Re: Module Versioning Problems: How to "probe" for SMP

Andrew E. Mileski (aem@nic.ott.hookup.net)
Mon, 16 Sep 1996 10:25:33 -0400 (EDT)

> > It also would be great if we have a kernel parameter to force an SMP-kernel
> > to use only one CPU (e.g. smpboot=no). This would not need to change
> > the BIOS's setup.
>
> A one processor SMP boot isnt the same as a non SMP kernel at all. Also
> smp_num_cpus is a constant in the single processor kernel so the loops fold
> out of the single CPU kernel

... so the solution is to build a separate single processor kernel,
and have LILO boot it too.

Use an intuitive name like 'linux-smp' and have it boot by default.
Note: This is a great feature of LILO - use it! :-) It is handy to
keep a 'linux-old' for your last kernel built, and 'linux-works'
for a kernel you have personally proven reliable.

--
Andrew E. Mileski
mailto:aem@ott.hookup.net          http://www.redhat.com/~aem/
Linux Plug-and-Play Project Leader http://www.redhat.com/linux-info/pnp/
PGP Public keys are available from http://www.redhat.com/~aem/pgp-keys.txt