Public bug reported:
Just added a disk, and when umounting it by hand, it gave the following
trace:
[673863.654902] sdc: detected capacity change from 4075290624 to 0
[673865.700461] sd 9:0:0:0: [sdc] 7959552 512-byte logical blocks: (4.07
GB/3.79 GiB)
[673865.702694] sd 9:0:0:0: [sdc] No Caching mode page present
[673865.702697] sd 9:0:0:0: [sdc] Assuming drive cache: write through
[673865.705539] sd 9:0:0:0: [sdc] No Caching mode page present
[673865.705542] sd 9:0:0:0: [sdc] Assuming drive cache: write through
[673865.706934] sdc: sdc1 sdc2
[673866.109620] EXT4-fs (sdc2): mounted filesystem with ordered data mode.
Opts: (null)
[673911.398198] VFS: Busy inodes after unmount of sdc1. Self-destruct in 5
seconds. Have a nice day...
[673911.398561] BUG: unable to handle kernel NULL pointer dereference at
00000000000000f0
[673911.398598] IP: [<ffffffff8103dc49>] __ticket_spin_lock+0x9/0x30
[673911.398631] PGD 22dcb0067 PUD 22dc96067 PMD 0
[673911.398650] Oops: 0002 [#1] SMP
[673911.398665] CPU 0
[673911.398673] Modules linked in: ftdi_sio pl2303 usbserial ufs qnx4 hfsplus
hfs minix ntfs msdos jfs xfs reiserfs ext2 nls_iso8859_1 nls_cp437 vfat fat uas
usb_storage snd_usb_audio snd_usbmidi_lib hidp kvm_intel kvm rfcomm bnep
parport_pc ppdev binfmt_misc dm_crypt arc4 pcmcia snd_hda_codec_conexant
snd_hda_intel snd_hda_codec snd_hwdep snd_pcm psmouse serio_raw snd_seq_midi
joydev snd_rawmidi yenta_socket pcmcia_rsrc pcmcia_core snd_seq_midi_event
uvcvideo snd_seq videodev v4l2_compat_ioctl32 btusb hid_logitech_dj bluetooth
iwlwifi thinkpad_acpi nvram snd_timer snd_seq_device tpm_tis mac80211 snd
cfg80211 mac_hid mei(C) soundcore snd_page_alloc lp parport btrfs zlib_deflate
libcrc32c usbhid hid firewire_ohci firewire_core crc_itu_t wmi video radeon ttm
drm_kms_helper drm e1000e i2c_algo_bit
[673911.399150]
[673911.399158] Pid: 2485, comm: gvfsd-trash Tainted: G WC
3.2.0-26-generic #41-Ubuntu LENOVO 2764CTO/2764CTO
[673911.399218] RIP: 0010:[<ffffffff8103dc49>] [<ffffffff8103dc49>]
__ticket_spin_lock+0x9/0x30
[673911.399269] RSP: 0018:ffff88022e359e18 EFLAGS: 00010206
[673911.399289] RAX: 0000000000010000 RBX: 00000000000000f0 RCX:
ffff88023bfb2000
[673911.399328] RDX: 0000000000000007 RSI: 0000000000000000 RDI:
00000000000000f0
[673911.399362] RBP: ffff88022e359e18 R08: e000000000000000 R09:
1038000000000000
[673911.399396] R10: fe748f65d4216207 R11: 0000000000000078 R12:
ffff88016d70f4f0
[673911.399431] R13: ffff88016d70f5e8 R14: ffff88022a2d2a64 R15:
ffff88016d70f4f0
[673911.399463] FS: 00007f345f1117c0(0000) GS:ffff88023bc00000(0000)
knlGS:0000000000000000
[673911.399492] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[673911.399518] CR2: 00000000000000f0 CR3: 000000022dcaf000 CR4:
00000000000006f0
[673911.399549] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[673911.399581] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[673911.399610] Process gvfsd-trash (pid: 2485, threadinfo ffff88022e358000,
task ffff88022e350000)
[673911.399654] Stack:
[673911.399663] ffff88022e359e28 ffffffff816599ce ffff88022e359e48
ffffffffa0625462
[673911.399706] ffff88016d70f4f0 ffff88016d70f4f0 ffff88022e359e68
ffffffffa0625bcb
[673911.399746] ffff88022e359e68 ffffffffa06296c0 ffff88022e359e98
ffffffff811927b8
[673911.399785] Call Trace:
[673911.399801] [<ffffffff816599ce>] _raw_spin_lock+0xe/0x20
[673911.399829] [<ffffffffa0625462>] fat_detach+0x32/0x80 [fat]
[673911.399852] [<ffffffffa0625bcb>] fat_evict_inode+0x5b/0x70 [fat]
[673911.399880] [<ffffffff811927b8>] evict+0xb8/0x1c0
[673911.399900] [<ffffffff811929a8>] iput_final+0xe8/0x210
[673911.399922] [<ffffffff81192b0e>] iput+0x3e/0x50
[673911.400007] [<ffffffff811b7d30>] fsnotify_destroy_mark+0x170/0x180
[673911.403667] [<ffffffff811b9d2a>] sys_inotify_rm_watch+0x7a/0xd0
[673911.403667] [<ffffffff81661fc2>] system_call_fastpath+0x16/0x1b
[673911.406231] Code: 00 00 48 c7 c1 51 da 03 81 48 c7 c2 4e da 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
[673911.408156] RIP [<ffffffff8103dc49>] __ticket_spin_lock+0x9/0x30
[673911.408156] RSP <ffff88022e359e18>
[673911.408156] CR2: 00000000000000f0
[673911.425840] ---[ end trace c05eef64bf42d647 ]---
Kernel:
Linux evatp 3.2.0-26-generic #41-Ubuntu SMP Thu Jun 14 17:49:24 UTC 2012 x86_64
x86_64 x86_64 GNU/Linux
Ubuntu 12.04 LTS
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: precise
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https://bugs.launchpad.net/bugs/1032428
Title:
NULL pointer dereference while umounting usb stick
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