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From: Norbert Preining <preining@logic.at>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: "Guy, Wey-Yi" <wey-yi.w.guy@intel.com>,
	David Rientjes <rientjes@google.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"ipw3945-devel@lists.sourceforge.net" 
	<ipw3945-devel@lists.sourceforge.net>,
	"ilw@linux.intel.com" <ilw@linux.intel.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
	Pekka Enberg <penberg@cs.helsinki.fi>
Subject: Re: iwlagn is getting very shaky
Date: Fri, 21 Oct 2011 10:23:54 +0900	[thread overview]
Message-ID: <20111021012354.GA26758@gamma.logic.tuwien.ac.at> (raw)
In-Reply-To: <1319096418.3959.1.camel@jlt3.sipsolutions.net>

On Do, 20 Okt 2011, Johannes Berg wrote:
> > [17409.616748] wlan0: direct probe to 00:24:c4:ab:bd:e0 (try 1/3)
..
> > [17419.285141] 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)
> 
> It seems a bit like the 5 GHz AP (:e0) just fails, and wpa_supplicant
> selects a 2.4 GHz AP (:ef) now? Pure conjecture, I guess the AP could
> also be on the same channel -- did you have scan information for these
> APs?

BSS 00:24:c4:ab:bd:e0 (on wlan0)
        TSF: 8728607601135 usec (101d, 00:36:47)
        freq: 2412
        beacon interval: 102
        capability: ESS ShortPreamble ShortSlotTime (0x0421)
        signal: -62.00 dBm
        last seen: 6012 ms ago
        SSID: XXXXXX
        Supported rates: 1.0* 2.0* 5.5* 6.0 9.0 11.0* 12.0 18.0 
        DS Parameter set: channel 1
        TIM: DTIM Count 0 DTIM Period 1 Bitmap Control 0x0 Bitmap[0] 0x0
        Country: JP     Environment: Indoor/Outdoor
                Channels [1 - 13] @ 20 dBm
        ERP: Use_Protection
        HT capabilities:
                Capabilities: 0x182c
                        HT20
                        SM Power Save disabled
                        RX HT20 SGI
                        No RX STBC
                        Max AMSDU length: 7935 bytes
                        DSSS/CCK HT40
                Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                Minimum RX AMPDU time spacing: 8 usec (0x06)
                HT RX MCS rate indexes supported: 0-15
                HT TX MCS rate indexes are undefined
        Extended supported rates: 24.0 36.0 48.0 54.0 
        HT operation:
                 * primary channel: 1
                 * secondary channel offset: no secondary
                 * STA channel width: 20 MHz
                 * RIFS: 0
                 * HT protection: non-HT mixed
                 * non-GF present: 1
                 * OBSS non-GF present: 0
                 * dual beacon: 0
                 * dual CTS protection: 0
                 * STBC beacon: 0
                 * L-SIG TXOP Prot: 0
                 * PCO active: 0
                 * PCO phase: 0
        WMM:     * Parameter version 1
                 * u-APSD
                 * BE: CW 15-1023, AIFSN 3
                 * BK: CW 15-1023, AIFSN 7
                 * VI: CW 7-15, AIFSN 2, TXOP 3008 usec
                 * VO: acm CW 3-7, AIFSN 2, TXOP 1504 usec


And the one I am on:
BSS 00:24:c4:ab:bd:ef (on wlan0) -- associated
        TSF: 8728558719143 usec (101d, 00:35:58)
        freq: 5200
        beacon interval: 102
        capability: ESS (0x0001)
        signal: -69.00 dBm
        last seen: 96 ms ago
        Information elements from Probe Response frame:
        SSID: XXXXXX
        Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0 
        Country: JP     Environment: Indoor/Outdoor
                Channels [36 - 64] @ 22 dBm
        HT capabilities:
                Capabilities: 0x186e
                        HT20/HT40
                        SM Power Save disabled
                        RX HT20 SGI
                        RX HT40 SGI
                        No RX STBC
                        Max AMSDU length: 7935 bytes
                        DSSS/CCK HT40
                Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                Minimum RX AMPDU time spacing: 8 usec (0x06)
                HT RX MCS rate indexes supported: 0-15
                HT TX MCS rate indexes are undefined
        HT operation:
                 * primary channel: 40
                 * secondary channel offset: below
                 * STA channel width: any
                 * RIFS: 1
                 * HT protection: no
                 * non-GF present: 1
                 * OBSS non-GF present: 0
                 * dual beacon: 0
                 * dual CTS protection: 0
                 * STBC beacon: 0
                 * L-SIG TXOP Prot: 0
                 * PCO active: 0
                 * PCO phase: 0
        WMM:     * Parameter version 1
                 * u-APSD
                 * BE: CW 15-1023, AIFSN 3
                 * BK: CW 15-1023, AIFSN 7
                 * VI: CW 7-15, AIFSN 2, TXOP 3008 usec
                 * VO: acm CW 3-7, AIFSN 2, TXOP 1504 usec


No idea if that helps you.

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
------------------------------------------------------------------------
SCREGGAN (n. banking)
The crossed-out bit caused by people putting the wrong year on their
cheques all through January.
			--- Douglas Adams, The Meaning of Liff

  parent reply	other threads:[~2011-10-21  1:24 UTC|newest]

Thread overview: 94+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-19  6:01 iwlagn is getting very shaky Norbert Preining
2011-10-19  6:09 ` David Rientjes
2011-10-19  6:11   ` Pekka Enberg
2011-10-19  5:55     ` Guy, Wey-Yi
2011-10-19  6:48       ` Norbert Preining
2011-10-19  6:15         ` Guy, Wey-Yi
2011-10-19  7:19           ` Pekka Enberg
2011-10-19  6:44             ` Guy, Wey-Yi
2011-10-20  9:12               ` Pekka Enberg
2011-10-19  6:39         ` Guy, Wey-Yi
2011-10-19 12:49           ` Norbert Preining
2011-10-19 15:31             ` wwguy
2011-10-20  2:02               ` Norbert Preining
2011-10-20  1:32                 ` Guy, Wey-Yi
2011-10-20  2:51                   ` Norbert Preining
2011-10-20  2:55                     ` Guy, Wey-Yi W
2011-10-20  3:14                       ` Norbert Preining
2011-10-20  5:30                         ` David Rientjes
2011-10-19  6:25   ` Norbert Preining
2011-10-19  5:48     ` Guy, Wey-Yi
2011-10-19  6:46       ` Norbert Preining
2011-10-19  6:13         ` Guy, Wey-Yi
2011-10-20  4:59       ` Norbert Preining
2011-10-20  7:40         ` Johannes Berg
2011-10-20 13:45           ` Norbert Preining
2011-10-20 13:50             ` Johannes Berg
2011-10-20 13:54               ` Norbert Preining
2011-10-21  1:23           ` Norbert Preining [this message]
2011-10-21  7:26             ` Johannes Berg
2011-10-20 14:10         ` wwguy
2011-10-21  1:24           ` Norbert Preining
2011-10-23 21:26             ` David Rientjes
2011-10-26  2:50               ` Norbert Preining
2011-10-26  3:55                 ` wwguy
2011-10-26  4:03                   ` Norbert Preining
2011-10-26  4:00                     ` wwguy
2011-10-26  4:34                       ` Norbert Preining
2011-10-26  4:54                         ` Richard Yao
2011-10-26 19:56                           ` [Ilw] " wwguy
2011-10-26 19:36                         ` wwguy
2011-11-02  3:13                     ` Norbert Preining
2011-11-02  3:21                       ` Guy, Wey-Yi
2011-11-04  0:56                         ` Richard Yao
2011-11-04  4:58                         ` Norbert Preining
2011-11-07 12:38                           ` Norbert Preining
2011-11-07 23:37                             ` Guy, Wey-Yi
2011-11-08  4:32                               ` Norbert Preining
2011-11-08  8:07                                 ` Emmanuel Grumbach
2011-11-08  8:24                                   ` Emmanuel Grumbach
2011-11-09  5:11                                     ` Norbert Preining
2011-11-09  7:15                                       ` Emmanuel Grumbach
2011-11-21  3:06                                         ` Norbert Preining
2011-11-21 13:59                                           ` Emmanuel Grumbach
2011-11-21 23:24                                             ` Norbert Preining
2011-11-22  0:24                                               ` Norbert Preining
2011-11-22  5:13                                             ` Norbert Preining
2011-11-22  6:46                                               ` Emmanuel Grumbach
2011-11-22  6:48                                                 ` Emmanuel Grumbach
2011-11-22  7:27                                                   ` Norbert Preining
2011-11-22  7:45                                                     ` Emmanuel Grumbach
2011-11-22  7:54                                                       ` Norbert Preining
2011-11-22  8:11                                                         ` Emmanuel Grumbach
2011-11-22 12:43                                                           ` Norbert Preining
2011-11-22 14:15                                                             ` Emmanuel Grumbach
2011-11-23  1:55                                                               ` Norbert Preining
2011-11-24  6:47                                                                 ` Emmanuel Grumbach
2011-11-24 23:02                                                                   ` Norbert Preining
2011-11-25  4:50                                                                     ` Emmanuel Grumbach
2011-11-25 12:21                                                                   ` Norbert Preining
2011-11-25 12:31                                                                     ` Emmanuel Grumbach
2011-11-25 12:37                                                                       ` Norbert Preining
2011-11-27  6:38                                                                         ` Emmanuel Grumbach
2011-11-27  9:43                                                                           ` Emmanuel Grumbach
2011-11-27  9:46                                                                             ` Johannes Berg
2011-11-27 10:44                                                                               ` Emmanuel Grumbach
2011-11-28  3:56                                                                                 ` Norbert Preining
     [not found]                                                                                   ` <CANUX_P2kYiFCP8uAhLZC_kVEjoyxabRBx3Pn+ndtFus=6hJN7Q@mail.gmail.com>
2011-11-28  4:23                                                                                     ` Norbert Preining
2011-11-28  6:33                                                                                       ` Emmanuel Grumbach
2011-11-28 23:25                                                                                       ` Norbert Preining
2011-11-29  6:59                                                                                         ` Emmanuel Grumbach
2011-11-29  7:48                                                                                           ` Jeff Chua
2011-11-29  7:50                                                                                             ` Emmanuel Grumbach
2011-11-29  8:31                                                                                           ` Johannes Berg
2011-11-29  9:19                                                                                             ` Emmanuel Grumbach
2011-11-29  9:32                                                                                               ` Norbert Preining
2011-12-01  3:17                                                                                                 ` Norbert Preining
2011-12-11  9:24                                                                                             ` Emmanuel Grumbach
2011-12-11 19:56                                                                                               ` Emmanuel Grumbach
2011-12-15 14:07                                                                                                 ` Johannes Berg
2011-11-16 13:40                                       ` Richard Yao
2011-11-21  3:03                                         ` Norbert Preining
2011-10-26  4:19 ` Richard Yao
2011-10-27  0:05   ` Fwd: " Richard Yao
2011-10-27  3:48     ` Guy, Wey-Yi W

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