Return-path: Received: from icf.org.ru ([91.193.237.1]:49723 "EHLO icf.org.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932140Ab2GMMNm (ORCPT ); Fri, 13 Jul 2012 08:13:42 -0400 Received: from bottleman (helo=localhost) by icf.org.ru with local-esmtp (Exim 4.75) (envelope-from ) id 1SpeFt-0003RA-7j for linux-wireless@vger.kernel.org; Fri, 13 Jul 2012 15:41:53 +0400 Date: Fri, 13 Jul 2012 15:41:53 +0400 (MSK) From: Georgiewskiy Yuriy To: linux-wireless@vger.kernel.org Subject: Re: ath: phy0: Failed to stop TX DMA, queues=0x001! In-Reply-To: Message-ID: (sfid-20120713_141346_707216_B24B91CF) References: MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1050998036-480947806-1342179713=:12697" Sender: linux-wireless-owner@vger.kernel.org List-ID: This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1050998036-480947806-1342179713=:12697 Content-Type: TEXT/PLAIN; charset=KOI8-R Content-Transfer-Encoding: 8BIT On 2012-07-13 15:26 +0400, Georgiewskiy Yuriy wrote linux-wireless@vger.ker...: also update - i also try to test it with AP<->client mode, just start hostapd on one node, remove antennas nad start iperf, in this case there is no errors and link seems very more stable then i use mesh nodes, may be this is also 802.11s related too. GY> GY>Hi all again, seems i hit another bug, my test setup is a three mesh nodes, GY>all in one room, two is alix pc engines with EMP9605H (ar9220) with antennas GY>like on soho routers and one is my laptop with dbii f52n-pro ar9220 based GY>too. Use compat-wireless-3.5-rc5-1-snpc on all nodes. GY> GY>All three nodes work fine, but then i remove antenas from one of the node (it GY>contiue work only with pigtails) signal levels with this node is low but GY>enough GY>to work, it continue to work but i have errors in dmesg on all three nodes: GY> GY>ath: phy0: Failed to stop TX DMA, queues=0x001! GY> GY>Links is become unstable, packet loss regardless to which node taffic is GY>goes, GY>to node without antennas or betwen nodes with antennas. GY> GY>I tryin change wireless cards with no results, but all what i try is ar9220 GY>based, just different manufactures. Also i try add ubiquiti nanostation M2 GY>with openwrt GY>on it in this setup, and get same results on it too - dma erros and unstable GY>links with packetloss. GY> GY>Then i connect antennas back, all strat working fine again withous erorors. GY>I think it seems low signal and/or low quality links is triggering with bug. GY> GY>I also trying use stock kernel 3.2.x and 3.4.x, compat-wireless bleeding GY>edge, but no luck - same results. GY> GY>Please give any suggestions how i can help find a root case of this bug to GY>resolve GY>it? GY> GY>C ????????? With Best Regards GY>???????????? ????. Georgiewskiy Yuriy GY>+7 4872 711666 +7 4872 711666 GY>???? +7 4872 711143 fax +7 4872 711143 GY>???????? ??? "?? ?? ??????" IT Service Ltd GY>http://nkoort.ru http://nkoort.ru GY>JID: GHhost@icf.org.ru JID: GHhost@icf.org.ru GY>YG129-RIPE YG129-RIPE C ????????? With Best Regards ???????????? ????. Georgiewskiy Yuriy +7 4872 711666 +7 4872 711666 ???? +7 4872 711143 fax +7 4872 711143 ???????? ??? "?? ?? ??????" IT Service Ltd http://nkoort.ru http://nkoort.ru JID: GHhost@icf.org.ru JID: GHhost@icf.org.ru YG129-RIPE YG129-RIPE ---1050998036-480947806-1342179713=:12697--