Unable to handle kernel paging request at virtual address fffffff4
 Printing eip:
c02b87e4
*pde = 00002067
*pte = 00000000
Oops: 0000 [#1]
PREEMPT
CPU:	0
EIP:	0060:[<c02b87e4>]	Not tainted VLI
EFLAGS:	00010283
EIP is at usb_device_suspend+0x24/0x41
eax: 00000000	ebx: dfc32498	ecx: dfc32480	edx: ffffffe0
esi: 00000000	edi: c0360b26	ebp: 00000002	esp: dd297edc
ds: 007b	es: 007b	ss: 0068
Process bash (pid: 3082, threadinfo=dd296000 task=df9af310)
Stack: 00000400 c0351409 c026c66c dfc32498 00000003 00000000 00000003 c026c6ca
       dfc32498 00000003 fffffff0 00000003 c013a005 00000003 00000000 c013a074
       00000001 00000000 c0139631 dceff810 00000000 dd297f56 c013af15 00000003
Call Trace:
 [<c026c66c>] subspend_device+0xfc/0x103
 [<c026c6ca>] device_suspend+0x57/0x79
 [<c013a005>] prepare+0x39/0x9c
 [<c013a074>] pm_suspend_disk+0xc/0xbc
 [<c0139631>] enter_state+0x9c/0xa0
 [<c013af15>] software_suspend+0x3b/0x42
 [<c0228621>] acpi_system_write_sleep+0xb4/0xcb
 [<c0158418>] vfs_write+0xbc/0x127
 [<c0158528>] sys_write+0x42/0x63
 [<c0336d33>] syscall_call+0x7/0xb

Code: 49 36 c0 eb ce c3 c3 83 ec 08 8b 54 24 0c 8b 42 70 3d a0 4e 3d c0 74 1a 81
 7a 74 84 8f 45 c0 74 11 8d 4a e8 89 c2 83 ea 20 74 07 <8b> 42 14 85 c0 75 06 31
 c0 83 c4 08 c3 8b 44 24 10 89 0c 24 89