Hi Jan,
> commit ebfb71d45615698040818a68b7dc34996ff4c046
> gpg: Signature made Fri 16 Jun 2017 07:22:49 AM EDT
> gpg: using RSA key DB34CB51D25C9408156FCDD6A12F87978D701B99
> gpg: Can't check signature: No public key
> Author: Jan Nieuwenhuizen <[email protected]>
> Date: Thu Jun 15 19:22:00 2017 +0200
>
> tests: Allow setting of qemu memory-size for system tests.
>
> * gnu/system/vm.scm (common-qemu-options): Remove hardcoded "-m 256".
> (system-qemu-image/shared-store-script): New keyword argument:
> #:memory-size.
This commit was signed using a different key than the one you've been
using for your other commits, and different from the one you have
registered on Savannah.
Is DB34CB51D25C9408156FCDD6A12F87978D701B99 your key?
Mark