From owner-freebsd-wireless@FreeBSD.ORG Sat Aug 10 14:10:39 2013 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 743E7979; Sat, 10 Aug 2013 14:10:39 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from onlyone.friendlyhosting.spb.ru (onlyone.friendlyhosting.spb.ru [46.4.40.135]) by mx1.freebsd.org (Postfix) with ESMTP id C21292EAB; Sat, 10 Aug 2013 14:10:38 +0000 (UTC) Received: from lion.home.serebryakov.spb.ru (unknown [IPv6:2001:470:923f:1:acd9:718:8db4:b823]) (Authenticated sender: lev@serebryakov.spb.ru) by onlyone.friendlyhosting.spb.ru (Postfix) with ESMTPSA id A847C4AC58; Sat, 10 Aug 2013 18:10:36 +0400 (MSK) Date: Sat, 10 Aug 2013 18:10:30 +0400 From: Lev Serebryakov X-Priority: 3 (Normal) Message-ID: <928191240.20130810181030@serebryakov.spb.ru> To: Adrian Chadd Subject: Re: r254093 wi-fi related instability In-Reply-To: References: <402688630.20130809131517@serebryakov.spb.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-wireless@freebsd.org X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Aug 2013 14:10:39 -0000 Hello, Adrian. You wrote 9 =D0=B0=D0=B2=D0=B3=D1=83=D1=81=D1=82=D0=B0 2013 =D0=B3., 18:12:= 11: AC> Hm! Interesting! Yes, please get me some panic information. Could not reproduce panic yet, but have one problem. At some point of test (my typical not-limited UDP stream from AP to client) AP says: ath0: ath_tx_tid_drain_print: norm: node 0xffffff8000f85000: bf=3D0xffffff8= 00083dc70: addbaw=3D0, dobaw=3D1, seqno=3D1323, retry=3D0 ath0: ath_tx_tid_drain_print: node 0xffffff8000f85000: bf=3D0xffffff800083d= c70: txq[1] axq_depth=3D1, axq_aggr_depth=3D1 ath0: ath_tx_tid_drain_print: node 0xffffff8000f85000: bf=3D0xffffff800083d= c70: tid txq_depth=3D128 hwq_depth=3D2, bar_wait=3D0, isfiltered=3D0 ath0: ath_tx_tid_drain_print: node 0xffffff8000f85000: tid 0: sched=3D1, pa= used=3D0, incomp=3D0, baw_head=3D5, baw_tail=3D64 txa_start=3D1264, ni_txse= qs=3D1451 FRDS 00:15:6d:85:5f:fc->c4:85:08:3f:9e:c2(00:15:6d:85:5f:fc) data QoS [TID = 0] WEP [IV 4d e6 00 3a 00 00 KID 0] 0M 8842 0000 c485 083f 9ec2 0015 6d85 5ffc 0015 6d85 5ffc b052 0000 9ec2 4de6= 0020 3a00 0000 aaaa 0300 0000 0800 4500 05da c572 0000 4011 2008 c0a8 8701= c0a8 8746 5b58 1389 05c6 f538 00a1 3d2e 5206 490b 0007 481a 0000 0000 0000= 0001 0000 1389 0000 0000 11e1 a300 fff6 d840 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637 3839 3031 3233 3435 3637= 3839 3031 3233 3435 3637 3839 And after that rate drops to non-N one (100-150Mbit/s of UDP traffic from AP to client before this event, 28-20Mbit/s after without any recovery for tens of minutes!). It looks like re-negotiation of HT parameters are broken somehow. --=20 // Black Lion AKA Lev Serebryakov