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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/1296223

Title:
  Invalid opcode 0000 in, I think, __find_get_block

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  [   72.534016] ------------[ cut here ]------------
  [   72.534073] kernel BUG at /build/buildd/linux-3.11.0/fs/buffer.c:1268!
  [   72.534139] invalid opcode: 0000 [#1] SMP 
  [   72.534184] Modules linked in: ec_sys dm_crypt x86_pkg_temp_thermal parport_pc coretemp ppdev kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel arc4 aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev rfcomm bnep dm_multipath snd_hda_codec_hdmi scsi_dh snd_hda_codec_realtek snd_hda_intel iwlmvm mac80211 hid_multitouch snd_hda_codec microcode psmouse btusb snd_hwdep bluetooth binfmt_misc iwlwifi snd_pcm serio_raw rtsx_pci_ms memstick snd_page_alloc cfg80211 snd_seq_midi snd_seq_midi_event snd_rawmidi lpc_ich snd_seq snd_seq_device snd_timer snd mei_me mei soundcore mac_hid lp parport btrfs zlib_deflate raid6_pq libcrc32c dm_raid45 xor dm_mirror dm_region_hash dm_log mmc_block usbhid hid rtsx_pci_sdmmc i915 ahci i2c_algo_bit libahci r8169 drm_kms_helper mii drm rtsx_pci wmi video
  [   72.535340] CPU: 1 PID: 3241 Comm: t Tainted: G          I  3.11.0-18-generic #32-Ubuntu
  [   72.535419] Hardware name: System76, Inc                    Darter UltraThin/Darter UltraThin, BIOS 4.6.5 10/28/2013
  [   72.535521] task: ffff88020f938000 ti: ffff88020ceae000 task.ti: ffff88020ceae000
  [   72.535592] RIP: 0010:[<ffffffff816e5139>]  [<ffffffff816e5139>] check_irqs_on.part.11+0x4/0x6
  [   72.535686] RSP: 0018:ffff88020ceaf708  EFLAGS: 00010046
  [   72.535739] RAX: 0000000000000086 RBX: 0000000000001000 RCX: 00000000036e4700
  [   72.535807] RDX: 0000000000001000 RSI: 000000000050202b RDI: ffff880213b796c0
  [   72.535874] RBP: ffff88020ceaf708 R08: 00000000036e4700 R09: 0000000180150015
  [   72.535942] R10: ffffea00083b4ac0 R11: ffffffff812ae600 R12: ffff8801fbdae8b0
  [   72.536010] R13: ffff88020ceaf88c R14: 0000000000000000 R15: ffff880213b796c0
  [   72.536079] FS:  00007f4df9677840(0000) GS:ffff88021fa80000(0000) knlGS:0000000000000000
  [   72.536157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [   72.536212] CR2: 00007f4df81975ec CR3: 000000020cf92000 CR4: 00000000001407e0
  [   72.536280] Stack:
  [   72.536301]  ffff88020ceaf778 ffffffff811d8f29 ffff8801f03c3a90 ffff88020d210bc8
  [   72.536380]  ffff880213ba7d68 ffff88020ceaf760 ffffffff8127ecfa ffff8801fbdae8b0
  [   72.536457]  0000000000000000 0000000000000000 0000000000001000 ffff8801fbdae8b0
  [   72.536536] Call Trace:
  [   72.536572]  [<ffffffff811d8f29>] __find_get_block+0x229/0x230
  [   72.536634]  [<ffffffff8127ecfa>] ? ext4_es_lookup_extent+0x2a/0x180
  [   72.536700]  [<ffffffff811d8f54>] __getblk+0x24/0x2e0
  [   72.536755]  [<ffffffff81328329>] ? blkcipher_walk_next+0x229/0x350
  [   72.536821]  [<ffffffff81243317>] ext4_getblk+0x97/0x200
  [   72.536876]  [<ffffffff8124cd8f>] ext4_find_entry+0x2cf/0x4e0
  [   72.536935]  [<ffffffff8118ed15>] ? __kmalloc+0x55/0x180
  [   72.536991]  [<ffffffff811bf4d5>] ? __d_alloc+0x145/0x180
  [   72.537045]  [<ffffffff811bf4b2>] ? __d_alloc+0x122/0x180
  [   72.537099]  [<ffffffff8124cfe2>] ext4_lookup+0x42/0x150
  [   72.537156]  [<ffffffff811b17bd>] lookup_real+0x1d/0x50
  [   72.537210]  [<ffffffff811b1d63>] __lookup_hash+0x33/0x40
  [   72.537266]  [<ffffffff811b2a56>] lookup_one_len+0xe6/0x140
  [   72.537325]  [<ffffffff812a8b5c>] ecryptfs_lookup+0x1cc/0x350
  [   72.537383]  [<ffffffff811b17bd>] lookup_real+0x1d/0x50
  [   72.537438]  [<ffffffff811b64a6>] do_last+0x856/0xe50
  [   72.537494]  [<ffffffff8118e5d8>] ? kmem_cache_alloc_trace+0x108/0x130
  [   72.537561]  [<ffffffff812ddab6>] ? security_file_alloc+0x16/0x20
  [   72.537624]  [<ffffffff811b6b61>] path_openat+0xc1/0x630
  [   72.537681]  [<ffffffff810915b0>] ? finish_task_switch+0x50/0xf0
  [   72.537743]  [<ffffffff811b7eda>] do_filp_open+0x3a/0x90
  [   72.537798]  [<ffffffff81201096>] ? cn_vprintf+0x56/0x80
  [   72.537854]  [<ffffffff811a6e8f>] file_open_name+0xef/0x140
  [   72.537910]  [<ffffffff811a6f15>] filp_open+0x35/0x40
  [   72.537961]  [<ffffffff81201758>] do_coredump+0x4d8/0xe20
  [   72.538018]  [<ffffffff81071233>] ? __sigqueue_free.part.15+0x33/0x40
  [   72.538083]  [<ffffffff810743b7>] get_signal_to_deliver+0x1c7/0x5e0
  [   72.538149]  [<ffffffff81012438>] do_signal+0x48/0x960
  [   72.538201]  [<ffffffff8107334d>] ? do_send_sig_info+0x5d/0x80
  [   72.538263]  [<ffffffff81012dc8>] do_notify_resume+0x78/0xa0
  [   72.538322]  [<ffffffff816f86da>] int_signal+0x12/0x17
  [   72.538372] Code: 70 32 a6 81 e8 b5 d9 ff ff 4d 85 e4 74 14 49 8d 7c 24 58 e8 7a 8d 96 ff 66 90 4c 89 e7 e8 d0 8b ad ff 5b 41 5c 5d c3 55 48 89 e5 <0f> 0b 55 48 89 e5 0f 0b 55 48 89 e5 0f 0b 55 48 89 e5 0f 0b 55 
  [   72.538664] RIP  [<ffffffff816e5139>] check_irqs_on.part.11+0x4/0x6
  [   72.538730]  RSP <ffff88020ceaf708>
  [   72.565898] ---[ end trace cf17f23406e928d8 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-generic 3.11.0.18.19
  ProcVersionSignature: Ubuntu 3.11.0-18.32-generic 3.11.10.4
  Uname: Linux 3.11.0-18-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  cmiller    2927 F.... pulseaudio
   /dev/snd/controlC0:  cmiller    2927 F.... pulseaudio
  Date: Sun Mar 23 05:16:27 2014
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=4ffc102d-46cf-4daa-8cbe-cf7a8569ad83
  MachineType: System76, Inc Darter UltraThin
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-18-generic root=UUID=5aa160f9-0a01-4291-8d9d-704469e9a970 ro quiet splash acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-18-generic N/A
   linux-backports-modules-3.11.0-18-generic  N/A
   linux-firmware                             1.116.2
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/28/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 4.6.5
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: Darter UltraThin
  dmi.board.vendor: System76, Inc
  dmi.board.version: daru4
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: System76, Inc
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd10/28/2013:svnSystem76,Inc:pnDarterUltraThin:pvrdaru4:rvnSystem76,Inc:rnDarterUltraThin:rvrdaru4:cvnSystem76,Inc:ct9:cvrN/A:
  dmi.product.name: Darter UltraThin
  dmi.product.version: daru4
  dmi.sys.vendor: System76, Inc

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