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kernel BUG at /build/buildd/linux-2.6.38/fs/ecryptfs/crypto.c:349!
invalid opcode: 0000 [#1] SMP 
last sysfs file: /sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/class
CPU 0 
Modules linked in: cryptd aes_x86_64 aes_generic binfmt_misc parport_pc ppdev dm_crypt snd_hda_codec_conexant arc4 thinkpad_acpi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm iwlagn snd_seq_midi snd_rawmidi iwlcore snd_seq_midi_event snd_seq mac80211 uvcvideo snd_timer snd_seq_device videodev tpm_tis v4l2_compat_ioctl32 psmouse cfg80211 snd tpm serio_raw tpm_bios nvram soundcore snd_page_alloc lp parport i915 drm_kms_helper drm i2c_algo_bit e1000e video ahci libahci

Pid: 1609, comm: dconf-service Not tainted 2.6.38-7-generic #39-Ubuntu LENOVO 7465CTO/7465CTO
RIP: 0010:[<ffffffff81250502>]  [<ffffffff81250502>] encrypt_scatterlist+0x112/0x140
RSP: 0018:ffff88010e05ba58  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88010bc18e88 RCX: 0000000000001000
RDX: ffff88010e05bae8 RSI: ffff88010e05bac8 RDI: ffff88010bc18e88
RBP: ffff88010e05baa8 R08: ffff88010e05bb08 R09: ffff88010e05bac8
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88010e05bae8
R13: 0000000000000000 R14: 0000000000001000 R15: ffff88010e05bac8
FS:  00007f125213d7c0(0000) GS:ffff8800bd200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f125215f000 CR3: 000000010e05e000 CR4: 00000000000406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process dconf-service (pid: 1609, threadinfo ffff88010e05a000, task ffff88012f70db00)
Stack:
 0000000000000000 ffff88010e05bb08 ffff880100000200 00000000c4aa8a2f
 0000000000001000 ffff88010bc18e88 ffffea0003aadf20 0000000000000000
 0000000000000000 ffffea0003b1b590 ffff88010e05bb58 ffffffff81250e9b
Call Trace:
 [<ffffffff81250e9b>] ecryptfs_encrypt_extent+0x11b/0x2b0
 [<ffffffff8125146d>] ecryptfs_encrypt_page+0xdd/0x1a0
 [<ffffffff8124f97d>] ecryptfs_write_end+0x1dd/0x270
 [<ffffffff8110a6ab>] generic_perform_write+0x12b/0x1d0
 [<ffffffff8110a7ae>] generic_file_buffered_write+0x5e/0x90
 [<ffffffff8110c739>] __generic_file_aio_write+0x229/0x440
 [<ffffffff81181f16>] ? mntput_no_expire+0x36/0xf0
 [<ffffffff81172124>] ? finish_open+0xe4/0x1b0
 [<ffffffff8110c9b6>] generic_file_aio_write+0x66/0xd0
 [<ffffffff81163412>] do_sync_write+0xd2/0x110
 [<ffffffff812e5897>] ? __strncpy_from_user+0x27/0x60
 [<ffffffff812ad488>] ? apparmor_file_permission+0x18/0x20
 [<ffffffff8127887c>] ? security_file_permission+0x2c/0xb0
 [<ffffffff81163841>] ? rw_verify_area+0x61/0xf0
 [<ffffffff81163b86>] vfs_write+0xc6/0x180
 [<ffffffff81163ea1>] sys_write+0x51/0x90
 [<ffffffff8100c002>] system_call_fastpath+0x16/0x1b
Code: 00 85 c0 74 93 89 c2 48 c7 c6 d0 d3 62 81 31 c0 48 c7 c7 d0 0f 7f 81 e8 8d db ff ff 4c 89 ef e8 d5 f5 36 00 b8 ea ff ff ff eb a3 <0f> 0b 48 8b 53 20 48 c7 c6 d0 d3 62 81 48 c7 c7 cc a0 7f 81 31 
RIP  [<ffffffff81250502>] encrypt_scatterlist+0x112/0x140
 RSP <ffff88010e05ba58>
---[ end trace 790ca3782908ac12 ]---