From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <40CDE884.8080809@plausible.org> From: Andy Ross MIME-Version: 1.0 To: bluez-devel@lists.sourceforge.net Content-Type: multipart/mixed; boundary="------------030002070806090604000206" Subject: [Bluez-devel] Oops in hci_usb when disconnecting built-in controller Sender: bluez-devel-admin@lists.sourceforge.net Errors-To: bluez-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Date: Mon, 14 Jun 2004 11:03:48 -0700 This is a multi-part message in MIME format. --------------030002070806090604000206 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit I have a new laptop, a Compaq R3000Z (AMD64, but currently running a 32 bit kernel). It has a built-in USB Bluetooth device, which identifies itself as ID 049f:0086. It works great with the hci_usb driver from boot. The laptop also has a "wireless enable/disable" switch, which is a hardware switch that when pressed drops power to the internal 802.11b antenna and (apparently) disconnects the HCI controller from the USB bus. When I use this, I get a 100% repeatable oops in the hci_usb driver. The driver then locks up and refuses to unload, although the rest of the kernel appears to be unaffected. Andy --------------030002070806090604000206 Content-Type: text/plain; name="usb-oops.txt" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="usb-oops.txt" usb 3-2: USB disconnect, address 3 Unable to handle kernel NULL pointer dereference at virtual address 00000068 printing eip: c018661f *pde = 00000000 Oops: 0002 [#1] CPU: 0 EIP: 0060:[] Tainted: P EFLAGS: 00010246 (2.6.6) EIP is at sysfs_hash_and_remove+0x2f/0x9b eax: 00000000 ebx: 00000068 ecx: 00000068 edx: ffff0001 esi: 00000000 edi: f7550520 ebp: f88a39c0 esp: c1981e48 ds: 007b es: 007b ss: 0068 Process khubd (pid: 5, threadinfo=c1980000 task=f7f7a030) Stack: c02f541a 00000077 f88a39c0 f7134530 f88a3960 c020f3fa f7550520 c0307cda c020f7fd f7134530 00000042 f88a39ac f7134400 f7134400 f72a97a4 f7428c24 f889bd13 f7134530 f72a98a4 f73652e8 f887b855 f7134400 f72a9894 f887c8c0 Call Trace: [] class_device_dev_unlink+0x1a/0x20 [] class_device_del+0x8d/0xd0 [] hci_unregister_dev+0x13/0x80 [bluetooth] [] hci_usb_disconnect+0x35/0x80 [hci_usb] [] usb_unbind_interface+0x7a/0x80 [] device_release_driver+0x64/0x70 [] bus_remove_device+0x73/0xc0 [] device_del+0x6c/0xb0 [] device_unregister+0x13/0x30 [] usb_disable_device+0x6f/0xb0 [] usb_disconnect+0xbb/0x110 [] hub_port_connect_change+0x27f/0x290 [] hub_port_status+0x43/0xb0 [] hub_events+0x2a0/0x300 [] hub_thread+0x2d/0xf0 [] default_wake_function+0x0/0x20 [] hub_thread+0x0/0xf0 [] kernel_thread_helper+0x5/0x14 Code: ff 4e 68 78 67 89 3c 24 8b 44 24 1c 89 44 24 04 e8 3c ff ff --------------030002070806090604000206-- ------------------------------------------------------- This SF.Net email is sponsored by The 2004 JavaOne(SM) Conference Learn from the experts at JavaOne(SM), Sun's Worldwide Java Developer Conference, June 28 - July 1 at the Moscone Center in San Francisco, CA REGISTER AND SAVE! http://java.sun.com/javaone/sf Priority Code NWMGYKND _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel