[ath9k-devel] ath9k atomic failure (i am so cool to use words i don't understand)

[ath9k-devel] ath9k atomic failure (i am so cool to use words i don't understand)

[Dmitri Seletski]

Hello boys and girls.
Tried yesterdays package provided by Luis.


in order to catch kernel error message i have written little script that 
is basically loop that writes dmesg info onto my flash memory card.
several times tried it - not one time successful...

script is below by the way.


////////////////////////////////////////////////////////////////////////////////////////////////////////

while [ "1" != "0" ]

do

savepath=/media/disk/fcron/dmesg$(date +%H%M+%S).txt

echo $savepath

dmesg >> $savepath

sync

done


///////////////////////////////////////////////////////////////////////////////////////////////////////

it takes roughly  0.6 second to update file on flash drive.

Bad news, out of 3 times - no error message has being caught in dmesg...
last dmesg output is attached to this email. in any of cases raising 
elephants didn't help.

What i have noticed - if i run two "ping -A ROUTER" in parallel, than 
condition comes earlier. It seems to me, that using "several streams" at 
the same time, be it tcp traffic or icm - computer hangs quicker.
Let me know if you want me to try anything else.

I am trying to be good, so Santa will spare my sinful soul and do me a 
Christmas present :-)

Dmitri
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[ath9k-devel] ath9k atomic failure (i am so cool to use words i don't understand)

[Luis R. Rodriguez]

On Thu, Dec 18, 2008 at 04:01:00PM -0800, Dmitri Seletski wrote:
> Hello boys and girls.
> Tried yesterdays package provided by Luis.
> 
> 
> in order to catch kernel error message i have written little script that
> is basically loop that writes dmesg info onto my flash memory card.
> several times tried it - not one time successful...
> 
> script is below by the way.
> 
> 
> ////////////////////////////////////////////////////////////////////////////////////////////////////////
> 
> while [ "1" != "0" ]
> 
> do
> 
> savepath=/media/disk/fcron/dmesg$(date +%H%M+%S).txt
> 
> echo $savepath
> 
> dmesg >> $savepath

You shouldn' tdo this in a loop, if anything first rmmod ath9k, then dump the first
dmesg -c to /dev/null/; then modprobe ath9k and start appending to the file using
dmesg -c 

> sync
> 
> done
> 
> 
> ///////////////////////////////////////////////////////////////////////////////////////////////////////
> 
> it takes roughly  0.6 second to update file on flash drive.
> 
> Bad news, out of 3 times - no error message has being caught in dmesg...
> last dmesg output is attached to this email. in any of cases raising
> elephants didn't help.
> 
> What i have noticed - if i run two "ping -A ROUTER" in parallel, than
> condition comes earlier. It seems to me, that using "several streams" at
> the same time, be it tcp traffic or icm - computer hangs quicker.
> Let me know if you want me to try anything else.
> 
> I am trying to be good, so Santa will spare my sinful soul and do me a
> Christmas present :-)
> 
> Dmitri

> [  170.981448] ADDRCONF(NETDEV_UP): wlan0: link is not ready
> [  215.004494] wlan0: direct probe to AP 00:1e:58:b4:f6:83 try 1
> [  215.007989] wlan0 direct probe responded
> [  215.007995] wlan0: authenticate with AP 00:1e:58:b4:f6:83
> [  215.010413] wlan0: authenticated
> [  215.010418] wlan0: associate with AP 00:1e:58:b4:f6:83
> [  215.019408] wlan0: RX AssocResp from 00:1e:58:b4:f6:83 (capab=0x421 status=0 aid=1)
> [  215.019413] wlan0: associated
> [  215.028226] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready


Unfortunately as you noted this provides no help to us to help debug the issue you are
seeing. What kernel are you using? Please provide the output of:

modprobe -l mac80211
modprobe -l cfg80211
modprobe -l ath9k

Did you disable Network Manager and wpa_supplicant before starting? Are you using
encryption or no encryption? If so what encryption are you using? Is it an 11n AP? If
so do you have HT enabled? If so is it HT20 or HT40?

  Luis

[ath9k-devel] ath9k atomic failure (i am so cool to use words i don't understand)

[Dmitri Seletski]

Luis R. Rodriguez wrote:
> On Thu, Dec 18, 2008 at 04:01:00PM -0800, Dmitri Seletski wrote:
>   
>> Hello boys and girls.
>> Tried yesterdays package provided by Luis.
>>
>>
>> in order to catch kernel error message i have written little script that
>> is basically loop that writes dmesg info onto my flash memory card.
>> several times tried it - not one time successful...
>>
>> script is below by the way.
>>
>>
>> ////////////////////////////////////////////////////////////////////////////////////////////////////////
>>
>> while [ "1" != "0" ]
>>
>> do
>>
>> savepath=/media/disk/fcron/dmesg$(date +%H%M+%S).txt
>>
>> echo $savepath
>>
>> dmesg >> $savepath
>>     
>
> You shouldn' tdo this in a loop, if anything first rmmod ath9k, then dump the first
> dmesg -c to /dev/null/; then modprobe ath9k and start appending to the file using
> dmesg -c 
>
>   

How am I supposed to do it while my machine is fully hanged up? last test i did, gdm was killed, no X was running, not even caps lock was reacting to me. ctrl + alt + sysrq + R didnt help either. 


>> sync
>>
>> done
>>
>>
>> ///////////////////////////////////////////////////////////////////////////////////////////////////////
>>
>> it takes roughly  0.6 second to update file on flash drive.
>>
>> Bad news, out of 3 times - no error message has being caught in dmesg...
>> last dmesg output is attached to this email. in any of cases raising
>> elephants didn't help.
>>
>> What i have noticed - if i run two "ping -A ROUTER" in parallel, than
>> condition comes earlier. It seems to me, that using "several streams" at
>> the same time, be it tcp traffic or icm - computer hangs quicker.
>> Let me know if you want me to try anything else.
>>
>> I am trying to be good, so Santa will spare my sinful soul and do me a
>> Christmas present :-)
>>
>> Dmitri
>>     
>
>   
>> [  170.981448] ADDRCONF(NETDEV_UP): wlan0: link is not ready
>> [  215.004494] wlan0: direct probe to AP 00:1e:58:b4:f6:83 try 1
>> [  215.007989] wlan0 direct probe responded
>> [  215.007995] wlan0: authenticate with AP 00:1e:58:b4:f6:83
>> [  215.010413] wlan0: authenticated
>> [  215.010418] wlan0: associate with AP 00:1e:58:b4:f6:83
>> [  215.019408] wlan0: RX AssocResp from 00:1e:58:b4:f6:83 (capab=0x421 status=0 aid=1)
>> [  215.019413] wlan0: associated
>> [  215.028226] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
>>     
>
>
> Unfortunately as you noted this provides no help to us to help debug the issue you are
> seeing. What kernel are you using? Please provide the output of:
>
> modprobe -l mac80211
> modprobe -l cfg80211
> modprobe -l ath9k
>
> Did you disable Network Manager and wpa_supplicant before starting? Are you using
> encryption or no encryption? If so what encryption are you using? Is it an 11n AP? If
> so do you have HT enabled? If so is it HT20 or HT40?
>
>   Luis
>   
localhost dimko # modprobe -l mac80211
/lib/modules/2.6.27.7/updates/net/mac80211/mac80211.ko
localhost dimko # modprobe -l cfg80211
/lib/modules/2.6.27.7/updates/net/wireless/cfg80211.ko
localhost dimko # modprobe -l ath9k
/lib/modules/2.6.27.7/updates/drivers/net/wireless/ath9k/ath9k.ko

localhost dimko # ls -la 
/lib/modules/2.6.27.7/updates/drivers/net/wireless/ath9k/ath9k.ko
-rw-r--r-- 1 root root 314798 2008-12-17 21:55 
/lib/modules/2.6.27.7/updates/drivers/net/wireless/ath9k/ath9k.ko

No encryption or any other wireless security enabled. access point is 
used in only N mode. link quality is warring from 60-80(access point is 
in another room, below me ). Usually speeds i can notice on wireless 
interface are or 0 or 11 M a second.
Playing with any of the settings of the access point never gave any 
result really.

What else information are you seeking?

Dmitri

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