From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752209Ab1LSQFP (ORCPT ); Mon, 19 Dec 2011 11:05:15 -0500 Received: from lo.gmane.org ([80.91.229.12]:54114 "EHLO lo.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750713Ab1LSQFM (ORCPT ); Mon, 19 Dec 2011 11:05:12 -0500 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: biz Subject: Re: [regression][2.6.38-rcX][net][iwlagn] WiFi signal after period of time tanks causing contant drops Date: Mon, 19 Dec 2011 15:59:07 +0000 (UTC) Message-ID: References: <613373.34172.qm@smtp106.rog.mail.re2.yahoo.com> <1297350984.20613.68.camel@wwguy-ubuntu> <599344.62309.qm@smtp105.rog.mail.re2.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: sea.gmane.org User-Agent: Loom/3.14 (http://gmane.org/) X-Loom-IP: 71.203.167.21 (Mozilla/5.0 (X11; Linux i686; rv:8.0) Gecko/20100101 Firefox/8.0) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Shawn Starr rogers.com> writes: > > On Thursday, February 10, 2011 10:07:48 PM Shawn Starr wrote: > > On Thursday, February 10, 2011 07:16:24 AM wwguy wrote: > > > On Wed, 2011-02-09 at 23:15 -0800, Andrew Morton wrote: > > > > (cc linux-wireless) > > > > > > > > On Sun, 06 Feb 2011 22:54 -0500 Shawn Starr rogers.com> > > > > 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. > > > > > > did not see anything special from the log, is any environment or > > > condition changed? what AP you are using? > > > > > > Thanks > > > Wey > > > > I'm using an Linksys WRT54G with tomato firmware for a number of years. The > > AP is in my house and very close. I will keep an eye on this. This all > > seemed to have started after we had a power outage. The AP is fine however > > and I haven't noticed this drop a 2 after. > > > > If there was any environment changes they appear to have 'settled' down. > > > > I will be going to 2.6.38-0.rc4.git0.1.fc15 right now and will do another > > long hour test by keeping the laptop on for a number of hours on the > > weekend. > > To answer myself, https://bugzilla.kernel.org/show_bug.cgi?id=28832 > > Looks like this is behavour observed in -rc3 the same period I did the > upgrade. I can discount the power outage :) > > > > > Thanks, > > Shawn. > I'm seeing this too .. I have a lenovo laptop t420s .. I have great connection for a period of time .. then all of a sudden my max download is 1Mb/sec .. I have changed the MTU on the wlan0 and ppp0 [i'm also using vpn] to 1300 but the problem eventually reappears. I'm using linksys wrt54gl . The connection is solid. If i disconnect my wireless connection and then re connect then everythign is fast again.. Linux localhost.localdomain 2.6.41.4-1.fc15.i686.PAE #1 SMP Tue Nov 29 11:47:02 UTC 2011 i686 i686 i386 GNU/Linux BEFORE lo no wireless extensions. em1 no wireless extensions. wlan0 IEEE 802.11bgn ESSID:"linksys" Mode:Managed Frequency:2.437 GHz Access Point: 58:6D:8F:92:A9:5E Bit Rate=54 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr=2347 B Fragment thr:off Power Management:off Link Quality=60/70 Signal level=-50 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:193 Missed beacon:0 AFTER wlan0 IEEE 802.11bgn ESSID:"linksys" Mode:Managed Frequency:2.437 GHz Access Point: 58:6D:8F:92:A9:5E Bit Rate=54 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr=2347 B Fragment thr:off Power Management:off Link Quality=62/70 Signal level=-48 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:42692 Missed beacon:0