From owner-freebsd-wireless@FreeBSD.ORG Wed Mar 27 00:21:11 2013 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 9BC206E2; Wed, 27 Mar 2013 00:21:11 +0000 (UTC) (envelope-from jrisom@gmail.com) Received: from mail-ie0-x22b.google.com (mail-ie0-x22b.google.com [IPv6:2607:f8b0:4001:c03::22b]) by mx1.freebsd.org (Postfix) with ESMTP id 645DE113; Wed, 27 Mar 2013 00:21:11 +0000 (UTC) Received: by mail-ie0-f171.google.com with SMTP id e14so7896725iej.30 for ; Tue, 26 Mar 2013 17:21:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:message-id:date:from:user-agent:mime-version:to:cc :subject:references:in-reply-to:content-type :content-transfer-encoding; bh=vxm/ZEY9X7CSKg+DyXXP3gPqVGG9i9Mpp+yH1TIC/tg=; b=Um3Ympn/iZU8EeaAh1XNuLkQrxWPBGVuMbxzPF/OGPR7jpTrsLmt/Pr3ZNRvc84Et5 Uw3QBu+11YSK1fksGRxXjxFjWxmlirGDQa8ngdq7lA++XTVqrmMN0Q3h8lnzKGTdwU8P h4vm14Eo1FyXFIcAOlqxgRU7EdhrOPZN312dEEITo2MehURTjolpwQo5tHdR0fz8P63P v9ZgwNUwI6uiobiEzUKvh0FX0CSjyHOvBsm3ET3DezE/4Ua2mDt9pcUzHkmEdIlyK+hD ZKGXGM0uFP5CPV20PBHnV1x7vg7vq1F5oZ8eqSixmZzs5xuslfG/HxN30PUftwaoab3z 8cbQ== X-Received: by 10.50.78.202 with SMTP id d10mr2857328igx.69.1364343671118; Tue, 26 Mar 2013 17:21:11 -0700 (PDT) Received: from [192.168.1.44] (c-98-212-197-211.hsd1.il.comcast.net. [98.212.197.211]) by mx.google.com with ESMTPS id s8sm4974451igs.0.2013.03.26.17.21.09 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 26 Mar 2013 17:21:10 -0700 (PDT) Message-ID: <51523B6F.5010506@gmail.com> Date: Tue, 26 Mar 2013 19:21:03 -0500 From: Joshua Isom User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20130307 Thunderbird/17.0.4 MIME-Version: 1.0 To: Adrian Chadd Subject: Re: [wip] ar9300 hostap support References: <51522277.6040107@gmail.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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: Wed, 27 Mar 2013 00:21:11 -0000 Another panic, but a different cause. I think I'd seen it once before but I'm not sure. Unread portion of the kernel message buffer: ath0: ath_edma_recv_proc_queue: handled npkts 0 ath0: ath_edma_tx_processq: Q1: empty? panic: _mtx_lock_sleep: recursed on non-recursive mutex ath0_txq1 @ /root/ATH/head/sys/modules/ath/../../dev/ath/if_ath_tx_edma.c:667 cpuid = 1 KDB: enter: panic [...] (kgdb) bt #0 doadump (textdump=0) at pcpu.h:229 #1 0xffffffff802fb52e in db_dump (dummy=, dummy2=0, dummy3=0, dummy4=0x0) at /root/ATH/head/sys/ddb/db_command.c:543 #2 0xffffffff802fafda in db_command (last_cmdp=, cmd_table=, dopager=1) at /root/ATH/head/sys/ddb/db_command.c:449 #3 0xffffffff802fad92 in db_command_loop () at /root/ATH/head/sys/ddb/db_command.c:502 #4 0xffffffff802fd740 in db_trap (type=, code=0) at /root/ATH/head/sys/ddb/db_main.c:231 #5 0xffffffff8056e4e3 in kdb_trap (type=3, code=0, tf=) at /root/ATH/head/sys/kern/subr_kdb.c:654 #6 0xffffffff807d5368 in trap (frame=0xffffff8020bdd7d0) at /root/ATH/head/sys/amd64/amd64/trap.c:579 #7 0xffffffff807be232 in calltrap () at exception.S:228 #8 0xffffffff8056dcce in kdb_enter (why=0xffffffff808abd45 "panic", msg=) at cpufunc.h:63 #9 0xffffffff805390f7 in vpanic (fmt=, ap=) at /root/ATH/head/sys/kern/kern_shutdown.c:747 #10 0xffffffff80538fa6 in kassert_panic (fmt=) at /root/ATH/head/sys/kern/kern_shutdown.c:642 #11 0xffffffff80524cfa in __mtx_lock_sleep (c=0xffffff800090dea8, tid=18446741874793984000, opts=, file=, line=549311568) at /root/ATH/head/sys/kern/kern_mutex.c:394 #12 0xffffffff8052491a in __mtx_lock_flags (c=, opts=0, file=0xffffffff813f2dcf "/root/ATH/head/sys/modules/ath/../../dev/ath/if_ath_tx_edma.c", line=667) at /root/ATH/head/sys/kern/kern_mutex.c:224 #13 0xffffffff81335467 in ath_edma_tx_processq (sc=0xffffff800090d000, dosched=1) at /root/ATH/head/sys/modules/ath/../../dev/ath/if_ath_tx_edma.c:667 #14 0xffffffff8057cea0 in taskqueue_run_locked (queue=0xfffffe0006488500) at /root/ATH/head/sys/kern/subr_taskqueue.c:333 #15 0xffffffff8057d67b in taskqueue_thread_loop (arg=) at /root/ATH/head/sys/kern/subr_taskqueue.c:535 #16 0xffffffff80508a14 in fork_exit (callout=0xffffffff8057d5e0 , arg=0xffffff800090d810, frame=0xffffff8020bddc00) at /root/ATH/head/sys/kern/kern_fork.c:991 #17 0xffffffff807be76e in fork_trampoline () at exception.S:602 #18 0x0000000000000000 in ?? () On 3/26/2013 7:11 PM, Adrian Chadd wrote: > > Hah, that's nice to know. > > Please let me know if you see any further issues here. > > I have another tweak to add in soon in the TX completion code; I just > noticed a very subtle difference between what my code does and what > the reference code does. > > Thanks, > > > > Adrian >