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SubjectRe: iwlagn is getting very shaky
Hi Wey,

so I am now at the university, and it seems your last patch
did wonder. Here a log after waking up from suspend at university...

[17394.694774] wlan0: associate with 00:24:c4:ab:bd:ef (try 1)
[17394.892077] wlan0: associate with 00:24:c4:ab:bd:ef (try 2)
[17394.896190] wlan0: RX AssocResp from 00:24:c4:ab:bd:ef (capab=0x1 status=0 aid=2)
[17394.896199] wlan0: associated
[17394.974620] iwlagn 0000:06:00.0: Encounter TX_STATUS_FAIL_PASSIVE_NO_RX, am I on 5.2G band? (2)
[17394.976930] iwlagn 0000:06:00.0: Encounter TX_STATUS_FAIL_PASSIVE_NO_RX, am I on 5.2G band? (2)
[17409.608674] iwlagn 0000:06:00.0: Tx aggregation enabled on ra = 00:24:c4:ab:bd:ef tid = 0
[17409.616748] wlan0: direct probe to 00:24:c4:ab:bd:e0 (try 1/3)
[17409.816093] wlan0: direct probe to 00:24:c4:ab:bd:e0 (try 2/3)
[17410.016083] wlan0: direct probe to 00:24:c4:ab:bd:e0 (try 3/3)
[17410.216086] wlan0: direct probe to 00:24:c4:ab:bd:e0 timed out
[17419.285141] iwlagn 0000:06:00.0: Encounter TX_STATUS_FAIL_PASSIVE_NO_RX, am I on 5.2G band? (0)
[17419.285315] iwlagn 0000:06:00.0: Encounter TX_STATUS_FAIL_PASSIVE_NO_RX, am I on 5.2G band? (0)
[17419.286583] wlan0: deauthenticating from 00:24:c4:ab:bd:ef by local choice (reason=2)
[17419.300296] cfg80211: Calling CRDA for country: JP
[17419.309278] wlan0: authenticate with 00:24:c4:ab:bd:ef (try 1)
[17419.310105] wlan0: authenticated
[17419.317900] wlan0: associate with 00:24:c4:ab:bd:ef (try 1)
[17419.319837] wlan0: RX ReassocResp from 00:24:c4:ab:bd:ef (capab=0x1 status=0 aid=2)
[17419.319840] wlan0: associated
[17422.384922] iwlagn 0000:06:00.0: Tx aggregation enabled on ra = 00:24:c4:ab:bd:ef tid = 0
[17509.576705] wlan0: direct probe to 00:24:c4:ab:bd:e0 (try 1/3)
[17509.776098] wlan0: direct probe to 00:24:c4:ab:bd:e0 (try 2/3)
[17509.976086] wlan0: direct probe to 00:24:c4:ab:bd:e0 (try 3/3)
[17509.980861] wlan0: direct probe responded
[17510.016116] wlan0: authenticate with 00:24:c4:ab:bd:e0 (try 1)
[17510.018753] wlan0: authenticated
[17510.042702] wlan0: associate with 00:24:c4:ab:bd:e0 (try 1)
[17510.050541] wlan0: RX ReassocResp from 00:24:c4:ab:bd:e0 (capab=0x421 status=0 aid=1)
[17510.050551] wlan0: associated
[17589.724188] iwlagn 0000:06:00.0: Tx aggregation enabled on ra = 00:24:c4:ab:bd:e0 tid = 0
[17590.839852] iwlagn 0000:06:00.0: Tx aggregation enabled on ra = 00:24:c4:ab:bd:e0 tid = 0

but the connection is up and working.

On Di, 18 Okt 2011, Guy, Wey-Yi wrote:
> Could you please let me know the brand/model of the AP which having
> problem. Also the configuration of your NIC also help.

THe AP is a big Cisco one, more I cannot see, with 3 antenna.

For the NIC, what do you want to know:
wlan0 IEEE 802.11abgn ESSID:"XXXXXXXXXX"
Mode:Managed Frequency:2.412 GHz Access Point: 00:24:C4:AB:BD:E0
Bit Rate=72.2 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=51/70 Signal level=-59 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:685 Invalid misc:59 Missed beacon:0

The last line looks interesting, excessive retires: 685, INvalid misc: 59


Note that the "Tx excessive retries" increase steaadily and radically,
downloading updates with aptitude I see afterwards:
Tx excessive retries:17922

The "Invalid misc" also increase, but slowly.

On Mi, 19 Okt 2011, wwguy wrote:
> Are you connect on 5.2GHz? looks to me there were only one place can
> stop the queue which is for radar channel detection.

No, it is channel 1
$ iwlist wlan0 channel
wlan0 32 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Channel 36 : 5.18 GHz
Channel 40 : 5.2 GHz
Channel 44 : 5.22 GHz
Channel 48 : 5.24 GHz
Channel 52 : 5.26 GHz
Channel 56 : 5.28 GHz
Channel 60 : 5.3 GHz
Channel 64 : 5.32 GHz
Channel 100 : 5.5 GHz
Channel 104 : 5.52 GHz
Channel 108 : 5.54 GHz
Channel 112 : 5.56 GHz
Channel 116 : 5.58 GHz
Channel 120 : 5.6 GHz
Channel 124 : 5.62 GHz
Channel 128 : 5.64 GHz
Channel 132 : 5.66 GHz
Channel 136 : 5.68 GHz
Channel 140 : 5.7 GHz
Current Frequency:2.412 GHz (Channel 1)


Well, for the time being the patch is nice and helps, thanks!

If you want me to test more please let me know, but I am leaving
today for some business trip and will be back on Wednesday at
work here.

Best wishes

Norbert
------------------------------------------------------------------------
Norbert Preining preining@{jaist.ac.jp, logic.at, debian.org}
JAIST, Japan TeX Live & Debian Developer
DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
------------------------------------------------------------------------
GOLANT (adj.)
Blank, sly and faintly embarrassed. Pertaining to the expression seen
on the face of someone who has clearly forgotten your name.
--- Douglas Adams, The Meaning of Liff


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