Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753380Ab3JUMJP (ORCPT ); Mon, 21 Oct 2013 08:09:15 -0400 Received: from services.gouders.net ([141.101.32.176]:39456 "EHLO services.gouders.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753085Ab3JUMJJ (ORCPT ); Mon, 21 Oct 2013 08:09:09 -0400 From: Dirk Gouders To: Simon Wunderlich Cc: Mathias Kretschmer , Johannes Berg , Linux Kernel Subject: [BUG bisected] WARNING: CPU: 0 PID: 1550 at net/wireless/chan.c:373 cfg80211_chandef_usable+0x30/0x15f() User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) Date: Mon, 21 Oct 2013 14:09:40 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3091 Lines: 49 Hello Simon, all, Recently, I noticed many traces (find a sample attached) in situations when wpa_supplicant is running but no appropriate access-point available. I started a bisect and ended at commit 3aede78aad2a7e (mac80211: change IBSS channel state to chandef). Please let me know if you need more information to inspect this problem. Best regards, Dirk ------------------------------------------------------------------------ Oct 21 13:56:06 lena kernel: ------------[ cut here ]------------ Oct 21 13:56:06 lena kernel: WARNING: CPU: 0 PID: 1550 at net/wireless/chan.c:373 cfg80211_chandef_usable+0x30/0x15f() Oct 21 13:56:06 lena kernel: Modules linked in: brcmsmac cordic brcmutil bcma Oct 21 13:56:06 lena kernel: CPU: 0 PID: 1550 Comm: kworker/u4:5 Tainted: G W 3.12.0-rc6+ #20 Oct 21 13:56:06 lena kernel: Hardware name: LENOVO 08946MG/MoutCook, BIOS 33CN14WW 05/10/2010 Oct 21 13:56:06 lena kernel: Workqueue: phy0 ieee80211_iface_work Oct 21 13:56:06 lena kernel: 0000000000000000 0000000000000009 ffffffff8161e3c7 0000000000000000 Oct 21 13:56:06 lena kernel: ffffffff81068b00 ffff88006f8be7c0 ffffffff815e79e4 0000000000000000 Oct 21 13:56:06 lena kernel: 000000000000000f ffff8800703e5dc2 ffff8800703e5d50 ffff88006f8bc200 Oct 21 13:56:06 lena kernel: Call Trace: Oct 21 13:56:06 lena kernel: [] ? dump_stack+0x50/0x80 Oct 21 13:56:06 lena kernel: [] ? warn_slowpath_common+0x73/0x8b Oct 21 13:56:06 lena kernel: [] ? cfg80211_chandef_usable+0x30/0x15f Oct 21 13:56:06 lena kernel: [] ? cfg80211_chandef_usable+0x30/0x15f Oct 21 13:56:06 lena kernel: [] ? __ieee80211_sta_join_ibss+0x162/0x6e2 Oct 21 13:56:06 lena kernel: [] ? printk+0x4f/0x54 Oct 21 13:56:06 lena kernel: [] ? ieee80211_sta_create_ibss+0xc8/0xce Oct 21 13:56:06 lena kernel: [] ? ieee80211_ibss_work+0x255/0x3c5 Oct 21 13:56:06 lena kernel: [] ? process_one_work+0x1c7/0x2e6 Oct 21 13:56:06 lena kernel: [] ? pwq_activate_delayed_work+0x1e/0x28 Oct 21 13:56:06 lena kernel: [] ? worker_thread+0x1cb/0x2c4 Oct 21 13:56:06 lena kernel: [] ? rescuer_thread+0x25c/0x25c Oct 21 13:56:06 lena kernel: [] ? kthread+0xad/0xb5 Oct 21 13:56:06 lena kernel: [] ? kthread_create_on_node+0xc1/0x115 Oct 21 13:56:06 lena kernel: [] ? kthread_freezable_should_stop+0x3b/0x3b Oct 21 13:56:06 lena kernel: [] ? ret_from_fork+0x7c/0xb0 Oct 21 13:56:06 lena kernel: [] ? kthread_freezable_should_stop+0x3b/0x3b Oct 21 13:56:06 lena kernel: ---[ end trace ade89af8f1b5d90f ]--- ------------------------------------------------------------------------ -- 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/