[Qemu-devel] [Bug 1071236] Re: creating qcow2 image with preallocation fails if size >=4G

[Michael Tokarev]

This is fixed by commit  a3548077062dd9dc2701ebffd931ba6eaef40bec which
is included in 1.3 release of qemu.

** Changed in: qemu
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1071236

Title:
  creating qcow2 image with preallocation fails if size >=4G

Status in QEMU:
  Fix Released

Bug description:
  Steps to reproduce:
    1. run> qemu-img create -f qcow2 -o cluster_size=512,preallocation=metadata 
disk.img 4G

  Reproducible:
    Always

  Configuration:
    Gentoo Linux 3.4.9, 64b
    latest qemu available from portage (afaik this is pulled from the git repo)

  Possible workarounds:
    1. ommit preallocation=
    2. increase cluster_size
    3. reduce the image size

  Although workarounds are available, it is still a bug that could (and
  should) be fixed.

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