Re: iwlagn regression in v3.1.5

Andrej Gelenberg
2011-12-11T19:20:20Z

Hi,

some info to the AP i use:

Technaxx Router-150 Wifi-N based on ranik soc

$ iw dev wlan0 station dump
Station xx:xx..xx:xx (on wlan0)
inactive time: 6603 ms
rx bytes: 377786468
rx packets: 443535
tx bytes: 15677515
tx packets: 155009
tx retries: 2723757
tx failed: 51495
signal: -72 dBm
signal avg: -71 dBm
tx bitrate: 135.0 MBit/s MCS 6 40Mhz short GI
authorized: yes
authenticated: yes
preamble: long
WMM/WME: yes
MFP: no

$ iwconfig wlan0
wlan0 IEEE 802.11abgn ESSID:"xxx"
Mode:Managed Frequency:2.437 GHz Access Point: xx:xx..xx:xx
Bit Rate=121.5 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=42/70 Signal level=-68 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:51520 Invalid misc:3567 Missed beacon:0

some dmesg output:

[ 903.748514] wlan0: authenticate with xx:xx..xx:xx (try 1)
[ 903.750991] wlan0: authenticated
[ 903.753357] wlan0: associate with xx:xx..xx:xx (try 1)
[ 903.759482] wlan0: RX AssocResp from xx:xx..xx:xx (capab=0xc31
status=0 aid=1)
[ 903.759487] wlan0: associated

$ iwlist wlan0 scan

Cell 06 - Address: xx:xx..xx:xx
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=45/70 Signal level=-65 dBm
Encryption key:on
ESSID:"xxx"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000005666eac197
Extra: Last beacon: 33ms ago
IE: Unknown: 000873757065726B7568
IE: Unknown: 010882848B961224486C
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 32040C183060
IE: Unknown:
2D1A7E1117FF000000010000000000000000000000000C0000000000
IE: Unknown:
3D1606070500000000000000000000000000000000000000
IE: Unknown: 3E0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown:
DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: 0B05020012127A
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: Unknown: DD07000C4307000000
IE: Unknown: 0706465220010D10
IE: Unknown:
DD1E00904C337E1117FF000000010000000000000000000000000C0000000000
IE: Unknown:
DD1A00904C3406070500000000000000000000000000000000000000

Regards,
Andrej Gelenberg

On 12/11/2011 07:23 PM, wwguy wrote:
> On Sun, 2011-12-11 at 08:58 -0800, Andrej Gelenberg wrote:
>> Hi,
>>
>> this is pretty mean regression for the stable kernel. You may the fix
>> only for cards, which need it and not for all of them.
>
> Could you elaborate more on the failure case and setup. this patch is to
> address HT40 related problem which cause the iwlwifi firmware crash.
>
> Thanks
> Wey
>>>
>
>