[Bug 1320077] Re: Malformed file while booting

[dino99]

Maybe some patches from upstream could help, like:

 5.1.2alpha (2012-07-04)
 * liblzma:
         - Fixed a deadlock and an invalid free() in the threaded encoder.
        - Fixed liblzma.pc for static linking.
        - Fixed a few portability bugs.

 5.1.3alpha (2013-10-26)
      * liblzma:
          - Fixed a deadlock in the threaded encoder.
          - Made the uses of lzma_allocator const correct.
          - Added lzma_block_uncomp_encode() to create uncompressed   .xz Blocks using LZMA2 uncompressed chunks.
          - Added support for native threads on Windows and the ability   to detect the number of CPU cores.
   
      * xz:
           - Fixed a race condition in the signal handling. It was   possible that e.g. the first SIGINT didn't make xz exit
             if reading or writing blocked and one had bad luck. 
           - Threaded encoder now works together with --block-list=SIZES.

http://git.tukaani.org/?p=xz.git;a=blob;f=NEWS;hb=HEAD

** Tags added: trusty

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https://bugs.launchpad.net/bugs/1320077

Title:
  Malformed file while booting

Status in “xz-utils” package in Ubuntu:
  New

Bug description:
  When booting (cold boot), after a kernel is selected into grub2, it then try to start the boot process: but i get at least 50 % of the time, either "malformed file" message or "early console decompression error"
  This happen with all the kernels used: from 3.11 to 3.15

  That issue can happen with the first 2 cold boot, sometime only the
  first one. Reboot never works, need to do a cold boot.

  Booting usually with 'upstart' or with 'systemd' does not matter about
  that issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xz-utils 5.1.1alpha+20120614-2ubuntu2
  ProcVersionSignature: Ubuntu 3.15.0-1.2-generic 3.15.0-rc5
  Uname: Linux 3.15.0-1-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.2-0ubuntu3
  Architecture: i386
  CurrentDesktop: GNOME
  Date: Fri May 16 07:00:53 2014
  Dependencies:
   gcc-4.9-base 4.9.0-3ubuntu1
   libc6 2.19-0ubuntu6
   libgcc1 1:4.9.0-3ubuntu1
   liblzma5 5.1.1alpha+20120614-2ubuntu2
   multiarch-support 2.19-0ubuntu6
  SourcePackage: xz-utils
  UpgradeStatus: No upgrade log present (probably fresh install)

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