Maxime Devos schreef op zo 08-08-2021 om 11:06 [+0200]:
> +                              ;; The lsns tests can fail due to ioctl(_, NS_GET_USERNS)
> +                              ;; returning ENOTTY, indicating this kernel does not
> +                              ;; support user namespaces.  Curiously, this test can fail
> +                              ;; on i686 even if the same test passes on x86_64 on the
> +                              ;; same machine.  See <https://issues.guix.gnu.org/49933>;.

This happend with a 5.10.47 kernel.  According to ioctl_ns(2), NS_GET_USERNS
is available since Linux 4.9.  I wonder if this happens on i686 kernels as well,
and if some extra things needs to be enabled in the kernel configuration.

Greetings,
Maxime.