2023-07-27 18:14 GMT+03:00, Theo de Raadt <dera...@openbsd.org>: > S V <ner...@gmail.com> wrote: > >> 2023-07-27 17:24 GMT+03:00, Theo de Raadt <dera...@openbsd.org>: >> > You don't explain why you are trying to enable floating point register >> > use in the kernel. >> >> I just have CPU with it (Cortex-a57 with NEON), so was toying with it >> trying to look if I get more performance. >> Got this error and decided to post, thinking - maybe I got some "not >> yet discovered" problem. >> >> I'm not good with kernel development (sent only simple patches) so was >> curious about it. > > What you are trying to do won't work at all. If the kernel uses floating > point registers, it must save/restore them at multiple types of context > switching points, which is why kernels normally do not do this, except > in very controlled fashion. One doesn't set a compile option, and get > this. You are in way over your head > >
Ohh, thanks for explanation! PS And sorry about empty subject line, just noticed it.
