Re: iwlagn regression in v3.1.5

wwguy
2011-12-12T01:42:24Z

Hi Andjej,

Could you please load the module with debug=0x1082 and send me the log.

$sudo modprobe iwlagn debug=0x1082

Thanks
Wey

On Sun, 2011-12-11 at 11:20 -0800, Andrej Gelenberg wrote:
> 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
> >>>
> >
> >
>