Date: Tue, 18 Mar 2003 15:55:52 -0500 From: Chris BeHanna <cbehanna@panasas.com> To: stable@freebsd.org Subject: Re: setting kern.ngroups Message-ID: <200303181555.52996.cbehanna@panasas.com> In-Reply-To: <1372.192.168.1.5.1048020389.squirrel@wuhjuhbuh.afraid.org> References: <4394.192.168.1.5.1048003806.squirrel@wuhjuhbuh.afraid.org> <1048011633.2072.1.camel@pyanfar.ece.cmu.edu> <1372.192.168.1.5.1048020389.squirrel@wuhjuhbuh.afraid.org>
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On Tuesday 18 March 2003 15:46, Brian Szymanski wrote:
> > 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.)
>
> Ahhh, no problem. Fortunately we have source for all the code we are
> running on the machine...
>
> Which brings up another question. Does anyone know of a good way to
> rebuild all ports, without dealing with dependency hell?
Stupi^H^H^H^H^HBrave souls can do so via:
cd /usr/ports/sysutils/portupgrade
make install clean
# edit /usr/local/etc/pkgtools.conf to taste
portsdb -uU
pkgdb -uF
portupgrade -af
#
# wait a very long time if you have X + KDE or X + GNOME installed
# otherwise, wait a merely long time
That will rebuild *everything*. It gives me the shudders, though,
because there are inevitably going to be broken ports. It's a good
idea to save the old packages portupgrade makes for awhile, so that
you can back out a broken port to the previous known working version
(when that is possible).
--
Chris BeHanna
Software Engineer (Remove "bogus" before responding.)
behanna@bogus.zbzoom.net
Turning coffee into software since 1990.
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