Bug#800845: autopkgtest: Add support for nested VMs

[Christian Seiler]

Hi Martin,

On 03/04/2016 09:31 PM, Martin Pitt wrote:
> Christian Seiler [2016-03-04 18:17 +0100]:
>> 0001-Support-nested-KVM-by-default-by-emulating-a-CPU-wit.patch
> 
> Fixed the fd leak,

Oops, sorry! ;-)

(I really should work with python more regularly.)

>   http://anonscm.debian.org/cgit/autopkgtest/autopkgtest.git/commit/?id=3a9cb0b9
>   http://anonscm.debian.org/cgit/autopkgtest/autopkgtest.git/commit/?id=a46c7a69
>   http://anonscm.debian.org/cgit/autopkgtest/autopkgtest.git/commit/?id=b6557eb02

Thanks for committing this! :-)

> Thank you! I'm running the full testsuite now, do some finishing
> touches, and will do a new upload RSN.

Ok, then I'm going to write some tests that use this feature now.
Thanks a lot for making this possible.

Question: I think we should also define a canonical way of
detecting baseimage support. I propose to use:

[ -e /dev/baseimage ]

Because that is very agnostic to details: if for example some cloud
runner also wants to support this in the future, but provides access
to a file instead of a block device, they can symlink that to
/dev/baseimage and this test would still catch that. Using -b would
be suboptimal.

Do you agree?

Regards,
Christian

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