is there a max number of groups a user can belong to?

From: Michelle DeVault (adsmigmo@YAHOO.COM)
Date: Fri Aug 16 2002 - 16:43:04 EDT


I'm having some weird permissions problems on NFS
mounted directories.

A user is unable to create/delete files on a
particular NFS mounted directory. If he logs on the
server - no problem. All problems arise from logging
in to a client that has the directory NFS mounted.

>From the client machine, he gets "the file permissions
do not allow the specified action" on trying to remove
a file. The file is owned by another user, but user#1
is in the group assigned to the file, and the group
has w perms on the file. The group on the directory
is different from the group on the file, but user#1 is
in it, and w perms are set on the directory. No
sticky bit set on the directory.

The group that is at the directory level (that user#1
is a member of) happens to be number 20 in a list of
groups that the user belongs to. If I change the
group on the directory to the group that is 16 on the
list that the user belongs to, then the user is able
to delete the file. Any group past 16 assigned to the
directory level produces the above error.

Is this a bug, or am I missing something obvious?

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