Created attachment 669874 [details]
Output of 'dmesg'

Description of problem:
Got the bug/oops below when I ejected a USB thumb drive from nautilus.

Kernel is kernel-3.7.1-1.local2.fc19.x86_64: locally built with one patch to try to fix i915/drm hang/crash (https://bugs.freedesktop.org/show_bug.cgi?id=57136).

[  240.008512] VFS: Busy inodes after unmount of sdb1. Self-destruct in 5 seconds.  Have a nice day...
[  240.014533] BUG: unable to handle kernel NULL pointer dereference at 0000000000000118
[  240.016482] IP: [<ffffffff8163507e>] _raw_spin_lock+0xe/0x30
[  240.016482] PGD 86dcc067 PUD 86d51067 PMD 0 
[  240.018687] Oops: 0002 [#1] SMP 
[  240.018687] Modules linked in: vfat(F) fat(F) usb_storage(F) fuse(F) ip6table_filter(F) ip6_tables(F) ebtable_nat(F) ebtables(F) ipt_MASQUERADE(F) iptable_nat(F) nf_nat_ipv4(F) nf_nat(F) nf_conntrack_ipv4(F) nf_defrag_ipv4(F) xt_conntrack(F) nf_conntrack(F) xt_CHECKSUM(F) iptable_mangle(F) bridge(F) stp(F) llc(F) lockd(F) sunrpc(F) uvcvideo(F) videobuf2_vmalloc(F) videobuf2_memops(F) snd_usb_audio(F) videobuf2_core(F) videodev(F) snd_usbmidi_lib(F) snd_rawmidi(F) media(F) snd_hda_codec_conexant(F) arc4(F) iwldvm(F) snd_hda_intel(F) snd_hda_codec(F) snd_hwdep(F) snd_seq(F) snd_seq_device(F) btusb(F) snd_pcm(F) bluetooth(F) snd_page_alloc(F) snd_timer(F) mac80211(F) e1000e(F) thinkpad_acpi(F) iwlwifi(F) snd(F) cfg80211(F) rfkill(F) i2c_i801(F) iTCO_wdt(F) iTCO_vendor_support(F) lpc_ich(F) mei(F) soundcore(F)
[  240.022961]  mfd_core(F) tpm_tis(F) coretemp(F) tpm(F) tpm_bios(F) microcode(F) vhost_net(F) tun(F) macvtap(F) macvlan(F) kvm_intel(F) kvm(F) uinput(F) binfmt_misc(F) i915(F) i2c_algo_bit(F) drm_kms_helper(F) drm(F) i2c_core(F) wmi(F) video(F)
[  240.022961] CPU 0 
[  240.022961] Pid: 1994, comm: nautilus Tainted: GF            3.7.1-1.local2.fc19.x86_64 #1 LENOVO 74585FU/74585FU
[  240.022961] RIP: 0010:[<ffffffff8163507e>]  [<ffffffff8163507e>] _raw_spin_lock+0xe/0x30
[  240.022961] RSP: 0018:ffff880086c57e68  EFLAGS: 00010292
[  240.022961] RAX: 0000000000000100 RBX: ffff8800879a85d0 RCX: 0000000000000034
[  240.022961] RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000118
[  240.022961] RBP: ffff880086c57e68 R08: d038000000000000 R09: 00879a86681c0000
[  240.022961] R10: ff5a659b7e859a07 R11: 0000000000000001 R12: 0000000000000000
[  240.022961] R13: ffffffffa062b640 R14: ffffffffa062b640 R15: 0000000000000000
[  240.022961] FS:  00007f7b16b219c0(0000) GS:ffff88013bc00000(0000) knlGS:0000000000000000
[  240.022961] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  240.022961] CR2: 0000000000000118 CR3: 00000000aa91c000 CR4: 00000000000007f0
[  240.022961] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  240.022961] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  240.022961] Process nautilus (pid: 1994, threadinfo ffff880086c56000, task ffff8800369c4560)
[  240.022961] Stack:
[  240.022961]  ffff880086c57e88 ffffffffa0629487 ffff8800879a85d0 ffff8800879a86c8
[  240.022961]  ffff880086c57ea8 ffffffffa0629588 ffff8800b64d6d00 ffff8800879a85d0
[  240.022961]  ffff880086c57ed8 ffffffff811ae4d2 7fffffffffffffff ffff8800879a85d0
[  240.022961] Call Trace:
[  240.022961]  [<ffffffffa0629487>] fat_detach+0x27/0xd0 [fat]
[  240.022961]  [<ffffffffa0629588>] fat_evict_inode+0x58/0x60 [fat]
[  240.022961]  [<ffffffff811ae4d2>] evict+0xa2/0x1a0
[  240.022961]  [<ffffffff811aec93>] iput+0x103/0x190
[  240.022961]  [<ffffffff811d4d90>] fsnotify_destroy_mark+0x140/0x150
[  240.022961]  [<ffffffff811d6d06>] sys_inotify_rm_watch+0x76/0xc0
[  240.022961]  [<ffffffff8163d9d9>] system_call_fastpath+0x16/0x1b
[  240.022961] Code: c2 ff ff ff ff be 01 00 00 00 48 89 e5 e8 8b fe ff ff 5d c3 90 90 90 90 90 90 90 90 90 66 66 66 66 90 55 b8 00 01 00 00 48 89 e5 <f0> 66 0f c1 07 0f b6 d4 38 c2 74 0f 66 0f 1f 44 00 00 f3 90 0f 
[  240.022961] RIP  [<ffffffff8163507e>] _raw_spin_lock+0xe/0x30
[  240.022961]  RSP <ffff880086c57e68>
[  240.022961] CR2: 0000000000000118
[  240.127883] sdb: detected capacity change from 1006632960 to 0
[  240.240517] ---[ end trace 9a7901db2bb878c8 ]---


Version-Release number of selected component (if applicable):
kernel-3.7.1-1.local2.fc19.x86_64

How reproducible:
Don't know

Steps to Reproduce:
1.
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Actual results:


Expected results:


Additional info: