Re: [BK PATCH 1/4] fix NGROUPS hard limit (resend)

[Tim Hockin <thockin@sun.com>]

Jesse Pollard wrote:

> Does it actually work with NFS???? or any networked file system?
> Most of them limit ngroups to 16 to 32, and cannot send any data
> if there is an overflow, since that overflow would replace all of the
> data you try to send/recieve...

NFS has a smaller limit, that is correct.  An unfortunate limitation.

> And I really doubt that anybody has 10000 unique groups (or even
> close to that) running under any system. The center I'm at has
> some of the largest UNIX systems ever made, and there are only
> about 600 unique groups over the entire center. The largest number
> of groups a user can be in is 32. And nobody even comes close.

I'm glad it doesn't affect you.  If it was a more common problem, it 
would have been solved a long time ago.  It does affect some people, 
though.  Maybe they can redesign their group structures, but why not 
remove this arbitrary limit, since we can?

Tim

-- 
Tim Hockin
Systems Software Engineer
Sun Microsystems, Linux Kernel Engineering
thockin@sun.com