[Qemu-devel] [Bug 1776920] Re: qemu-img convert on Mac OSX creates corrupt images

[John Snow]

Great, thanks for the additional info!

It sounds like maybe something to do with our sparse detection on APFS
is broken. Maybe lseek calls are failing? This is a bad problem because
it means that any read from an APFS source could break similarly.

I'm still a bit tied down with other work at the moment, but I will try
to address this prior to the 3.0 release if nobody else gets to it
first.

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https://bugs.launchpad.net/bugs/1776920

Title:
  qemu-img convert on Mac OSX creates corrupt images

Status in QEMU:
  New

Bug description:
  An image created by qemu-img create, then modified by another program
  is converted to bad/corrupt image when using convert sub command on
  Mac OSX. The same convert works on Linux. The version of qemu-img is
  2.12.

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