Date: Sat, 14 Apr 2007 01:50:39 -0400 From: Kris Kennaway <kris@obsecurity.org> To: "[LoN]Kamikaze" <LoN_Kamikaze@gmx.de> Cc: Benjamin Lutz <mail@maxlor.com>, ports@freebsd.org, Robert Noland <rnoland@2hip.net>, pav@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: parallel builds revisited Message-ID: <20070414055039.GA25882@xor.obsecurity.org> In-Reply-To: <462062B5.5050007@gmx.de> References: <200704100452.40574.mail@maxlor.com> <1176391950.1820.3.camel@rnoland-ibm.acs.internap.com> <461E5F39.1030603@gmx.de> <200704122056.51123.mail@maxlor.com> <461E8919.1080702@gmx.de> <20070414000031.GA90090@xor.obsecurity.org> <462062B5.5050007@gmx.de>
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--ZPt4rx8FFjLCG7dd Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Apr 14, 2007 at 07:12:21AM +0200, [LoN]Kamikaze wrote: > Kris Kennaway wrote: > > On Thu, Apr 12, 2007 at 09:31:37PM +0200, [LoN]Kamikaze wrote: > >=20 > >>> Btw, do you think it's possible that a port can only be built with, n= =20 > >>> parallel make jobs, but will fail with n+1? > >> No. I do not think this can be the case. > >=20 > > It certainly is the case. If a makefile has incorrectly specified > > dependencies then it may build by accident for certain values of n. > > There are also lots of ports with race conditions which means they may > > sometimes build but not always. >=20 > I am aware of the theoretical existence of such problems, but has that ev= er actually happened? In my experience the port fails whenever something is= wrong. I've never had a case where a port that didn't work because of 'mak= e -j' worked when I tried again or with a different number of jobs. Yes, even /usr/src has had those kinds of problems in the past. Kris --ZPt4rx8FFjLCG7dd Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFGIGuuWry0BWjoQKURAgC7AKDRa5IIhk/WuptROnWVEMgrCpQT6ACffX7N TMcuNLA7Qr4CBviCYNhWQzQ= =2JaJ -----END PGP SIGNATURE----- --ZPt4rx8FFjLCG7dd--
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