BUG: unable to handle kernel NULL pointer dereference at 00000000000000f0
IP: [<ffffffff8103db09>] __ticket_spin_lock+0x9/0x30
PGD 71e8c067 PUD 59eea067 PMD 0 
Oops: 0002 [#1] SMP 
CPU 3 
Modules linked in: nls_iso8859_1 nls_cp437 vfat fat joydev parport_pc ppdev dm_crypt bnep rfcomm bluetooth binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek uvcvideo videodev v4l2_compat_ioctl32 arc4 dm_multipath snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq psmouse serio_raw snd_timer snd_seq_device jmb38x_ms memstick snd rtl8192ce rtl8192c_common mac_hid rtlwifi mac80211 cfg80211 soundcore snd_page_alloc mei(C) lp parport dm_raid45 xor dm_mirror dm_region_hash dm_log btrfs zlib_deflate libcrc32c usb_storage uas i915 jme drm_kms_helper sdhci_pci sdhci drm i2c_algo_bit wmi video

Pid: 1915, comm: gvfsd-trash Tainted: G         C   3.2.0-19-generic #30-Ubuntu System76, Inc. Lemur Ultra/Lemur Ultra
RIP: 0010:[<ffffffff8103db09>]  [<ffffffff8103db09>] __ticket_spin_lock+0x9/0x30
RSP: 0018:ffff88006ec5de18  EFLAGS: 00010206
RAX: 0000000000010000 RBX: 00000000000000f0 RCX: ffff8801005ca000
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 00000000000000f0
RBP: ffff88006ec5de18 R08: e000000000000000 R09: 5038000000000000
R10: ff8d989171c4ea07 R11: 0000000000000000 R12: ffff880054678310
R13: ffff880054678408 R14: ffff880071872364 R15: ffff880054678310
FS:  00007fd3be84d7c0(0000) GS:ffff880100380000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000f0 CR3: 000000006154d000 CR4: 00000000000406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process gvfsd-trash (pid: 1915, threadinfo ffff88006ec5c000, task ffff88006211adc0)
Stack:
 ffff88006ec5de28 ffffffff8165b28e ffff88006ec5de48 ffffffffa04c0462
 ffff880054678310 ffff880054678310 ffff88006ec5de68 ffffffffa04c0bcb
 ffff88006ec5de68 ffffffffa04c46c0 ffff88006ec5de98 ffffffff81191b68
Call Trace:
 [<ffffffff8165b28e>] _raw_spin_lock+0xe/0x20
 [<ffffffffa04c0462>] fat_detach+0x32/0x80 [fat]
 [<ffffffffa04c0bcb>] fat_evict_inode+0x5b/0x70 [fat]
 [<ffffffff81191b68>] evict+0xb8/0x1c0
 [<ffffffff81191d58>] iput_final+0xe8/0x210
 [<ffffffff81191ebe>] iput+0x3e/0x50
 [<ffffffff811b7030>] fsnotify_destroy_mark+0x170/0x180
 [<ffffffff811b902a>] sys_inotify_rm_watch+0x7a/0xd0
 [<ffffffff81663882>] 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 <ffff88006ec5de18>
CR2: 00000000000000f0
---[ end trace 0c2889dffa730eb9 ]---