Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759095Ab1CDAzQ (ORCPT ); Thu, 3 Mar 2011 19:55:16 -0500 Received: from mail-wy0-f174.google.com ([74.125.82.174]:40530 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758951Ab1CDAzO convert rfc822-to-8bit (ORCPT ); Thu, 3 Mar 2011 19:55:14 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=nFqNp+B9iu/Clf4y0kZztN1Dpl0Qxq/O2SPPJZ1EGGK2eN2ejgIexrGMQElNEZuxfn hyH/YAjPe03dFLvpZldn4qKmmuKlfd3AzClDHKox/+3DQy1KCodckIXSzDIxUHP1AlJp AEu2vKaeIXUs6cyG38IEemSGA7P9BVS3VCw1A= MIME-Version: 1.0 In-Reply-To: <20110303135942.GA8969@tuxdriver.com> References: <20110303135942.GA8969@tuxdriver.com> Date: Thu, 3 Mar 2011 16:55:12 -0800 Message-ID: Subject: Re: WARNING: at drivers/net/wireless/ath/ath9k/recv.c:536 ath_stoprecv+0xc8/0xda [ath9k]() From: Justin Mattock To: "John W. Linville" Cc: linux-wireless@vger.kernel.org, Linux Kernel Mailing List , ath9k-devel@atheros.com Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4326 Lines: 93 On Thu, Mar 3, 2011 at 5:59 AM, John W. Linville wrote: > On Wed, Mar 02, 2011 at 09:47:43PM -0800, Justin Mattock wrote: >> not sure what this is..(below) >> >> >> [ ? 33.951046] CE: hpet increased min_delta_ns to 20113 nsec >> [ ? 35.567319] EXT4-fs (sda3): re-mounted. Opts: >> errors=panic,user_xattr,debug,acl,commit=600 >> [ ? 36.350144] wlan0: authenticate with 00:0b:86:32:f8:60 (try 1) >> [ ? 36.352284] wlan0: authenticated >> [ ? 36.352396] wlan0: associate with 00:0b:86:32:f8:60 (try 1) >> [ ? 36.356854] wlan0: RX AssocResp from 00:0b:86:32:f8:60 (capab=0x421 >> status=0 aid=2) >> [ ? 36.356862] wlan0: associated >> [ ? 41.370318] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 >> AR_DIAG_SW=0x42000020 >> [ ? 41.370324] ath: Could not stop RX, we could be confusing the DMA >> engine when we start RX up >> [ ? 41.370328] ------------[ cut here ]------------ >> [ ? 41.370345] WARNING: at drivers/net/wireless/ath/ath9k/recv.c:536 >> ath_stoprecv+0xc8/0xda [ath9k]() >> [ ? 41.370349] Hardware name: MacBookPro2,2 >> [ ? 41.370351] Modules linked in: hidp xfrm4_mode_transport xcbc >> rmd160 sha512_generic rfcomm sco bnep l2cap ipt_REJECT xt_tcpudp >> ipt_LOG iptable_nat nf_nat xt_state nf_conntrack_ftp nf_conntrack_ipv4 >> nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables x_tables btusb >> bluetooth evdev psmouse thermal fan container button ac battery video >> ath9k ath9k_common ath9k_hw ath ttm drm aes_x86_64 lzo zlib ipcomp >> xfrm_ipcomp crypto_null sha256_generic cbc des_generic cast5 blowfish >> serpent camellia twofish_generic twofish_x86_64 twofish_common ctr ah4 >> esp4 authenc firewire_ohci firewire_core uhci_hcd ehci_hcd coretemp >> acpi_cpufreq processor mperf appletouch applesmc >> [ ? 41.370430] Pid: 766, comm: kworker/u:4 Not tainted >> 2.6.38-rc6-00116-g2821f46 #5 >> [ ? 41.370434] Call Trace: >> [ ? 41.370444] ?[] ? warn_slowpath_common+0x80/0x98 >> [ ? 41.370450] ?[] ? warn_slowpath_null+0x15/0x17 >> [ ? 41.370458] ?[] ? ath_stoprecv+0xc8/0xda [ath9k] >> [ ? 41.370467] ?[] ? ath_set_channel+0xb0/0x217 [ath9k] >> [ ? 41.370475] ?[] ? ath9k_config+0x3c0/0x4c3 [ath9k] >> [ ? 41.370482] ?[] ? ieee80211_hw_config+0x120/0x129 >> [ ? 41.370487] ?[] ? ieee80211_scan_work+0x2f8/0x496 >> [ ? 41.370495] ?[] ? >> ath_tx_complete_poll_work+0xf3/0x102 [ath9k] >> [ ? 41.370501] ?[] ? ieee80211_scan_work+0x0/0x496 >> [ ? 41.370506] ?[] ? process_one_work+0x266/0x3d7 >> [ ? 41.370511] ?[] ? worker_thread+0x1d6/0x350 >> [ ? 41.370515] ?[] ? worker_thread+0x0/0x350 >> [ ? 41.370521] ?[] ? kthread+0x7d/0x85 >> [ ? 41.370528] ?[] ? kernel_thread_helper+0x4/0x10 >> [ ? 41.370533] ?[] ? kthread+0x0/0x85 >> [ ? 41.370537] ?[] ? kernel_thread_helper+0x0/0x10 >> [ ? 41.370541] ---[ end trace 062f507148a6fa8e ]--- >> >> >> from what I remember I was at a local college(caltech) trying to >> connect to their public wifi >> in the public area. with no luck, then this popped up. >> full dmesg here: >> >> http://fpaste.org/SKU4/ > > In ath_stoprecv: > > ? ? ? ?if (!(ah->ah_flags & AH_UNPLUGGED) && > ? ? ? ? ? ?unlikely(!stopped)) { > ? ? ? ? ? ? ? ?ath_err(ath9k_hw_common(sc->sc_ah), > ? ? ? ? ? ? ? ? ? ? ? ?"Could not stop RX, we could be " > ? ? ? ? ? ? ? ? ? ? ? ?"confusing the DMA engine when we start RX up\n"); > ? ? ? ? ? ? ? ?ATH_DBG_WARN_ON_ONCE(!stopped); > ? ? ? ?} > > The Atheros guys will have to comment. > > John > -- > John W. Linville ? ? ? ? ? ? ? ?Someday the world will need a hero, and you > linville@tuxdriver.com ? ? ? ? ? ? ? ? ?might be all we have. ?Be ready. > cool, thanks for the reply. yeah this is strange, seems to have happened in that location and not others. (if I have time wouldn't mind testing out other kernel versions and maybe a bisect to grab this) -- Justin P. Mattock -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/