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[Vincent <vdavy.mobile@xxxxxxxxx>]

apport information

** Attachment added: "UdevLog.txt"
   https://bugs.launchpad.net/bugs/1271540/+attachment/3954608/+files/UdevLog.txt

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https://bugs.launchpad.net/bugs/1271540

Title:
  Random "Watchdog detected hard lockup" when resuming from suspend

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Hi,

  I encounter a random bug when suspending my computer : everything suspends properly when I press the sleep button on the keyboard, but sometimes the computer freezes when I wake it up (by hitting the power button). So I have to power off the computer by long press on the power button, or reset the computer.
  I tried to suspend with the pm-suspend command, I got the same result.
  I tried to suspend through a TTY, and here I was able to get some logs (I took a photo of the log, attached to this bug report).
  The error message was the watchdog detected a hard lockup on the cpu (8 core cpu, so I got several times the message).
  The faulty software seems to be systemd-udevd, according to the trace I got. I googled a bit the problem, but wasn't able to very usefull information

  I wasn't able to find anything about the message I saw on the screen
  in the log files. No record at the time of the freeze. That really
  surprised me.

  I noticed also this problem related to suspend : I use virtualbox and
  if I suspend computer, resume it and try to launch a VM after, I can't
  get it running properly : it is very slow and I have to reboot the
  compter to get it working properly. And I noticed also if I have used
  a VM and after I suspend the computer, I am almost sure I'm gonna have
  a freeze when I wake the computer up. Maybe is there something related
  ?

  This problem happens randomly but I didn't find anything to reproduce it. 
  Here is the configuration of the computer : 
  -mother board : MSI h77ma-g43
  -cpu : intel core i7 ivy bridge series
  -ram : 16 gb
  -using onboard soundcard and video card
  -1 hdd 1.5 tb on sata 3
  -another 1 tb hdd on sata 3
  -bluray/dvd burner on sata

  Using Kubuntu 13.10 x64 everything up to date.

  Does anybody get the same or a similar problem ?
  If any more information is needed, please feel free to ask.
  --- 
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  vincent    2337 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  HibernationDevice: RESUME=UUID=f11f8578-3772-463c-b3ec-e7ec4307cbe3
  InstallationDate: Installed on 2012-06-02 (599 days ago)
  InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: MSI MS-7756
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=/dev/mapper/disque--lvm-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116
  RfKill:
   
  Tags:  saucy
  Uname: Linux 3.11.0-15-generic x86_64
  UpgradeStatus: Upgraded to saucy on 2013-10-19 (95 days ago)
  UserGroups: adm cdrom dip fuse libvirtd lpadmin plugdev sambashare sudo vboxusers wireshark
  dmi.bios.date: 10/29/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V1.13
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: H77MA-G43 (MS-7756)
  dmi.board.vendor: MSI
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MSI
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.13:bd10/29/2013:svnMSI:pnMS-7756:pvr1.0:rvnMSI:rnH77MA-G43(MS-7756):rvr1.0:cvnMSI:ct3:cvr1.0:
  dmi.product.name: MS-7756
  dmi.product.version: 1.0
  dmi.sys.vendor: MSI

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