On Thu, Jan 29, 2026 at 10:31:24AM +0100, ????????? wrote: > Which is the reason for the single-processor kernel being shipped?
Because it's useful. I've worked with MP hardware that booted bsd.sp fine but crashed on bsd.mp. > I am not > sure about the history, The SMP code was originally developed as a separate branch for some time before being merged. > but I suspect that single-core processors were not > commercially available since at least 10-15 years. That's largely irrelevant, anyway - the MP kernel will, (or at least should), actually run quite happily on single processor machines. If you have a single core machine that boots bsd.sp, but not bsd.mp, that might be interesting.
