Date: Wed, 19 Sep 2001 04:59:43 +0300 From: Giorgos Keramidas <charon@labs.gr> To: Dimitry Andric <dim@xs4all.nl> Cc: "Hartmann, O." <ohartman@klima.physik.uni-mainz.de>, freebsd-stable@FreeBSD.ORG, freebsd-questions@FreeBSD.ORG Subject: Re: MAKEDEV 4.4-STABLE still offering problems Message-ID: <20010919045943.C2154@hades.hell.gr> In-Reply-To: <10350278416.20010918231603@xs4all.nl> References: <20010918182942.R17334-101000@klima.physik.uni-mainz.de> <10350278416.20010918231603@xs4all.nl>
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--oJ71EGRlYNjSvfq7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Dimitry Andric <dim@xs4all.nl> wrote: >=20 > However, the proper solution is to follow the instructions from > /etc/defaults/make.conf, which say: >=20 > # If you experience any problems after setting this flag, please unset > # it again before submitting a bug report or attempting to modify code. > # It may be that certain types of software will become unstable after bei= ng > # compiled with processor-specific (or higher - see below) optimization f= lags. > # If in doubt, do not set CPUTYPE or CFLAGS to non-default values. >=20 > So I'm now in the process of removing CPUTYPE from all FreeBSD boxes I > manage, and rebuilding them. :) I did try putting some agressive optimizations to /etc/make.conf once. All kinds of weird problems started popping up, with the most annoying of t= hem all an invalid checksup on all UDP and TCP packets my machine tried to send over dialup interfaces like ppp0 or tun0. Switching to a plain `-O -pipe' setting in make.conf made all of the proble= ms go magically away. That was the last time I used optimizations in buildwor= ld and buildkernel, as far as I remember :) Strange because in the Linux camp they are all madly optimizing, but since I hate unpredictability compared to a loss of speed, the choise is obvious for me thereafter. Just my $0.2 -giorgos --oJ71EGRlYNjSvfq7 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (FreeBSD) iD8DBQE7p/wPnx3zGsay9fwRAkjuAJ43ixfvEDJ0khV3cP3s2V8nuZ5z0wCgiD1J QgfgDRmtZK60m9R4UlWG54I= =594X -----END PGP SIGNATURE----- --oJ71EGRlYNjSvfq7-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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