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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/system/cpu/cpu0/cpufreq/scaling_max_freq
Modules linked in: cryptd aes_i586 aes_generic webcamstudio parport_pc dm_crypt ppdev arc4 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel binfmt_misc snd_hda_codec snd_hwdep ath9k snd_pcm snd_seq_midi snd_rawmidi uvcvideo mac80211 snd_seq_midi_event joydev videodev snd_seq ath9k_common ath9k_hw snd_timer r852 snd_seq_device sm_common nand ath nand_ids snd nand_ecc psmouse cfg80211 mtd serio_raw soundcore snd_page_alloc asus_laptop sparse_keymap lp parport usbhid hid i915 drm_kms_helper drm ahci firewire_ohci firewire_core sdhci_pci libahci i2c_algo_bit video sdhci r8169 crc_itu_t

Pid: 2031, comm: dconf-service Not tainted 2.6.38-8-generic-pae #42-Ubuntu ASUSTeK Computer Inc.         X71Q                /X71Q      
EIP: 0060:[<c1203774>] EFLAGS: 00010246 CPU: 1
EIP is at encrypt_scatterlist+0xe4/0x120
EAX: 00000000 EBX: f6c76900 ECX: eef3dcd8 EDX: eef3dcf0
ESI: 00000000 EDI: 00001000 EBP: eef3dc94 ESP: eef3dc68
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process dconf-service (pid: 2031, ti=eef3c000 task=f1a871a0 task.ti=eef3c000)
Stack:
 00000000 00000000 00000000 eef3dcd8 eef3dcc0 00000000 eef3dcf0 00000200
 00000000 00000000 00001000 eef3dd10 c1203fb0 00001000 eef3dcf0 00000000
 f1a871a0 00000000 f39f3380 00000000 f57bfde0 f6c76900 f39f3382 00000000
Call Trace:
 [<c1203fb0>] ecryptfs_encrypt_extent+0xe0/0x220
 [<c1204441>] ecryptfs_encrypt_page+0x91/0x1d0
 [<c1106643>] ? page_address+0xd3/0xe0
 [<c103cb96>] ? kmap_atomic_prot+0xf6/0x120
 [<c1202afd>] ecryptfs_write_end+0x12d/0x360
 [<c10eb2d1>] generic_perform_write+0x121/0x1b0
 [<c10eb3b4>] generic_file_buffered_write+0x54/0x90
 [<c10ed300>] __generic_file_aio_write+0x220/0x4e0
 [<c114b449>] ? vfsmount_lock_local_unlock+0x19/0x20
 [<c113f0fa>] ? finish_open+0xca/0x1a0
 [<c113e988>] ? do_path_lookup+0x68/0x120
 [<c10ed61e>] generic_file_aio_write+0x5e/0xd0
 [<c114b449>] ? vfsmount_lock_local_unlock+0x19/0x20
 [<c11320e4>] do_sync_write+0xa4/0xe0
 [<c1133a01>] ? __fput+0x121/0x1c0
 [<c113251c>] ? rw_verify_area+0x6c/0x130
 [<c11328a2>] vfs_write+0xa2/0x170
 [<c1132040>] ? do_sync_write+0x0/0xe0
 [<c1132b82>] sys_write+0x42/0x70
 [<c100ab5f>] sysenter_do_call+0x12/0x28
Code: 00 85 c0 74 a6 89 44 24 08 c7 44 24 04 57 7b 55 c1 c7 04 24 40 9b 6c c1 e8 ea dc ff ff 89 f0 e8 b3 cb 32 00 b8 ea ff ff ff eb b9 <0f> 0b 8b 43 14 c7 44 24 04 57 7b 55 c1 c7 04 24 4f 2b 6d c1 89 
EIP: [<c1203774>] encrypt_scatterlist+0xe4/0x120 SS:ESP 0068:eef3dc68
---[ end trace 0e45c8f4b13abebb ]---