Return-path: Received: from nf-out-0910.google.com ([64.233.182.190]:65160 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753886AbYG2F40 (ORCPT ); Tue, 29 Jul 2008 01:56:26 -0400 Received: by nf-out-0910.google.com with SMTP id d3so1621506nfc.21 for ; Mon, 28 Jul 2008 22:56:24 -0700 (PDT) Date: Tue, 29 Jul 2008 13:57:31 +0800 From: Dave Young To: linux-kernel@vger.kernel.org Cc: linux-wireless@vger.kernel.org Subject: [BUG] wireless : cpu stuck for 61s Message-ID: <20080729055731.GA3265@darkstar> (sfid-20080729_075630_082047_A76939B2) Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: While set my wlan0 to ad-hoc mode and then set the essid to something, this bug triggered. I suspect it's related to debugfs or mutex? But I'm not sure. Jul 29 13:01:46 darkstar kernel: [ 8033.736493] BUG: soft lockup - CPU#0 stuck for 61s! [events/0:9] Jul 29 13:01:46 darkstar kernel: [ 8033.736493] Modules linked in: radeonfb fb_ddc i2c_algo_bit snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss rfcomm l2cap bluetooth vfat fuse rtc_cmos rtc_core psmouse intel_agp pl2303 rtc_lib ath5k e100 i2c_i801 serio_raw usbserial agpgart 3c59x mii snd_hda_intel snd_pcm mac80211 snd_timer snd_page_alloc cfg80211 snd_hwdep snd soundcore thermal processor button thermal_sys evdev sg Jul 29 13:01:46 darkstar kernel: [ 8033.736493] Jul 29 13:01:46 darkstar kernel: [ 8033.736493] Pid: 9, comm: events/0 Tainted: G W (2.6.26-smp #3) Jul 29 13:01:46 darkstar kernel: [ 8033.736493] EIP: 0060:[] EFLAGS: 00000246 CPU: 0 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] EIP is at mutex_lock_nested+0x1b3/0x280 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] EAX: 00000000 EBX: f7bf5284 ECX: f7c7e000 EDX: f7bf52a8 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] ESI: f7bf5288 EDI: 00000246 EBP: f7c7fedc ESP: f7c7fe9c Jul 29 13:01:46 darkstar kernel: [ 8033.736493] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] CR0: 8005003b CR2: b800c5ac CR3: 36e71000 CR4: 000006d0 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] DR6: ffff0ff0 DR7: 00000400 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] ? debugfs_create_file+0x46/0x210 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] ? debugfs_create_file+0x46/0x210 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] debugfs_create_file+0x46/0x210 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] debugfs_create_dir+0x21/0x30 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] ieee80211_sta_debugfs_add+0x2d/0x150 [mac80211] Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] sta_info_debugfs_add_work+0x89/0x130 [mac80211] Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] ? rate_control_pid_add_sta_debugfs+0x0/0x30 [mac80211] Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] run_workqueue+0x156/0x1d0 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] ? run_workqueue+0x102/0x1d0 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] ? sta_info_debugfs_add_work+0x0/0x130 [mac80211] Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] worker_thread+0x88/0xe0 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] ? autoremove_wake_function+0x0/0x40 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] ? worker_thread+0x0/0xe0 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] kthread+0x42/0x70 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] ? kthread+0x0/0x70 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] [] kernel_thread_helper+0x7/0x14 Jul 29 13:01:46 darkstar kernel: [ 8033.736493] ======================= Jul 29 13:02:51 darkstar kernel: [ 8099.234898] BUG: soft lockup - CPU#0 stuck for 61s! [events/0:9] Jul 29 13:02:51 darkstar kernel: [ 8099.234898] Modules linked in: radeonfb fb_ddc i2c_algo_bit snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss rfcomm l2cap bluetooth vfat fuse rtc_cmos rtc_core psmouse intel_agp pl2303 rtc_lib ath5k e100 i2c_i801 serio_raw usbserial agpgart 3c59x mii snd_hda_intel snd_pcm mac80211 snd_timer snd_page_alloc cfg80211 snd_hwdep snd soundcore thermal processor button thermal_sys evdev sg Jul 29 13:02:51 darkstar kernel: [ 8099.234898] Jul 29 13:02:51 darkstar kernel: [ 8099.234898] Pid: 9, comm: events/0 Tainted: G W (2.6.26-smp #3) Jul 29 13:02:51 darkstar kernel: [ 8099.234898] EIP: 0060:[] EFLAGS: 00000246 CPU: 0 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] EIP is at mutex_lock_nested+0x1b3/0x280 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] EAX: 00000000 EBX: f7bf5284 ECX: f7c7e000 EDX: f7bf52a8 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] ESI: f7bf5288 EDI: 00000246 EBP: f7c7fedc ESP: f7c7fe9c Jul 29 13:02:51 darkstar kernel: [ 8099.234898] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] CR0: 8005003b CR2: b800c5ac CR3: 36e71000 CR4: 000006d0 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] DR6: ffff0ff0 DR7: 00000400 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] ? debugfs_create_file+0x46/0x210 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] ? debugfs_create_file+0x46/0x210 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] debugfs_create_file+0x46/0x210 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] debugfs_create_dir+0x21/0x30 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] ieee80211_sta_debugfs_add+0x2d/0x150 [mac80211] Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] sta_info_debugfs_add_work+0x89/0x130 [mac80211] Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] ? rate_control_pid_add_sta_debugfs+0x0/0x30 [mac80211] Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] run_workqueue+0x156/0x1d0 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] ? run_workqueue+0x102/0x1d0 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] ? sta_info_debugfs_add_work+0x0/0x130 [mac80211] Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] worker_thread+0x88/0xe0 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] ? autoremove_wake_function+0x0/0x40 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] ? worker_thread+0x0/0xe0 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] kthread+0x42/0x70 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] ? kthread+0x0/0x70 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] [] kernel_thread_helper+0x7/0x14 Jul 29 13:02:51 darkstar kernel: [ 8099.234898] =======================