BUG: unable to handle kernel NULL pointer dereference at 00000000000000f0
IP: [<ffffffff8103db09>] __ticket_spin_lock+0x9/0x30
PGD 190780067 PUD 1b45ec067 PMD 0 
Oops: 0002 [#1] SMP 
CPU 1 
Modules linked in: nls_iso8859_1 nls_cp437 vfat fat uas usb_storage pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) vesafb bnep rfcomm parport_pc ppdev snd_hda_codec_hdmi ir_lirc_codec lirc_dev ir_mce_kbd_decoder ir_sony_decoder ir_jvc_decoder nvidia(P) snd_hda_codec_realtek ir_rc6_decoder usblp snd_usb_audio snd_hda_intel ir_rc5_decoder snd_hda_codec ir_nec_decoder binfmt_misc snd_pcm rc_rc6_mce mceusb rc_core btusb bluetooth uvcvideo videodev v4l2_compat_ioctl32 snd_hwdep snd_usbmidi_lib snd_seq_midi snd_rawmidi snd_seq_midi_event joydev snd_seq snd_timer snd_seq_device i7core_edac snd edac_core soundcore psmouse snd_page_alloc asus_atk0110 mac_hid serio_raw mxm_wmi wmi lp parport usbhid hid firewire_ohci firewire_core crc_itu_t sky2

Pid: 2618, comm: gvfsd-trash Tainted: P           O 3.2.0-23-generic #36-Ubuntu System manufacturer System Product Name/P6X58D-E
RIP: 0010:[<ffffffff8103db09>]  [<ffffffff8103db09>] __ticket_spin_lock+0x9/0x30
RSP: 0018:ffff88018cd97e18  EFLAGS: 00010206
RAX: 0000000000010000 RBX: 00000000000000f0 RCX: ffff8801bffca000
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 00000000000000f0
RBP: ffff88018cd97e18 R08: e000000000000000 R09: 5038000000000000
R10: ff715d988084ea07 R11: 0000000000000206 R12: ffff880070a28310
R13: ffff880070a28408 R14: ffff8801b156a164 R15: ffff880070a28310
FS:  00007f20baab87c0(0000) GS:ffff8801bfc20000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000f0 CR3: 00000001b3baf000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process gvfsd-trash (pid: 2618, threadinfo ffff88018cd96000, task ffff8801a55c44d0)
Stack:
 ffff88018cd97e28 ffffffff8165c46e ffff88018cd97e48 ffffffffa0eb6462
 ffff880070a28310 ffff880070a28310 ffff88018cd97e68 ffffffffa0eb6bcb
 ffff88018cd97e68 ffffffffa0eba6c0 ffff88018cd97e98 ffffffff81192448
Call Trace:
 [<ffffffff8165c46e>] _raw_spin_lock+0xe/0x20
 [<ffffffffa0eb6462>] fat_detach+0x32/0x80 [fat]
 [<ffffffffa0eb6bcb>] fat_evict_inode+0x5b/0x70 [fat]
 [<ffffffff81192448>] evict+0xb8/0x1c0
 [<ffffffff81192638>] iput_final+0xe8/0x210
 [<ffffffff8119279e>] iput+0x3e/0x50
 [<ffffffff811b7950>] fsnotify_destroy_mark+0x170/0x180
 [<ffffffff811b994a>] sys_inotify_rm_watch+0x7a/0xd0
 [<ffffffff81664a82>] system_call_fastpath+0x16/0x1b
Code: 00 00 48 c7 c1 11 d9 03 81 48 c7 c2 0e d9 03 81 e9 dd fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 55 b8 00 00 01 00 48 89 e5 <f0> 0f c1 07 89 c2 c1 ea 10 66 39 c2 74 13 66 0f 1f 84 00 00 00 
RIP  [<ffffffff8103db09>] __ticket_spin_lock+0x9/0x30
 RSP <ffff88018cd97e18>
CR2: 00000000000000f0
---[ end trace a9291495179fa328 ]---