[ic] IC setup in Multi permission mode - sort of off topic

[interch]

I was afraid that was the case...  

Chris


On Mon, 5 Nov 2001, Kevin Walsh wrote:

> > Ok this isn't particular to IC per say, but I didn't find a quick answer
> > to this anywhere else, including all the support forums at Redhat.
> > 
> > We started running IC under Redhat 7.2, and I almost immediately ran into
> > hard coded limitations on the number of groups that a process can belong
> > to. The default is 32, pretty low if you ask me but oh well...  Ok so
> > anyways I modified NGROUPS and NGROUPS_MAX in limits.h and
> > param.h, recompiled, not it...  Do I have to rebuild glibc also?  What am
> > I missing?
> >
> You would have to rebuild the kernel, the C compiler, any other
> compilers you have, C libraries etc., possibly Perl and some Perl
> modules, applications and a bunch of other stuff I haven't thought
> of.
> 
> Once you have done all this, you will find that NGROUPS is used
> all over the kernel and are left with the question "what is going
> to break now that I've changed this?"  NFS?
> 
> Some people have set NGROUPS_MAX to 256 without any trouble, others
> have not.  I have no need for anywhere near 32 group memberships per
> user so I haven't looked into the implications at all.  Give it a go
> if you feel brave.
> 
> Good luck.
> 
> -- 
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