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[Johnny Ooi <johnny.jy.ooi+launchpad@xxxxxxxxx>]

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https://bugs.launchpad.net/bugs/1506845

Title:
  Suspected Race Condition on boot

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Ubuntu Vivid using stock install, no additional configs, on a dual
  boot (Ubuntu + Win7)

  When booting, my laptop will sometimes boot successfully, sometimes
  not, and sometimes, will reboot. Using CTRL+ALT+F1 to get to terminal
  shows me a console flood for Nouveau (sometimes) and sometimes not.
  Sometimes I see messages about firmware not being used/installed.

  I cannot reliably replicate this problem, but I have had similar
  problems running Fedora on this machine with similar console floods,
  which points further up to the upstream kernel.

  I suspect it is a race condition, as if I can see the console flood,
  the laptop often boots successfully, but if I don't I either get a
  kernel panic or a self-reboot.

  Can provide more information/HW details if needed (but not at the machine right now)
  --- 
  ApportVersion: 2.17.2-0ubuntu1.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC1D0p:   johnny     1685 F...m pulseaudio
   /dev/snd/controlC1:  johnny     1685 F.... pulseaudio
  CurrentDesktop: X-Cinnamon
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=05d5c6ab-b18c-44c9-ba05-7eff0f8d62b5
  InstallationDate: Installed on 2015-10-12 (5 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Notebook W35xSS_370SS
  Package: linux (not installed)
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic root=UUID=f8a017f7-c589-4cbb-a001-08c7e3c2a815 ro recovery nomodeset priority=low
  ProcVersionSignature: Ubuntu 3.19.0-30.34-generic 3.19.8-ckt6
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-30-generic N/A
   linux-backports-modules-3.19.0-30-generic  N/A
   linux-firmware                             1.143.3
  Tags:  vivid
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 3.19.0-30-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 04/08/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 4.6.5
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: W35xSS_370SS
  dmi.board.vendor: Notebook
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: Notebook
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd04/08/2014:svnNotebook:pnW35xSS_370SS:pvrNotApplicable:rvnNotebook:rnW35xSS_370SS:rvrNotApplicable:cvnNotebook:ct9:cvrN/A:
  dmi.product.name: W35xSS_370SS
  dmi.product.version: Not Applicable
  dmi.sys.vendor: Notebook

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