Looks like umockdev doesn't support those architectures very well.

umockdev lives at https://github.com/martinpitt/umockdev/

You can disable the test suite with --disable-umockdev on those architectures in the meanwhile.

I can reproduce this on a Debian porter box.

umockdev does support these architectures, its own tests pass on all supported Debian arches (https://buildd.debian.org/status/package.php?p=umockdev).

The problem here is that this call is (subtly) wrong:

        umockdev_testbed_add_device (testbed, "drm", "dev3", NULL,
                                     "ID_FOR_SEAT", "drm-pci-0000_00_02_0", NULL);

There is just a NULL terminator for the attributes list, but no NULL terminator for the (empty) properties list. Thus the varargs parser tries to read the args after the NULL and sees random stack data. If you change it to 

        umockdev_testbed_add_device (testbed, "drm", "dev3", NULL,
                                     "ID_FOR_SEAT", "drm-pci-0000_00_02_0", NULL, NULL);

then it works just fine.

(In reply to Martin Pitt from comment #2)
> I can reproduce this on a Debian porter box.
> 
> umockdev does support these architectures, its own tests pass on all
> supported Debian arches
> (https://buildd.debian.org/status/package.php?p=umockdev).
> 
> The problem here is that this call is (subtly) wrong:
> 
>         umockdev_testbed_add_device (testbed, "drm", "dev3", NULL,
>                                      "ID_FOR_SEAT", "drm-pci-0000_00_02_0",
> NULL);
> 
> There is just a NULL terminator for the attributes list, but no NULL
> terminator for the (empty) properties list. Thus the varargs parser tries to
> read the args after the NULL and sees random stack data. If you change it to 
> 
>         umockdev_testbed_add_device (testbed, "drm", "dev3", NULL,
>                                      "ID_FOR_SEAT", "drm-pci-0000_00_02_0",
> NULL, NULL);
> 
> then it works just fine.

Filed https://github.com/martinpitt/umockdev/issues/54 about adding sentinel checks.

commit 08412886f840603db9127d3d66ecbc1cc2326f43
Author: Bastien Nocera <hadess@hadess.net>
Date:   Mon Feb 20 16:17:50 2017 +0100

    tests: Fix crash on plenty of architectures
    
    umockdev_testbed_add_device() expects 2 sentinels, one for the sysfs
    attributes, one for the udev properties.
    
    Spotted by Martin Pitt <martinpitt@gnome.org>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=778734