From: Miko Larsson on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1923#note_1042...
Also, FWIW, see !961:
We also want to enable the structleak and stackleak GCC plugins, but
currently they're causing a lot of pain with slight GCC mismatches. Until that
problem gets resolved upstream, disable them for now.
INIT_STACK_ALL_ZERO is, afaik, functionally identical to structleak, so even
if there's a performance impact it's still something that's wanted.