You have been subscribed to a public bug by diii (d-iii):
I've had repeated trouble with ath9k causing my system to lock up. It's
a macbook, late 2006 model, running 8.10.
lspci -v shows the following info:
02:00.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network
Adapter (rev 01)
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at 90100000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [40] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit- Queue=0/0
Enable-
Capabilities: [60] Express Legacy Endpoint, MSI 00
Capabilities: [90] MSI-X: Enable- Mask- TabSize=1
Capabilities: [100] Advanced Error Reporting <?>
Capabilities: [140] Virtual Channel <?>
Kernel driver in use: ath9k
Kernel modules: ath9k
Kernel:
Linux uviol 2.6.27-7-generic #1 SMP Fri Oct 24 06:40:41 UTC 2008 x86_64
GNU/Linux
Symptoms are the wireless network fails to respond and I am unable to
reconnect. I get repeated popups asking for WPA2 password, and lots of
messages like this in the log:
[72782.981155] ath9k_config: Unable to set channel
[72783.337281] ath_set_channel: unable to reset channel 60 (5300Mhz) flags 0x103
42 hal status 4294967277
[72783.337369] ath9k_config: Unable to set channel
[72783.693048] ath_set_channel: unable to reset channel 64 (5320Mhz) flags 0x103
42 hal status 4294967277
[72783.693164] ath9k_config: Unable to set channel
[72784.049049] ath_set_channel: unable to reset channel 149 (5745Mhz) flags 0x30
142 hal status 4294967277
[72784.049173] ath9k_config: Unable to set channel
[72784.336993] ath_set_channel: unable to reset channel 153 (5765Mhz) flags 0x50
142 hal status 4294967277
First time this happens, I can clear the problem by unloading and reloading the
ath9k module. It will occur again shortly afterward. Second or third time
around the ath9k module will unload and reload fine, but following this any
process that tries accessing the device will hang (NetworkManager, 'ifconfig',
etc.) and the system becomes more and more unresponsive until I have to power
off.
This bug is a showstopper for me and rebooting twice daily has shot my
workflow to bits, so I'm happy to help debug this in any way I can.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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ath9k causes system lockup
https://bugs.launchpad.net/bugs/289356
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