Subject: Re: kernel panic!
To: Riccardo Mottola <rollei@tiscalinet.it>
From: Michael <macallan18@earthlink.net>
List: port-macppc
Date: 06/25/2005 10:59:45
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Hello,

> since I already have enabled this and the cache detect stuff, this
> isn't a generic kernel anymore. SO how do I set optimization options?

CFLAGS=3D or COPTS=3D in your /etc/mk.conf.

> I thought current kernel was already build with at least -O1 which is
> reasonable.

No idea, mine are all built with -O2 -mcpu=3Dwhatever -mtune=3Dwhatever -
didn't see the MCHK panic on my iBook G4 yet but it's no 7400 so that
may not be relevant anyway.

> However in my persona programmers experience, it is very rare for a
> compiler to fail when NOT optimizing. If such things occour it was
> almost always a problem of my code (pointer problem, initializations
> problems). SO I point out that there is some flakey code out there.

Most definitely, the optimization apparently compensates it for some
reason.

have fun
Michael

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