Messages in this thread | | | Subject | 2.6.6-rc3 still oops on unplugging usb bluetooth bcm203x dongle | From | Soeren Sonnenburg <> | Date | Thu, 29 Apr 2004 08:05:09 +0200 |
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Hi...
I still get:
usb 2-1: USB disconnect, address 3 Oops: kernel access of bad area, sig: 11 [#1] NIP: C02134B4 LR: F205D414 SP: EFE87DD0 REGS: efe87d20 TRAP: 0600 Not tainted MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 DAR: 6B6B6BB7, DSISR: 00000120 TASK = effa4030[5] 'khubd' THREAD: efe86000Last syscall: -1 GPR00: FFFF0001 EFE87DD0 EFFA4030 EE77C828 6B6B6B6B 00000000 EB8EE83C 00000000 GPR08: 00001388 EF0EE858 00010C00 C0213480 82008022 00000000 00000000 00000000 GPR16: 00000000 00000000 00000000 00000000 00000000 00220000 00230000 00000000 GPR24: 00000000 C0400000 00000001 6B6B6B6B 6B6B6BB7 EF07B8A0 EE77C828 EE77C6FC NIP [c02134b4] class_device_del+0x34/0x140 LR [f205d414] hci_unregister_sysfs+0x14/0x24 [bluetooth] Call trace: [f205d414] hci_unregister_sysfs+0x14/0x24 [bluetooth] [f205876c] hci_unregister_dev+0x18/0xb0 [bluetooth] [f204cd94] hci_usb_disconnect+0x48/0x90 [hci_usb] [c0277a24] usb_unbind_interface+0x88/0x8c [c02125a4] device_release_driver+0x84/0x88 [c0212744] bus_remove_device+0x74/0xd0 [c0211120] device_del+0xa8/0x114 [c02111a4] device_unregister+0x18/0x30 [c027e248] usb_disable_device+0x9c/0xd8 [c0278768] usb_disconnect+0x9c/0x134 [c027ab14] hub_port_connect_change+0x294/0x298 [c027adec] hub_events+0x2d4/0x354 [c027aea8] hub_thread+0x3c/0xf0 [c00090b0] kernel_thread+0x44/0x60
Sometimes it helps to hciconfig hci0 down the bluetooth dongle + stop all programs + rmmod them... However also the rmmod hci_usb rfcomm bluetooth firmware_class bcm203x l2cap
is very likely to cause the same oops...
Yes, this is on powerpc but quite a number of people have the same issue on x86 (with 2.6.5 at least... and thats around the time this oops on unplugging appeared).
Any ideas ? Soeren
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