[Bug 1870039] Re: windows qemu-img fails to convert vhdx, assertion failure

[Rafael Rivera]

Still a bug, resetting status per new bug tracker guidance.

Also, re-tested with  v6.0.0-11869-g800a25ea45-dirty. Results in error:
ERROR:../../../util/oslib-win32.c:61:qemu_try_memalign: assertion failed: 
(is_power_of_2(alignment))


** Changed in: qemu
       Status: Incomplete => New

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1870039

Title:
  windows qemu-img fails to convert vhdx, assertion failure

Status in QEMU:
  New

Bug description:
  When attempting to convert Microsoft's 10X emulator image (19563) vhdx
  [1], qemu-img terminates abruptly with an assertion failure. (Newer
  versions of the vhdx exhibit the same issue.)

  > qemu-img.exe convert flash.vhdx flash.vhd
  **
  ERROR:util/iov.c:335:qemu_iovec_concat_iov: assertion failed: (soffset == 0)
  Bail out! ERROR:util/iov.c:335:qemu_iovec_concat_iov: assertion failed: 
(soffset == 0)
  Exception code=0x80000003 flags=0x0 at 0x00007FFAFDC59302

  Tested with qemu-img.exe --version
  qemu-img version 4.2.50 (v4.2.0-676-g3a63b24a1b-dirty)

  Possibly related: 1719870

  Partial Powershell cmdlet output:

  PS> Get-Vhd flash.vhdx

  VhdFormat               : VHDX
  VhdType                 : Dynamic
  FileSize                : 8365539328
  Size                    : 137438953472
  MinimumSize             : 137438953472
  LogicalSectorSize       : 4096
  PhysicalSectorSize      : 4096
  BlockSize               : 1048576
  ParentPath              :
  DiskIdentifier          : 7BE7C459-AE5D-451A-9368-05875120F702
  FragmentationPercentage : 11
  Alignment               : 1
  Attached                : False
  DiskNumber              :
  IsPMEMCompatible        : False
  AddressAbstractionType  : None
  Number                  :

  [1] https://1drv.ms/u/s!AnjdAnZZcu-GpNFK_-tcNAq_4Aug8w?e=5JB6s0

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1870039/+subscriptions