76c503 module and the other using zd1211.

I need to ifdown/ifup the interface to get it running again.