Comment 8 for bug 1832915

Note:
- numad is "only" in universe in all releases
- nothing depends on it
- it is on 0.5+20150602-5 which seems rather old
- But upstream commits [1] since 2015 are minimal

TL;DR no (somewhat dead) upstream fix for that available to cherry-pick

Hmm, the above might have been a red herring.
I get 24 bytes size even in cases where the initial value was null.

Maybe the pure size of the set_p isn't waht matters.
In any case lets do a non-optimized build to get around debugging issues like:

(gdb) p node[node_id].cpu_list_pnode[node_id].cpu_list_p->bytes
value has been optimized out

Also I realized that this is a static var not only to be local but in the common sense to keep content across function calls. So initializing on init will be wrong :-)

[1] https://pagure.io/numad