Date: 18 Mar 2003 13:20:33 -0500 From: Brandon S Allbery KF8NH <allbery@ece.cmu.edu> To: Brian Szymanski <bks10@cornell.edu> Cc: christopher@indymedia.org, freebsd-stable@freebsd.org Subject: Re: setting kern.ngroups Message-ID: <1048011633.2072.1.camel@pyanfar.ece.cmu.edu> In-Reply-To: <20030318172857.GA22835@localhost> References: <4394.192.168.1.5.1048003806.squirrel@wuhjuhbuh.afraid.org> <1048006379.40809.2.camel@rushlight.kf8nh.apk.net> <20030318172857.GA22835@localhost>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, 2003-03-18 at 12:28, Brian Szymanski wrote: > > Raising the maximum number of groups requires changes all over the > > place; even if you find them all and rebuild the world (yes, libc > > depends on it as well) you'll find that any program that looks at the > > group vector will blow up because it only has space reserved for 16 > > groups. You don't want to go there. > > Aren't these programs broken by not using NGROUPS_MAX from syslimits.h? My point is that changing syslimits.h doesn't help existing compiled code at all; you need to recompile everything that touches the group vector, which may be more code than you expect. (Arguably they should use a runtime method of sizing the group vector but I've seen very few programs that do.) -- brandon s. allbery [os/2][linux][solaris][japh] allbery@kf8nh.apk.net system administrator [WAY too many hats] allbery@ece.cmu.edu electrical and computer engineering KF8NH carnegie mellon university ["better check the oblivious first" -ke6sls] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1048011633.2072.1.camel>