On 2012-07-13 15:26 +0400, Georgiewskiy Yuriy wrote linux-wireless@xxxxxxxx...: 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 уважением With Best Regards GY>Георгиевский Юрий. Georgiewskiy Yuriy GY>+7 4872 711666 +7 4872 711666 GY>факс +7 4872 711143 fax +7 4872 711143 GY>Компания ООО "Ай Ти Сервис" IT Service Ltd GY>http://nkoort.ru http://nkoort.ru GY>JID: GHhost@xxxxxxxxxx JID: GHhost@xxxxxxxxxx GY>YG129-RIPE YG129-RIPE C уважением With Best Regards Георгиевский Юрий. Georgiewskiy Yuriy +7 4872 711666 +7 4872 711666 факс +7 4872 711143 fax +7 4872 711143 Компания ООО "Ай Ти Сервис" IT Service Ltd http://nkoort.ru http://nkoort.ru JID: GHhost@xxxxxxxxxx JID: GHhost@xxxxxxxxxx YG129-RIPE YG129-RIPE
