* Pete Zaitcev <zaitcev(a)redhat.com> wrote:
> FWIW, I have taken to CONFIG_PREEMPT=y in my hacking kernels
because
> it exposed on my clunky test machines bugs that were otherwise
> reproduced only on big honking machines with lots of parallelism.
> [...]
It helps with that, but I just don't trust it to work at all times.
It's a really kludgy code from MontaVista, developed with embedded
devices in mind. It's a certified miracle that it boots on SMP at all.
actually, the current code works pretty well - and has been brought to
the extreme via PREEMPT_RT. It boots fine on SMP and elsewhere, and it
finds us tons of bugs in every kernel release.
Ingo