[Solved] Ath9k kernel panic

hokasch · 2010-04-21 23:16:45

Just realize I linked directly to the source above; the page is here compat-wireless.

oldmerovingian · 2010-04-22 02:58:23

hokasch wrote:

Just realize I linked directly to the source above; the page is here compat-wireless.

Has this solved your problem completely?

empthollow · 2010-04-22 03:53:39

If you haven't solved your problem you may want to note what kind of 802.11 network the lockups are happing on. i.e. b/g/n/mixed.

oldmerovingian · 2010-04-22 03:59:08

empthollow wrote:

If you haven't solved your problem you may want to note what kind of 802.11 network the lockups are happing on. i.e. b/g/n/mixed.

This is a newbie question, but first, how do I find that out?

Secondly, is there a way to throttle the router to a lower speed?

hokasch · 2010-04-22 12:10:30

To see and adjust this settings, you will need access to the router. See the documentation that came with it on how to configure. I remember trying to set the wireless card's bitrate with iwconfig, but it didn't really work.

Has this solved your problem completely?

Have a look here, what is your experience?

kokoko3k · 2010-04-22 15:44:17

Today i noticed a segfault in dmesg, i inspected it because an mp3 i was playing over sshfs stopped.
The driver, somehow, has been reloaded by the kernel, and wicd instantly get connected again, but no kernel panics at all.
(asus 1005ha, same wireless chipset)

oldmerovingian · 2010-04-22 16:09:10

I tried compat-wireless to no avail. I had a kernel panic within hours. My router was mixed, so I switched it down to n only. Going to give this a shot.

EDIT: Switching to n did not work. Trying g only now.

Last edited by oldmerovingian (2010-04-22 16:33:31)

shamanstk · 2010-04-22 18:02:41

My home network is g only and its fine. I believe my schools network is a mix of all of 802.11 standards. It appears that ath9k has n issues.
http://bbs.archlinux.org/viewtopic.php?id=91169

oldmerovingian · 2010-04-22 18:54:54

shamanstk wrote:

My home network is g only and its fine. I believe my schools network is a mix of all of 802.11 standards. It appears that ath9k has n issues.
http://bbs.archlinux.org/viewtopic.php?id=91169

Hmm...so that very well may be causing the kernel panics. After setting my home network to g only it has not had a panic.

I need to keep testing to be sure, but at least we have a good idea of what the problem is.

Now, since we cannot control other networks, is it possible to configure our system to not try to use n?

shamanstk · 2010-04-23 18:47:06

http://osdir.com/ml/linux-wireless/2009 … 00462.html so it definitely is the 802.11n issue. So problem located. I have not had any luck disabling the 802.11 on the client side.

gaunt · 2010-04-23 21:46:18

I appear to have the same issues... n router sitting 25' from me, and if I connect I get a panic within the hour. Until a fix comes, at least I know why my machine went for routine months of uptime on Ethernet.

Ultraman · 2010-04-23 23:23:00

Wifi-N... that would explain why I can only remember lockups at home. Dont think I ever got them anywhere else, my GFs place has G, university has G and a friend I took it to also has G. Put my router in Wifi-G only mode instead of G/N mix now.
Now i'll see if it still locks up.

oldmerovingian · 2010-04-23 23:41:01

Ultraman wrote:

Wifi-N... that would explain why I can only remember lockups at home. Dont think I ever got them anywhere else, my GFs place has G, university has G and a friend I took it to also has G. Put my router in Wifi-G only mode instead of G/N mix now.
Now i'll see if it still locks up.

It shouldn't. Mine has been on for days now since I switched my router to g only.

We should probably file a bug report to get this fixed.

Ultraman · 2010-04-24 01:05:46

So far so good here indeed. And now NetworkManager is able to show information about the connection speed.
I'm interested what tomorrow will bring, i'll work on my laptop instead of my desktop so I can test the wireless.

hokasch · 2010-04-24 01:20:34

There is probably more to it, my card (AR9280) runs fine in mixed/pure n-mode with compat-wireless (well, it drops the connection from time to time, but not the kernel anymore...). Maybe you can narrow it down to a specific model?

oldmerovingian · 2010-04-24 17:16:17

hokasch wrote:

There is probably more to it, my card (AR9280) runs fine in mixed/pure n-mode with compat-wireless (well, it drops the connection from time to time, but not the kernel anymore...). Maybe you can narrow it down to a specific model?

I am using an AR928X and compat wireless didnt help me any.

Anyone else?

hokasch · 2010-04-24 17:18:41

You can see the exact model in dmesg after the module is loaded - assuming the driver reports it correctly.

Ultraman · 2010-04-24 17:53:29

No compat-wireless here, and I know my card is a AR9285, lspci confirms that as well.
Spend the day on Wifi G, no crashes today.

Last edited by Ultraman (2010-04-24 17:55:57)

oldmerovingian · 2010-04-24 18:15:55

hokasch wrote:

You can see the exact model in dmesg after the module is loaded - assuming the driver reports it correctly.

After looking through dmesg, I discovered my wireless card is AR9280 as well. Maybe I will try removing compat-wireless and trying again. Thus far I am fine with just g though.

shamanstk · 2010-04-26 02:06:32

AR9285 according to hwinfo.

shamanstk · 2010-04-28 19:06:05

The kernel update fixed the problem for me. 5 hours on an N network with no lock up. All this diagnosis was just a practice run I suppose lol

oldmerovingian · 2010-04-28 22:41:21

shamanstk wrote:

The kernel update fixed the problem for me. 5 hours on an N network with no lock up. All this diagnosis was just a practice run I suppose lol

I am going to go home and put my network on N and confirm this. Thanks for keeping us updated!

EDIT: Computer has been on for about 12 hours and no panic. Seems that the issue has been fixed here as well!

Last edited by oldmerovingian (2010-04-29 14:48:40)

kokoko3k · 2010-05-14 08:24:51

@oldmerovingian, shamanstk
Since i've no 'n' networks to try out and i'm using a custom kernel, can you tell me what version fixed it?
Thanks.

oldmerovingian · 2010-05-15 01:19:35

kokoko3k wrote:

@oldmerovingian, shamanstk
Since i've no 'n' networks to try out and i'm using a custom kernel, can you tell me what version fixed it?
Thanks.

I believe it was the last kernel upgrade. 2.6.33-2?

Arch Linux

#26 2010-04-21 23:16:45

Re: [Solved] Ath9k kernel panic

#27 2010-04-22 02:58:23

Re: [Solved] Ath9k kernel panic

#28 2010-04-22 03:53:39

Re: [Solved] Ath9k kernel panic

#29 2010-04-22 03:59:08

Re: [Solved] Ath9k kernel panic

#30 2010-04-22 12:10:30

Re: [Solved] Ath9k kernel panic

#31 2010-04-22 15:44:17

Re: [Solved] Ath9k kernel panic

#32 2010-04-22 16:09:10

Re: [Solved] Ath9k kernel panic

#33 2010-04-22 18:02:41

Re: [Solved] Ath9k kernel panic

#34 2010-04-22 18:54:54

Re: [Solved] Ath9k kernel panic

#35 2010-04-23 18:47:06

Re: [Solved] Ath9k kernel panic

#36 2010-04-23 21:46:18

Re: [Solved] Ath9k kernel panic

#37 2010-04-23 23:23:00

Re: [Solved] Ath9k kernel panic

#38 2010-04-23 23:41:01

Re: [Solved] Ath9k kernel panic

#39 2010-04-24 01:05:46

Re: [Solved] Ath9k kernel panic

#40 2010-04-24 01:20:34

Re: [Solved] Ath9k kernel panic

#41 2010-04-24 17:16:17

Re: [Solved] Ath9k kernel panic

#42 2010-04-24 17:18:41

Re: [Solved] Ath9k kernel panic

#43 2010-04-24 17:53:29

Re: [Solved] Ath9k kernel panic

#44 2010-04-24 18:15:55

Re: [Solved] Ath9k kernel panic

#45 2010-04-26 02:06:32

Re: [Solved] Ath9k kernel panic

#46 2010-04-28 19:06:05

Re: [Solved] Ath9k kernel panic

#47 2010-04-28 22:41:21

Re: [Solved] Ath9k kernel panic

#48 2010-05-14 08:24:51

Re: [Solved] Ath9k kernel panic

#49 2010-05-15 01:19:35

Re: [Solved] Ath9k kernel panic

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