[Bug 1848556] Re: qemu-img check failing on remote image in Eoan

[Max Reitz]

Hi Christian,

I don’t see any issue but the fact that the whole series should be
backported (0487861685294660b23bc146e1ebd5304aa8bbe0 through
bfb23b480a49114315877aacf700b49453e0f9d9, maybe also c34dc07f9f01cf686,
but that isn’t strictly necessary).

Max

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https://bugs.launchpad.net/bugs/1848556

Title:
  qemu-img check failing on remote image in Eoan

Status in QEMU:
  Confirmed
Status in qemu package in Ubuntu:
  Triaged
Status in qemu source package in Eoan:
  Triaged
Status in qemu source package in Focal:
  Triaged

Bug description:
  The "qemu-img check" function is failing on remote (HTTP-hosted)
  images, beginning with Ubuntu 19.10 (qemu-utils version 1:4.0+dfsg-
  0ubuntu9). With previous versions, through Ubuntu 19.04/qemu-utils
  version 1:3.1+dfsg-2ubuntu3.5, the following worked:

  $ /usr/bin/qemu-img check  
http://10.193.37.117/cloud/eoan-server-cloudimg-amd64.img
  No errors were found on the image.
  19778/36032 = 54.89% allocated, 90.34% fragmented, 89.90% compressed clusters
  Image end offset: 514064384

  The 10.193.37.117 server holds an Apache server that hosts the cloud
  images on a LAN. Beginning with Ubuntu 19.10/qemu-utils 1:4.0+dfsg-
  0ubuntu9, the same command never returns. (I've left it for up to an
  hour with no change.) I'm able to wget the image from the same server
  and installation on which qemu-img check fails. I've tried several
  .img files on the server, ranging from Bionic to Eoan, with the same
  results with all of them.

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