3] kernel BUG at /build/buildd/linux-3.0.0/fs/ecryptfs/crypto.c:348!
invalid opcode: 0000 [#1] SMP 
CPU 0 
Modules linked in: parport_pc ppdev dm_crypt rfcomm bnep bluetooth pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv joydev arc4 dell_wmi sparse_keymap dell_laptop snd_hda_codec_idt dcdbas dm_multipath snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi r852 sm_common nand nand_ids snd_seq_midi_event nand_bch bch nand_ecc mtd snd_seq psmouse serio_raw snd_timer snd_seq_device iwlagn mac80211 cfg80211 snd binfmt_misc soundcore snd_page_alloc lp parport btrfs zlib_deflate libcrc32c usb_storage uas usbhid hid firewire_ohci nouveau ttm drm_kms_helper firewire_core drm i2c_algo_bit sdhci_pci b44 sdhci crc_itu_t ssb mxm_wmi wmi video ahci libahci

Pid: 1950, comm: dconf-service Not tainted 3.0.0-10-generic #16-Ubuntu Dell Inc. Inspiron 1520                   /0UW306
RIP: 0010:[<ffffffff81255872>]  [<ffffffff81255872>] encrypt_scatterlist+0x112/0x140
RSP: 0018:ffff8800d5f0bb48  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88008c1c3688 RCX: 0000000000001000
RDX: ffff8800d5f0bbc0 RSI: ffff8800d5f0bbe0 RDI: ffff88008c1c3688
RBP: ffff8800d5f0bb98 R08: ffff8800d5f0bc00 R09: ffff8800d5f0bbe0
R10: 0000000000000000 R11: 0000000090b4df2a R12: ffff8800d5f0bbc0
R13: 0000000000000000 R14: 0000000000001000 R15: ffff8800d5f0bbe0
FS:  00007f35257157c0(0000) GS:ffff88011fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000025dbff8 CR3: 00000000d529d000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process dconf-service (pid: 1950, threadinfo ffff8800d5f0a000, task ffff8800d5001720)
Stack:
 0000000000000000 0000000000000000 ffff8800d5f0bc00 0000000000000200
 0000000000000001 ffff88008c1c3688 ffffea00018ab5e0 0000000000000000
 0000000000000000 ffffea00024354c8 ffff8800d5f0bc48 ffffffff812561d4
Call Trace:
 [<ffffffff812561d4>] ecryptfs_encrypt_extent+0x114/0x2b0
 [<ffffffff8125691d>] ecryptfs_encrypt_page+0xdd/0x1a0
 [<ffffffff81254492>] ecryptfs_writepage+0x32/0x90
 [<ffffffff811136a7>] __writepage+0x17/0x40
 [<ffffffff81113bfd>] write_cache_pages+0x1ed/0x470
 [<ffffffff81113690>] ? set_page_dirty_lock+0x60/0x60
 [<ffffffff8110bd06>] ? generic_file_aio_write+0x96/0xe0
 [<ffffffff81113eca>] generic_writepages+0x4a/0x70
 [<ffffffff81114a95>] do_writepages+0x35/0x40
 [<ffffffff8110b61b>] __filemap_fdatawrite_range+0x5b/0x60
 [<ffffffff8110c01f>] filemap_fdatawrite+0x1f/0x30
 [<ffffffff8110c065>] filemap_write_and_wait+0x35/0x60
 [<ffffffff81251244>] ecryptfs_flush+0x24/0x30
 [<ffffffff811657ef>] filp_close+0x3f/0x90
 [<ffffffff811658f4>] sys_close+0xb4/0x120
 [<ffffffff815f21c2>] system_call_fastpath+0x16/0x1b
Code: 00 85 c0 74 93 89 c2 48 c7 c6 40 9b 62 81 31 c0 48 c7 c7 50 ca 7f 81 e8 ed da ff ff 4c 89 ef e8 35 30 39 00 b8 ea ff ff ff eb a3 <0f> 0b 48 8b 53 20 48 c7 c6 40 9b 62 81 48 c7 c7 ec 5d 80 81 31 
RIP  [<ffffffff81255872>] encrypt_scatterlist+0x112/0x140
 RSP <ffff8800d5f0bb48>
[drm] nouveau 0000:01:00.0: EvoCh 1 Mthd 0x0080 Data 0x00000000 (0x000b 0x05)
[drm] nouveau 0000:01:00.0: EvoCh 2 Mthd 0x0080 Data 0x00000000 (0x000b 0x05)
---[ end trace 1a88a809d368d013 ]---