Apr 23 21:56:13 linux kernel: usb 2-1: usb_disable_device nuking non-ep0 URBs
Apr 23 21:56:13 linux kernel: usb 2-1: unregistering interface 2-1:1.0
Apr 23 21:56:13 linux kernel: drivers/usb/core/usb.c: usb_hotplug
Apr 23 21:56:13 linux kernel: usb 2-1: registering 2-1:1.0 (config #1, interface 0)
Apr 23 21:56:13 linux kernel: drivers/usb/core/usb.c: usb_hotplug
Apr 23 21:56:13 linux kernel: usb 2-1: usb_disable_device nuking non-ep0 URBs
Apr 23 21:56:13 linux kernel: ohci_hcd 0000:00:02.3: shutdown urb dc97d0c0 pipe c0018200 ep3out-bulk
Apr 23 21:56:13 linux kernel: usbfs: USBDEVFS_BULK failed dev 2 ep 0x3 len 5 ret -108
Apr 23 21:56:13 linux kernel: usb 2-1: unregistering interface 2-1:1.0
Apr 23 21:56:13 linux kernel: drivers/usb/core/usb.c: usb_hotplug
Apr 23 21:56:13 linux kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000004
Apr 23 21:56:13 linux kernel:  printing eip:
Apr 23 21:56:13 linux kernel: e08f12c2
Apr 23 21:56:13 linux kernel: *pde = 00000000
Apr 23 21:56:13 linux kernel: Oops: 0000 [#1]
Apr 23 21:56:13 linux kernel: PREEMPT 
Apr 23 21:56:13 linux kernel: CPU:    0
Apr 23 21:56:13 linux kernel: EIP:    0060:[__crc_sleep_on+2586755/10722792]    Tainted: PF 
Apr 23 21:56:13 linux kernel: EFLAGS: 00010246   (2.6.5) 
Apr 23 21:56:13 linux kernel: EIP is at findintfep+0x32/0xb0 [usbcore]
Apr 23 21:56:13 linux kernel: eax: 00000000   ebx: 00000000   ecx: 00000000   edx: 00000000
Apr 23 21:56:13 linux kernel: esi: dc97da40   edi: ffffffea   ebp: bfffa7a0   esp: dddcbeac
Apr 23 21:56:13 linux kernel: ds: 007b   es: 007b   ss: 0068
Apr 23 21:56:13 linux kernel: Process scanimage (pid: 2087, threadinfo=dddca000 task=dcf6b120)
Apr 23 21:56:13 linux kernel: Stack: dddcbec8 00000000 df678a40 00000000 00000000 dc97da40 dddcbf00 bfffa7a0 
Apr 23 21:56:13 linux kernel:        e08f1961 df6f5400 00000003 00000010 c0147546 df1e6b80 dea6b840 df6f5400 
Apr 23 21:56:13 linux kernel:        00000000 dbc95ad0 dc2c2400 00000002 df1e6b80 00000003 00000005 00007530 
Apr 23 21:56:13 linux kernel: Call Trace:
Apr 23 21:56:13 linux kernel:  [__crc_sleep_on+2588450/10722792] proc_bulk+0x71/0x320 [usbcore]
Apr 23 21:56:13 linux kernel:  [handle_mm_fault+214/368] handle_mm_fault+0xd6/0x170
Apr 23 21:56:13 linux kernel:  [__crc_sleep_on+2595205/10722792] usbdev_ioctl+0x274/0x330 [usbcore]
Apr 23 21:56:13 linux kernel:  [schedule+812/1440] schedule+0x32c/0x5a0
Apr 23 21:56:13 linux kernel:  [inflate_codes+786/1184] inflate_codes+0x312/0x4a0
Apr 23 21:56:13 linux kernel:  [file_ioctl+116/432] file_ioctl+0x74/0x1b0
Apr 23 21:56:13 linux kernel:  [inflate_codes+786/1184] inflate_codes+0x312/0x4a0
Apr 23 21:56:13 linux kernel:  [inflate_codes+786/1184] inflate_codes+0x312/0x4a0
Apr 23 21:56:13 linux kernel:  [sys_ioctl+289/656] sys_ioctl+0x121/0x290
Apr 23 21:56:13 linux kernel:  [inflate_codes+786/1184] inflate_codes+0x312/0x4a0
Apr 23 21:56:13 linux kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
Apr 23 21:56:13 linux kernel:  [inflate_codes+786/1184] inflate_codes+0x312/0x4a0
Apr 23 21:56:13 linux kernel: 
Apr 23 21:56:13 linux kernel: Code: 0f b6 40 04 39 44 24 0c 73 5c 89 44 24 08 8b 4c 24 0c 31 ed 
Apr 23 21:56:14 linux kernel:  <7>usb 2-1: registering 2-1:1.0 (config #1, interface 0)
Apr 23 21:56:14 linux kernel: drivers/usb/core/usb.c: usb_hotplug