Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751874Ab1BJHQC (ORCPT ); Thu, 10 Feb 2011 02:16:02 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:44348 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751008Ab1BJHQA (ORCPT ); Thu, 10 Feb 2011 02:16:00 -0500 Date: Wed, 9 Feb 2011 23:15:26 -0800 From: Andrew Morton To: Shawn Starr Cc: linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org Subject: Re: [regression][2.6.38-rcX][net][iwlagn] WiFi signal after period of time tanks causing contant drops Message-Id: <20110209231526.cce3e7b7.akpm@linux-foundation.org> In-Reply-To: <613373.34172.qm@smtp106.rog.mail.re2.yahoo.com> References: <613373.34172.qm@smtp106.rog.mail.re2.yahoo.com> X-Mailer: Sylpheed 2.7.1 (GTK+ 2.18.9; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 9791 Lines: 210 (cc linux-wireless) On Sun, 06 Feb 2011 22:54 -0500 Shawn Starr wrote: > > Using a Intel Corporation PRO/Wireless 5100 AGN [Shiloh] card after rebooting > and a period of of seveal hours signal begins to drop to low levels: > > > wlan0 IEEE 802.11abgn ESSID:"XXXXXXXX" > Mode:Managed Frequency:2.462 GHz Access Point: AA:BB:CC:DD:EE:FF > Bit Rate=11 Mb/s Tx-Power=15 dBm > Retry long limit:7 RTS thr:off Fragment thr:off > Power Management:off > Link Quality=12/70 Signal level=-98 dBm > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 > Tx excessive retries:0 Invalid misc:35 Missed beacon:0 > > ... > > Link Quality=12/70 Signal level=-98 dBm > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 > Tx excessive retries:0 Invalid misc:40 Missed beacon:0 > > I start seeing lots of Invalid misc errors and connection drops. If I reboot, > then signal will be back to normal for a period of time again. > > My official kernel is from Fedora rawhide (2.6.38-0.rc3.git4.1.fc15.x86_64) > > Anyone else notice poor link/signal levels? > > .37 showed no such issues. > > > -- snip -- > > kernel messages when this occurred: > > > [15110.285207] CE: hpet increased min_delta_ns to 20113 nsec > [33809.732205] cfg80211: Calling CRDA to update world regulatory domain > [33809.831816] cfg80211: World regulatory domain updated: > [33809.831819] cfg80211: (start_freq - end_freq @ bandwidth), > (max_antenna_gain, max_eirp) > [33809.831822] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [33809.831825] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 > mBi, 2000 mBm) > [33809.831827] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 > mBi, 2000 mBm) > [33809.831830] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [33809.831832] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [33809.831841] cfg80211: Calling CRDA for country: US > [33809.835215] cfg80211: Regulatory domain changed to country: US > [33809.835217] cfg80211: (start_freq - end_freq @ bandwidth), > (max_antenna_gain, max_eirp) > [33809.835220] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 > mBi, 2700 mBm) > [33809.835223] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 > mBi, 1700 mBm) > [33809.835225] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [33809.835228] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [33809.835230] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [33809.835233] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 > mBi, 3000 mBm) > [33812.364119] wlan0: authenticate with aa:bb:cc:dd:ee:ff (try 1) > [33812.366620] wlan0: authenticated > [33812.366643] wlan0: waiting for beacon from aa:bb:cc:dd:ee:ff > [33828.410709] wlan0: authenticate with aa:bb:cc:dd:ee:ff (try 1) > [33828.413725] wlan0: authenticated > [33828.413748] wlan0: waiting for beacon from aa:bb:cc:dd:ee:ff > [33828.418428] wlan0: beacon received > [33828.421042] wlan0: associate with aa:bb:cc:dd:ee:ff (try 1) > [33828.446039] wlan0: RX AssocResp from aa:bb:cc:dd:ee:ff (capab=0x411 > status=0 aid=1) > [33828.446042] wlan0: associated > [34100.737227] cfg80211: Calling CRDA to update world regulatory domain > [34100.740353] cfg80211: World regulatory domain updated: > [34100.740355] cfg80211: (start_freq - end_freq @ bandwidth), > (max_antenna_gain, max_eirp) > [34100.740358] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34100.740361] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 > mBi, 2000 mBm) > [34100.740363] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 > mBi, 2000 mBm) > [34100.740366] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34100.740368] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34100.740378] cfg80211: Calling CRDA for country: US > [34100.742781] cfg80211: Regulatory domain changed to country: US > [34100.742784] cfg80211: (start_freq - end_freq @ bandwidth), > (max_antenna_gain, max_eirp) > [34100.742787] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 > mBi, 2700 mBm) > [34100.742789] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 > mBi, 1700 mBm) > [34100.742792] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34100.742794] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34100.742797] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34100.742799] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 > mBi, 3000 mBm) > [34103.381063] wlan0: authenticate with aa:bb:cc:dd:ee:ff (try 1) > [34103.385675] wlan0: authenticated > [34103.385707] wlan0: waiting for beacon from aa:bb:cc:dd:ee:ff > [34103.465542] wlan0: beacon received > [34103.468042] wlan0: associate with aa:bb:cc:dd:ee:ff (try 1) > [34103.470316] wlan0: RX AssocResp from aa:bb:cc:dd:ee:ff (capab=0x411 > status=0 aid=1) > [34103.470319] wlan0: associated > [34114.737244] cfg80211: Calling CRDA to update world regulatory domain > [34114.739837] cfg80211: World regulatory domain updated: > [34114.739840] cfg80211: (start_freq - end_freq @ bandwidth), > (max_antenna_gain, max_eirp) > [34114.739843] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34114.739846] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 > mBi, 2000 mBm) > [34114.739848] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 > mBi, 2000 mBm) > [34114.739851] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34114.739853] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34114.739863] cfg80211: Calling CRDA for country: US > [34114.742475] cfg80211: Regulatory domain changed to country: US > [34114.742477] cfg80211: (start_freq - end_freq @ bandwidth), > (max_antenna_gain, max_eirp) > [34114.742480] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 > mBi, 2700 mBm) > [34114.742483] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 > mBi, 1700 mBm) > [34114.742485] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34114.742488] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34114.742490] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34114.742493] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 > mBi, 3000 mBm) > [34124.964949] wlan0: authenticate with aa:bb:cc:dd:ee:ff (try 1) > [34124.967818] wlan0: authenticated > [34124.967842] wlan0: waiting for beacon from aa:bb:cc:dd:ee:ff > [34124.969754] wlan0: beacon received > [34124.972015] wlan0: associate with aa:bb:cc:dd:ee:ff (try 1) > [34124.974327] wlan0: RX AssocResp from aa:bb:cc:dd:ee:ff (capab=0x411 > status=0 aid=1) > [34124.974329] wlan0: associated > [34249.738240] cfg80211: Calling CRDA to update world regulatory domain > [34249.740811] cfg80211: World regulatory domain updated: > [34249.740814] cfg80211: (start_freq - end_freq @ bandwidth), > (max_antenna_gain, max_eirp) > [34249.740817] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34249.740819] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 > mBi, 2000 mBm) > [34249.740822] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 > mBi, 2000 mBm) > [34249.740824] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34249.740827] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34249.740835] cfg80211: Calling CRDA for country: US > [34249.743295] cfg80211: Regulatory domain changed to country: US > [34249.743298] cfg80211: (start_freq - end_freq @ bandwidth), > (max_antenna_gain, max_eirp) > [34249.743300] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 > mBi, 2700 mBm) > [34249.743303] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 > mBi, 1700 mBm) > [34249.743305] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34249.743308] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34249.743310] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 > mBi, 2000 mBm) > [34249.743313] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 > mBi, 3000 mBm) > [34252.430829] wlan0: authenticate with aa:bb:cc:dd:ee:ff (try 1) > [34252.433740] wlan0: authenticated > [34252.433765] wlan0: waiting for beacon from aa:bb:cc:dd:ee:ff > [34275.365426] wlan0: authenticate with aa:bb:cc:dd:ee:ff (try 1) > [34275.367527] wlan0: authenticated > [34275.367552] wlan0: waiting for beacon from aa:bb:cc:dd:ee:ff > [35121.713088] wlan0: authenticate with aa:bb:cc:dd:ee:ff (try 1) > [35121.716042] wlan0: authenticated > [35121.716079] wlan0: waiting for beacon from aa:bb:cc:dd:ee:ff > [35121.743282] wlan0: beacon received > [35121.746047] wlan0: associate with aa:bb:cc:dd:ee:ff (try 1) > [35121.750694] wlan0: RX AssocResp from aa:bb:cc:dd:ee:ff (capab=0x411 > status=0 aid=2) > [35121.750697] wlan0: associated > > Thanks, > Shawn. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/