Apparently 2G is too low for various real-life systems. But raising it
universally above 2^32 sounds wrong to me, since that makes no sense on
32bit systems, that we still support.
Hence, let's raise the limit to 32G on 64bit systems, and *lower* it to
1G on 32bit systems.
32G is 4 orders of magnitude higher then the old settings. Let's hope
that's enough for now. Should this not be enough we can raise it
further.
Fixes: #22076
Lennart Poettering
e677041e7a