netdev - Re: iwlagn regression in v3.1.5

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Date:	Sun, 11 Dec 2011 17:35:37 -0800
From:	wwguy <wey-yi.w.guy@...el.com>
To:	Andrej Gelenberg <andrej.gelenberg@....edu>
Cc:	Udo Steinberg <udo@...ervisor.org>,
	Intel Linux Wireless <ilw@...ux.intel.com>,
	"John W. Linville" <linville@...driver.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: iwlagn regression in v3.1.5

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
> >>>
> >
> >
> 


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