[OpenAFS-devel] Re: OpenAFS and glibc-2.2

[Derek Atkins]

Is this problem only happening on Linux 2.4-based systems?  One
potential problem is that I don't believe OpenAFS supports the
(new-to-Linux-2.4) setgroups32() syscall.  I've been told that one
difference between glibc 2.1 and 2.2 is the change to use
setgroups32() if it exists.  So if AFS doesn't hook that, you will see
this behavior.

-derek

Ulrich Drepper <drepper@redhat.com> writes:

> Russ Allbery <rra@stanford.edu> writes:
> 
> > implicit in "initializes" would be a discarding of all existing
> > memberships.
> 
> This definitely is the case.  All group memberships are wiped out.
> Look at the kernel setgroups() implementation.  Unless the groups are
> somehow also added via a NSS service (all of the services are searched
> all the time) you will not see these groups.
> 
> > Sounds to me like a glibc 2.1 bug fixed in 2.2.
> 
> I agree.  Though I don't know what could have caused the 2.1
> implementation to behave as you described.
> 
> -- 
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-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
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