hw/dma: Print error message only once

[Philipp Hahn]

Some Windows VMs triggers qemu-dm to print a log message multiple times and fills up the log-file with 50 MiB / minute.

It's enough to print the message only once.

The patch was sent upstream but I never got feedback: <http://lists.xen.org/archives/html/xen-devel/2014-05/msg01209.html>

For reference here the entry in our bug-tracker: <https://forge.univention.org/bugzilla/show_bug.cgi?id=35488>

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "hw/dma: Print error message only once" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

[Miriam España Acebal (mirespace)]

The mentioned version of xen (in the links) seems to belong to a Ubuntu series which is now in End of Life time and this bug doesn't qualify for it, so this bug will not be fixed for that release.