Re: CPUTYPE considered harmful? (was: Lot's of SIGILL, SIGSEGV)

On Montag, 18. August 2003 23:15 Uhr +0200 Pawel Jakub Dawidek 
<nick_at_garage.freebsd.pl> wrote:

> On Sun, Aug 17, 2003 at 08:00:54PM -0700, David O'Brien wrote:
> +> > This is a FAQ. In the future, please search the archives before
> posting. +> >
> +> > At this moment in time, 'p4' isn't a safe CPUTYPE (It produces broken
> +> > code). 'p3' or 'i686' are what's recommended for Pentium 4s.
> +>
> +> Andre, I think you are out of date -- CPUTYPE=p4 is now safe with GCC
> +> 3.3.1.
>
> I think he is right, because when upgrading host where was gcc3.2 to
> current -CURRENT (with gcc3.3) 'make world' builds make(1) in first
> place and it is builded by gcc3.2 with CPUTYPE=p4, so it will be broken.
>
> So gcc have to be upgraded in first place (with CPUTYPE=p3).

Hhm, sounds reasonable.

However, I had the exact same problem updating from a 5.1-RC to a recent 
current on a P III 900, and there, I had CPUTYPE=p3 in make.conf.

Removing CPUTYPE eventually gave me back working systems (I did restore 
5.1-R bits prior to make world). Unfortunatly, I don't have the resources 
to investigate this further, but for the time being, I will not use CPUTYPE 
until others can confirm it's safe :-)


Thanks all,
Stefan

-- 
Stefan Bethke, Phone +49 170 346 0140