Return-path: Received: from mx.logic.tuwien.ac.at ([128.130.175.19]:44251 "EHLO mx.logic.tuwien.ac.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752138Ab1JUBYN (ORCPT ); Thu, 20 Oct 2011 21:24:13 -0400 Date: Fri, 21 Oct 2011 10:23:54 +0900 From: Norbert Preining To: Johannes Berg Cc: "Guy, Wey-Yi" , David Rientjes , "linux-kernel@vger.kernel.org" , "ipw3945-devel@lists.sourceforge.net" , "ilw@linux.intel.com" , "linux-wireless@vger.kernel.org" , Pekka Enberg Subject: Re: iwlagn is getting very shaky Message-ID: <20111021012354.GA26758@gamma.logic.tuwien.ac.at> (sfid-20111021_032500_022139_156C4AD9) References: <20111019124931.GC3963@gamma.logic.tuwien.ac.at> <1319038282.25023.21.camel@wwguy-ubuntu> <20111019060108.GA11588@gamma.logic.tuwien.ac.at> <20111019062517.GC11588@gamma.logic.tuwien.ac.at> <1319003304.31823.46.camel@wwguy-huron> <20111019064628.GA14817@gamma.logic.tuwien.ac.at> <1319004836.31823.57.camel@wwguy-huron> <20111020045927.GB23044@gamma.logic.tuwien.ac.at> <1319096418.3959.1.camel@jlt3.sipsolutions.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1319096418.3959.1.camel@jlt3.sipsolutions.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: 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