Comment 6 for bug 1620407

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Christian Ehrhardt  (paelzer) wrote : Re: [Bug 1620407] Re: vm startup broken when interface definition has script tag

On Thu, Jan 12, 2017 at 5:55 PM, Matthias Ferdinand <mf+ubuntu1@14v.de>
wrote:

> This error message "Unable to get index..." is generated by libvirt,
> before qemu is even invoked. While it is perfectly ok for interfaces
> with setup scripts to not yet exist before qemu can invoke the script,
> libvirt 1.3 nonetheless pre-checks for its existence.
>
> This is what the bug report and the patch is about. With the patch
> applied (removal of existence check for scripted interfaces), libvirt
> 1.3 again does the right thing.
>

Thank you so much for the explanation, that confirmed all that I saw.
Yet I wonder since newer libvirt works (see my experiments before) they
seem to have fixed that "a different way".
I'd pretty much prefer to fix it by backporting that if applicable.

Do you, based on your work on this, happen to know what the (maybe more
complex) upstream fix for this was?