Bug#622971: Ath9K wireless quite unreliable since upgrade to 2.6.38
Confirming on the following system:
X201i, Modified BIOS, taped pin 20, WWLAN mini PCI slot (the "spare" one)
03:00.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (rev 01) [Lenovo-branded]
Linux 3.0.0-2-amd64 / Updated Debian Sid
Happens every few hours with a non-predictable cause while connected to a G-only, WEP, Tomato ver. 1.28 Linksys WRT54GL router. The 'iommu=soft' boot parameter doesn't help. Works perfectly otherwise and rmmod/modprobe usually solves things.
The log looks like this:
...
[ 2903.214280] ath: Could not kill baseband RX
[ 2903.342553] ath: Unable to reset channel (2472 MHz), reset status -5
[ 2903.342573] ath: Unable to set channel
[ 2903.470172] ath: Could not kill baseband RX
[ 2903.596806] ath: Unable to reset channel (2484 MHz), reset status -5
[ 2903.596828] ath: Unable to set channel
[ 2903.725266] ath: Unable to reset channel (5180 MHz), reset status -5
[ 2903.725291] ath: Unable to set channel
[ 2903.851668] ath: Could not kill baseband RX
...
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