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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This change was made by a bot.

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

** Tags added: saucy

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https://bugs.launchpad.net/bugs/1321720

Title:
  Terminal shell hangs - bug in cryptfs or ext4?

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  dmesg shows:

  [   17.495153] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
  [   20.968504] hidraw: raw HID events driver (C) Jiri Kosina
  [   20.970619] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
  [   20.970627] Bluetooth: HIDP socket layer initialized
  [  108.718811] ------------[ cut here ]------------
  [  108.718814] Kernel BUG at ffffffff811d7d38 [verbose debug info unavailable]
  [  108.718815] invalid opcode: 0000 [#1] SMP 
  [  108.718816] Modules linked in: hidp hid dm_crypt(F) joydev(F) pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) snd_hda_codec_hdmi rfcomm bnep binfmt_misc(F) arc4(F) x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel(F) kvm(F) crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) iwldvm aesni_intel(F) mac80211 aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) nls_iso8859_1(F) dell_wmi sparse_keymap ppdev(F) dell_laptop dcdbas dm_multipath(F) scsi_dh(F) uvcvideo videobuf2_vmalloc videobuf2_memops snd_hda_codec_idt videobuf2_core videodev btusb bluetooth microcode(F) psmouse(F) serio_raw(F) snd_hda_intel snd_hda_codec snd_hwdep(F) snd_pcm(F) lpc_ich iwlwifi snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) cfg80211 snd_seq(F) snd_seq_device(F) snd_timer(F) snd(F) nvidia(POF) soundcore(F) tpm_tis wmi parport_pc(F) mei_me mac_hid mei lp(F) parport(F) dm_mirror(F) dm_region_hash(F) dm_log(F) sdhci_pci sdhci ahci(F) libahci(F) e1000e(F) ptp(F) pps_core(F) video(F)
  [  108.718843] CPU: 0 PID: 2744 Comm: java Tainted: PF          O 3.11.0-12-generic #19-Ubuntu
  [  108.718844] Hardware name: Dell Inc. Latitude E6530/0N8CC4, BIOS A14 01/13/2014
  [  108.718845] task: ffff880414829770 ti: ffff8803d8cd4000 task.ti: ffff8803d8cd4000
  [  108.718846] RIP: 0010:[<ffffffff811d7d38>]  [<ffffffff811d7d38>] __find_get_block+0x228/0x230
  [  108.718850] RSP: 0018:ffff8803d8cd5780  EFLAGS: 00010046
  [  108.718851] RAX: 0000000000000096 RBX: 0000000000001000 RCX: 0000000000e8aa00
  [  108.718852] RDX: 0000000000001000 RSI: 00000000005035db RDI: ffff880416fb6a40
  [  108.718853] RBP: ffff8803d8cd57d8 R08: 0000000000e8aa00 R09: ffff88042dc173c0
  [  108.718854] R10: ffffea0010533880 R11: ffffffff812acb10 R12: ffff8803e06228b0
  [  108.718854] R13: ffff8803d8cd588c R14: 0000000000000000 R15: ffff880416fb6a40
  [  108.718856] FS:  00007f94a0ca3700(0000) GS:ffff88042dc00000(0000) knlGS:0000000000000000
  [  108.718856] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [  108.718857] CR2: 00007f949f9f9a10 CR3: 00000003dfe1c000 CR4: 00000000001407f0
  [  108.718858] Stack:c
  [  108.718859]  ffffffff811d7d64 ffffffff81326059 ffff8803d8cd5870 ffff8804159188d8
  [  108.718861]  0000000100000000 00000000005035db 0000000000000000 ffff8803e06228b0
  [  108.718862]  ffff8803d8cd588c 0000000000000000 0000000000000000 ffff8803d8cd5830
  [  108.718864] Call Trace:
  [  108.718866]  [<ffffffff811d7d64>] ? __getblk+0x24/0x2e0
  [  108.718869]  [<ffffffff81326059>] ? blkcipher_walk_next+0x229/0x350
  [  108.718872]  [<ffffffff81241cd7>] ext4_getblk+0x97/0x200
  [  108.718875]  [<ffffffff8124b74f>] ext4_find_entry+0x2cf/0x4e0
  [  108.718878]  [<ffffffff8118dd35>] ? __kmalloc+0x55/0x180
  [  108.718881]  [<ffffffff811be325>] ? __d_alloc+0x145/0x180
  [  108.718882]  [<ffffffff811be302>] ? __d_alloc+0x122/0x180
  [  108.718883]  [<ffffffff8124b9a2>] ext4_lookup+0x42/0x150
  [  108.718885]  [<ffffffff811b075d>] lookup_real+0x1d/0x50
  [  108.718887]  [<ffffffff811b0d03>] __lookup_hash+0x33/0x40
  [  108.718889]  [<ffffffff811b19f6>] lookup_one_len+0xe6/0x140
  [  108.718891]  [<ffffffff812a706c>] ecryptfs_lookup+0x1cc/0x350
  [  108.718893]  [<ffffffff811b075d>] lookup_real+0x1d/0x50
  [  108.718895]  [<ffffffff811b47a6>] do_last+0x856/0xe40
  [  108.718897]  [<ffffffff8118d938>] ? kmem_cache_alloc_trace+0x108/0x130
  [  108.718899]  [<ffffffff81316db3>] ? apparmor_file_alloc_security+0x23/0x40
  [  108.718901]  [<ffffffff812dbe66>] ? security_file_alloc+0x16/0x20
  [  108.718903]  [<ffffffff811b5981>] path_openat+0xc1/0x630
  [  108.718905]  [<ffffffff81091420>] ? finish_task_switch+0x50/0xf0
  [  108.718907]  [<ffffffff811b6cfa>] do_filp_open+0x3a/0x90
  [  108.718909]  [<ffffffff811ffa16>] ? cn_vprintf+0x56/0x80
  [  108.718911]  [<ffffffff811a5def>] file_open_name+0xef/0x140
  [  108.718913]  [<ffffffff811a5e75>] filp_open+0x35/0x40
  [  108.718914]  [<ffffffff812000d8>] do_coredump+0x4d8/0xe20
  [  108.718916]  [<ffffffff8113f343>] ? unlock_page+0x23/0x30
  [  108.718918]  [<ffffffff810711c3>] ? __sigqueue_free.part.15+0x33/0x40
  [  108.718921]  [<ffffffff81074347>] get_signal_to_deliver+0x1c7/0x5e0
  [  108.718924]  [<ffffffff81012438>] do_signal+0x48/0x960
  [  108.718925]  [<ffffffff810732dd>] ? do_send_sig_info+0x5d/0x80
  [  108.718927]  [<ffffffff81012dc8>] do_notify_resume+0x78/0xa0
  [  108.718929]  [<ffffffff816f54da>] int_signal+0x12/0x17
  [  108.718930] Code: 85 f6 0f 84 aa fe ff ff 4c 89 f7 e8 73 f7 ff ff e9 9d fe ff ff 4c 89 e7 e8 66 f7 ff ff e9 35 ff ff ff 45 31 f6 eb d1 0f 0b 0f 0b <0f> 0b 66 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 41 57 49 89 
  [  108.718946] RIP  [<ffffffff811d7d38>] __find_get_block+0x228/0x230
  [  108.718948]  RSP <ffff8803d8cd5780>
  [  108.718949] ---[ end trace 7581a7be357432c8 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-12-generic 3.11.0-12.19
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  stain      1869 F.... pulseaudio
   /dev/snd/controlC0:  stain      1869 F.... pulseaudio
  Date: Wed May 21 12:38:19 2014
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=10ea6e88-af4c-4074-9c41-255d4582dba5
  InstallationDate: Installed on 2014-04-28 (22 days ago)
  InstallationMedia: Linux Mint 16 "petra" - Release amd64 20131126
  MachineType: Dell Inc. Latitude E6530
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=b448bf83-3bcf-46d7-a3e9-c625e416bed1 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-12-generic N/A
   linux-backports-modules-3.11.0-12-generic  N/A
   linux-firmware                             1.116.2
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/13/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A14
  dmi.board.name: 0N8CC4
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA14:bd01/13/2014:svnDellInc.:pnLatitudeE6530:pvr01:rvnDellInc.:rn0N8CC4:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6530
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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