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[Valery Frolov <fvgenn@xxxxxxxxx>]

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

** Package changed: linux (Ubuntu) => linux-lts-trusty (Ubuntu)

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https://bugs.launchpad.net/bugs/1504021

Title:
  unity won't start after last update to  kernel 3.13.0.66 amd64

Status in linux-lts-trusty package in Ubuntu:
  Confirmed

Bug description:
  last update (07 oct kernel 3.13.0.66 amd64)
  after entering password unity won't start
  no problem with previous kernel 3.13.0.65

  the thing i've found in kern.log

  ----------------- kern.log
  Oct  8 12:22:46 uvfrolov kernel: [   36.979722] BUG: unable to handle kernel paging request at fffffffffffffff8
  Oct  8 12:22:46 uvfrolov kernel: [   36.979750] IP: [<ffffffff81207176>] eventpoll_release_file+0x46/0xa0
  Oct  8 12:22:46 uvfrolov kernel: [   36.979772] PGD 1c11067 PUD 1c13067 PMD 0 
  Oct  8 12:22:46 uvfrolov kernel: [   36.979788] Oops: 0000 [#1] SMP 
  Oct  8 12:22:46 uvfrolov kernel: [   36.979800] Modules linked in: ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) bnep rfcomm bluetooth binfmt_misc uvcvideo eeepc_wmi asus_wmi sparse_keymap mxm_wmi snd_usb_audio videobuf2_vmalloc videobuf2_memops videobuf2_core snd_usbmidi_lib i915 videodev intel_rapl usb_storage x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec coretemp kvm_intel snd_hwdep snd_pcm drm_kms_helper snd_page_alloc snd_seq_midi kvm snd_seq_midi_event dm_multipath mei_me snd_rawmidi snd_seq crct10dif_pclmul crc32_pclmul ghash_clmulni_intel drm aesni_intel aes_x86_64 lrw snd_seq_device gf128mul glue_helper snd_timer scsi_dh ablk_helper snd cryptd i2c_algo_bit mei video serio_raw soundcore shpchp wmi lpc_ich mac_hid parport_pc ppdev lp parport hid_generic usbhid hid ahci r8169 libahci dm_mirror mii dm_region_hash dm_log
  Oct  8 12:22:46 uvfrolov kernel: [   36.980112] CPU: 3 PID: 2256 Comm: pulseaudio Tainted: G           OX 3.13.0-66-generic #107-Ubuntu
  Oct  8 12:22:46 uvfrolov kernel: [   36.980136] Hardware name: System manufacturer System Product Name/P8Z68-V LX, BIOS 0703 10/21/2011
  Oct  8 12:22:46 uvfrolov kernel: [   36.980159] task: ffff8800b25b4800 ti: ffff880231216000 task.ti: ffff880231216000
  Oct  8 12:22:46 uvfrolov kernel: [   36.980178] RIP: 0010:[<ffffffff81207176>]  [<ffffffff81207176>] eventpoll_release_file+0x46/0xa0
  Oct  8 12:22:46 uvfrolov kernel: [   36.980202] RSP: 0018:ffff880231217e78  EFLAGS: 00010282
  Oct  8 12:22:46 uvfrolov kernel: [   36.980217] RAX: 0000000000000000 RBX: ffffffffffffffb8 RCX: 0000000000000010
  Oct  8 12:22:46 uvfrolov kernel: [   36.980234] RDX: 0000000001000000 RSI: 0000000000000000 RDI: ffffffff81c72e80
  Oct  8 12:22:46 uvfrolov kernel: [   36.980253] RBP: ffff880231217ea0 R08: 0000000000000000 R09: 0000000000040000
  Oct  8 12:22:46 uvfrolov kernel: [   36.980271] R10: ffff88023181c261 R11: 0000000000000206 R12: ffffffffffffffa8
  Oct  8 12:22:46 uvfrolov kernel: [   36.980288] R13: ffff88023181c261 R14: ffff88023181cc00 R15: ffff880230d8ad70
  Oct  8 12:22:46 uvfrolov kernel: [   36.980307] FS:  00007fc6c895c740(0000) GS:ffff88023fb80000(0000) knlGS:0000000000000000
  Oct  8 12:22:46 uvfrolov kernel: [   36.980327] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Oct  8 12:22:46 uvfrolov kernel: [   36.980342] CR2: fffffffffffffff8 CR3: 0000000231f46000 CR4: 00000000000407e0
  Oct  8 12:22:46 uvfrolov kernel: [   36.980360] Stack:
  Oct  8 12:22:46 uvfrolov kernel: [   36.980367]  ffff880230d8acc0 0000000000000008 ffff88023181c261 ffff88023181cc00
  Oct  8 12:22:46 uvfrolov kernel: [   36.980390]  ffff88023172e540 ffff880231217ee8 ffffffff811c00aa 0000000000000000
  Oct  8 12:22:46 uvfrolov kernel: [   36.980413]  ffff8800b25b4800 0000000000000000 ffffffff81ebb680 ffff8800b25b4e20
  Oct  8 12:22:46 uvfrolov kernel: [   36.980436] Call Trace:
  Oct  8 12:22:46 uvfrolov kernel: [   36.980447]  [<ffffffff811c00aa>] __fput+0x24a/0x260
  Oct  8 12:22:46 uvfrolov kernel: [   36.980461]  [<ffffffff811c010e>] ____fput+0xe/0x10
  Oct  8 12:22:46 uvfrolov kernel: [   36.980476]  [<ffffffff81088557>] task_work_run+0xa7/0xe0
  Oct  8 12:22:46 uvfrolov kernel: [   36.980491]  [<ffffffff81013ed7>] do_notify_resume+0x97/0xb0
  Oct  8 12:22:46 uvfrolov kernel: [   36.980508]  [<ffffffff81734f5a>] int_signal+0x12/0x17
  Oct  8 12:22:46 uvfrolov kernel: [   36.980521] Code: 00 41 56 41 55 41 54 53 e8 68 37 52 00 49 8b 07 48 8b 08 49 39 c7 4c 8d 60 a8 48 8d 59 a8 75 0b eb 3e 0f 1f 00 49 89 dc 48 89 d3 <4d> 8b 74 24 50 4d 8d 6e 08 4c 89 ef e8 39 37 52 00 4c 89 e6 4c 
  Oct  8 12:22:46 uvfrolov kernel: [   36.980647] RIP  [<ffffffff81207176>] eventpoll_release_file+0x46/0xa0
  Oct  8 12:22:46 uvfrolov kernel: [   36.980665]  RSP <ffff880231217e78>
  Oct  8 12:22:46 uvfrolov kernel: [   36.980675] CR2: fffffffffffffff8
  Oct  8 12:22:46 uvfrolov kernel: [   36.984627] ---[ end trace fef0741bfd17549e ]---
  --- 
  ApportVersion: 2.14.1-0ubuntu3.16
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-id', '/dev/snd/controlC1', '/dev/snd/pcmC1D0c', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D3', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2014-04-21 (534 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  IwConfig:
   tun0      no wireless extensions.
   
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: System manufacturer System Product Name
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-66-generic root=UUID=c63bd487-774a-4a9c-bd20-5dba7bb879f8 ro quiet splash security=selinux selinux=1 vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-66.107-generic 3.13.11-ckt27
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-66-generic N/A
   linux-backports-modules-3.13.0-66-generic  N/A
   linux-firmware                             1.127.16
  RfKill:
   
  Tags:  trusty
  Uname: Linux 3.13.0-66-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo vboxusers
  _MarkForUpload: True
  dmi.bios.date: 10/21/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0703
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z68-V LX
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0703:bd10/21/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VLX:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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