Return-path: Received: from mail-ey0-f174.google.com ([209.85.215.174]:40522 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759827Ab2FHBfO (ORCPT ); Thu, 7 Jun 2012 21:35:14 -0400 Received: by eaak11 with SMTP id k11so642750eaa.19 for ; Thu, 07 Jun 2012 18:35:12 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: <20120607161818.241F322210D14@mail.opensource.intel.com> Date: Thu, 7 Jun 2012 18:35:12 -0700 Message-ID: (sfid-20120608_033553_474728_97BF7717) Subject: Re: [Bug 2338] unstable roaming (WPA2 Enterprise encryption + domain user/pass authentication) From: cheng renquan To: Meenakshi V Cc: ilw@linux.intel.com, linux-wireless@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, Jun 7, 2012 at 6:33 PM, cheng renquan wrote: > trace.dat with v3.4.0, just recorded; I saw an Ooops in cfg80211 [ 4762.047944] ------------[ cut here ]------------ [ 4762.047964] WARNING: at net/wireless/mlme.c:490 cfg80211_mlme_disassoc+0x10e/0x120 [cfg80211]() [ 4762.047968] Hardware name: 2522BF3 [ 4762.047970] Modules linked in: ipv6 fuse uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core iwlwifi sr_mod cdrom videodev mac80211 nouveau cfg80211 mxm_wmi drm_kms_helper e1000e ttm thinkpad_acpi wmi [ 4762.047994] Pid: 2129, comm: wpa_supplicant Tainted: G W 3.4.0 #21 [ 4762.047998] Call Trace: [ 4762.048006] [] warn_slowpath_common+0x7f/0xc0 [ 4762.048012] [] warn_slowpath_null+0x1a/0x20 [ 4762.048022] [] cfg80211_mlme_disassoc+0x10e/0x120 [cfg80211] [ 4762.048030] [] ? mutex_lock+0x1d/0x50 [ 4762.048041] [] nl80211_disassociate+0xb3/0xf0 [cfg80211] [ 4762.048049] [] genl_rcv_msg+0x250/0x2d0 [ 4762.048053] [] ? genl_rcv+0x40/0x40 [ 4762.048058] [] netlink_rcv_skb+0xa1/0xb0 [ 4762.048063] [] genl_rcv+0x25/0x40 [ 4762.048068] [] netlink_unicast+0x19d/0x1f0 [ 4762.048076] [] ? __pollwait+0xf0/0xf0 [ 4762.048081] [] netlink_sendmsg+0x2d5/0x340 [ 4762.048086] [] ? __pollwait+0xf0/0xf0 [ 4762.048092] [] sock_sendmsg+0xf0/0x130 [ 4762.048098] [] ? consume_skb+0x31/0x70 [ 4762.048106] [] ? packet_recvmsg+0xe4/0x520 [ 4762.048111] [] ? move_addr_to_kernel+0x5a/0xc0 [ 4762.048117] [] ? verify_iovec+0x56/0xd0 [ 4762.048121] [] __sys_sendmsg+0x3fe/0x410 [ 4762.048126] [] ? core_sys_select+0x2a1/0x350 [ 4762.048133] [] ? kmem_cache_free+0x20/0xf0 [ 4762.048139] [] ? __d_free+0x4b/0x70 [ 4762.048147] [] ? ktime_get_ts+0xb0/0xf0 [ 4762.048152] [] ? poll_select_copy_remaining+0xf3/0x140 [ 4762.048157] [] sys_sendmsg+0x49/0x90 [ 4762.048165] [] system_call_fastpath+0x16/0x1b [ 4762.048169] ---[ end trace 8bbe2208f47c00d4 ]--- [ 4768.283282] wlan0: authenticate with 00:17:df:aa:01:ef [ 4768.314368] wlan0: direct probe to 00:17:df:aa:01:ef (try 1/3) [ 4768.514292] wlan0: direct probe to 00:17:df:aa:01:ef (try 2/3) [ 4768.714887] wlan0: direct probe to 00:17:df:aa:01:ef (try 3/3) [ 4768.915540] wlan0: authentication with 00:17:df:aa:01:ef timed out [ 4768.929227] iwlwifi 0000:03:00.0: ACTIVATE a non DRIVER active station id 0 addr 00:17:df:aa:01:ef [ 4889.387064] wlan0: authenticate with 6c:9c:ed:ec:fc:df [ 4889.391505] wlan0: send auth to 6c:9c:ed:ec:fc:df (try 1/3) [ 4889.392784] wlan0: authenticated [ 4889.393877] wlan0: associate with 6c:9c:ed:ec:fc:df (try 1/3) [ 4889.396689] wlan0: RX AssocResp from 6c:9c:ed:ec:fc:df (capab=0x11 status=0 aid=4) [ 4889.396697] wlan0: associated