And the mandatory mail about what goes oops on a new kernel:

[booting...]
ehci_hcd 0000:00:1d.7: USB 2.0 enabled, EHCI 1.00, driver 2003-Dec-29
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 6 ports detected
usb 3-1: USB disconnect, address 2
Unable to handle kernel NULL pointer dereference at virtual address 00000070
 printing eip:
c017efc1
*pde = 00000000
Oops: 0002 [#1]
PREEMPT 
CPU:    0
EIP:    0060:[<c017efc1>]    Not tainted VLI
EFLAGS: 00010246   (2.6.5-mm6) 
EIP is at sysfs_hash_and_remove+0x2b/0x90
eax: 00000000   ebx: 00000070   ecx: 00000070   edx: 00000000
esi: 00000000   edi: c02bc0f4   ebp: f5fd4e70   esp: f5fd4e60
ds: 007b   es: 007b   ss: 0068
Process khubd (pid: 5218, threadinfo=f5fd4000 task=f5efa3b0)
Stack: f5925a80 f8962ac0 f5b27530 f8962a60 f5fd4e8c c01f6406 f8962ac0 f8962aac 
       f5b27400 f5b27400 f5f6c690 f5fd4e98 f8959003 f5f6c280 f5fd4eb4 f8935c52 
       f88deb59 f5f6d800 f5f6c680 f5f6c680 f8937240 f5fd4ec4 f88d90c6 f5f6c690 
Call Trace:
 [<c01f6406>] class_device_del+0x88/0xb9
 [<f8959003>] hci_unregister_dev+0xb/0x94 [bluetooth]
 [<f8935c52>] hci_usb_disconnect+0x30/0x6e [hci_usb]
 [<f88deb59>] usb_disable_interface+0x2f/0x3f [usbcore]
 [<f88d90c6>] usb_unbind_interface+0x63/0x65 [usbcore]
 [<c01f595f>] device_release_driver+0x59/0x5b
 [<c01f5a89>] bus_remove_device+0x64/0xa4
 [<c01f4bb1>] device_del+0x65/0x8e
 [<c01f4be5>] device_unregister+0xb/0x14
 [<f88debd6>] usb_disable_device+0x68/0x9b [usbcore]
 [<f88d9b36>] usb_disconnect+0xb6/0xfe [usbcore]
 [<f88dbc03>] hub_port_connect_change+0x260/0x265 [usbcore]
 [<f88db5ac>] hub_port_status+0x39/0x9f [usbcore]
 [<f88dbee9>] hub_events+0x2e1/0x353 [usbcore]
 [<f88dbf8b>] hub_thread+0x30/0xdd [usbcore]
 [<c0115610>] default_wake_function+0x0/0xc
 [<f88dbf5b>] hub_thread+0x0/0xdd [usbcore]
 [<c0102269>] kernel_thread_helper+0x5/0xb

Code: 55 89 e5 83 ec 10 89 5d f4 89 7d fc 89 45 f0 89 75 f8 89 d7 ba 77 00 00 00 8b 70 08 b8 49 90 2a c0 8d 5e 70 e8 99 72 f9 ff 89 d9 <ff> 4e 70 78 60 8b 45 f0 89 fa e8 5f ff ff ff 3d 18 fc ff ff 89 
 <7>PCI: Setting latency timer of device 0000:00:1f.5 to 64
[continuing...]

My .config: