From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753837AbYCIRCw (ORCPT ); Sun, 9 Mar 2008 13:02:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750818AbYCIRCp (ORCPT ); Sun, 9 Mar 2008 13:02:45 -0400 Received: from smtp4-g19.free.fr ([212.27.42.30]:51885 "EHLO smtp4-g19.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750778AbYCIRCo (ORCPT ); Sun, 9 Mar 2008 13:02:44 -0400 Message-ID: <1205082155.47d4182bae5af@imp.free.fr> Date: Sun, 09 Mar 2008 18:02:35 +0100 From: bruno.roussel@free.fr To: linux-kernel@vger.kernel.org Subject: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT User-Agent: Internet Messaging Program (IMP) 3.2.8 X-Originating-IP: 82.249.157.153 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi ! I have this report in dmesg : saa7146_vv: saa7146 (0): registered device video0 [v4l2] saa7146_vv: saa7146 (0): registered device vbi0 [v4l2] usb-storage: device found at 2 usb-storage: waiting for device to settle before scanning dvb-usb: found a 'Hauppauge WinTV-NOVA-T usb2' in warm state. dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. DVB: registering new adapter (Hauppauge WinTV-NOVA-T usb2) dvb-usb: MAC address: 00:0d:fe:00:00:00 DVB: registering frontend 1 (DiBcom 3000MC/P)... ============================================= [ INFO: possible recursive locking detected ] 2.6.24.2-1mdv #1 --------------------------------------------- modprobe/2082 is trying to acquire lock: (&adap->bus_lock){--..}, at: [] i2c_transfer+0x2c/0x4b [i2c_core] but task is already holding lock: (&adap->bus_lock){--..}, at: [] i2c_transfer+0x2c/0x4b [i2c_core] other info that might help us debug this: 1 lock held by modprobe/2082: #0: (&adap->bus_lock){--..}, at: [] i2c_transfer+0x2c/0x4b [i2c_core] stack backtrace: Pid: 2082, comm: modprobe Not tainted 2.6.24.2-1mdv #1 [] show_trace_log_lvl+0x1a/0x2f [] show_trace+0x12/0x14 [] dump_stack+0x6a/0x70 [] __lock_acquire+0x16b/0xc32 [] lock_acquire+0x70/0x92 [] mutex_lock_nested+0xf9/0x2a4 [] i2c_transfer+0x2c/0x4b [i2c_core] [] dibx000_i2c_gated_tuner_xfer+0x172/0x18c [dibx000_common] [] i2c_transfer+0x39/0x4b [i2c_core] [] mt2060_readreg+0x48/0x68 [mt2060] [] mt2060_attach+0x49/0x1ef [mt2060] [] dibusb_dib3000mc_tuner_attach+0x145/0x1fb [dvb_usb_dibusb_common] [] dvb_usb_adapter_frontend_init+0xc4/0xe8 [dvb_usb] [] dvb_usb_device_init+0x3e8/0x4ce [dvb_usb] [] nova_t_probe+0x1c/0x1e [dvb_usb_nova_t_usb2] [] usb_probe_interface+0xd5/0x112 [usbcore] [] driver_probe_device+0xca/0x14d [] __driver_attach+0x4a/0x7f [] bus_for_each_dev+0x38/0x5a [] driver_attach+0x19/0x1b [] bus_add_driver+0x76/0x194 [] driver_register+0x67/0x6c [] usb_register_driver+0x7e/0xe5 [usbcore] [] nova_t_module_init+0x1b/0x38 [dvb_usb_nova_t_usb2] [] sys_init_module+0x12c6/0x1394 [] sysenter_past_esp+0x6b/0xc9 ======================= input: IR-receiver inside an USB DVB receiver as /class/input/input2 dvb-usb: schedule remote query interval to 100 msecs. dvb-usb: Hauppauge WinTV-NOVA-T usb2 successfully initialized and connected. usbcore: registered new interface driver dvb_usb_nova_t_usb2 DVB: registering frontend 0 (ST STV0299 DVB-S)... input: DVB on-card IR receiver as /class/input/input3 dvb-ttpci: found av7110-0.