idmapd maps valid group to "nobody" and "65534"

[Kevin Coffman]

I recall there was a problem similar to this in libnfsidmap that was
fixed a while back.  Can you tell me what version of libnfsidmap you
have?

The latest, non-beta, version is available here:
http://www.citi.umich.edu/projects/nfsv4/linux/libnfsidmap/libnfsidmap-0.20.tar.gz

On Thu, Jul 24, 2008 at 2:11 PM, Marten Gajda
<marten.gajda at fernuni-hagen.de> wrote:
> Hello,
>
> in my setup I have an OpenLDAP directory for users and groups and a
> Solaris 10 NFSv4 server to distribute home directories.
> Client machine is running an OpenVZ Linux kernel and Gentoo.
>
> My Problem is:
> I have a group "benutzer" with gid 10001 which has 59 members.
> When I add a 60th member to the group "benutzer" idmapd doesn't map this
> group correctly anymore (on the client):
>
> Jul 24 18:13:56 gaia rpc.idmapd[2999]: Client 0: (group) id "10001" ->
> name "nobody"
> Jul 24 18:14:30 gaia rpc.idmapd[2999]: Client 0: (group) name
> "benutzer at creavac" -> id "65534"
>
> Everthing else still is mapped properly (all other groups have less
> members).
> After removing the 60th user from "benutzer" idmapd maps correctly again:
>
> Jul 24 18:15:05 gaia rpc.idmapd[2999]: Client 0: (group) id "10001" ->
> name "benutzer at creavac"
> Jul 24 18:15:30 gaia rpc.idmapd[2999]: Client 0: (group) name
> "benutzer at creavac" -> id "10001"
>
> "getent group benutzer" always gives the correct member list and the
> server also maps correctly.
> Local group name resolution (on the client) seems to work fine too.
>
> My idmap.conf looks like:
>
> [General]
>
> Verbosity = 3
> Pipefs-Directory = /var/lib/nfs/rpc_pipefs
> Domain = creavac
>
> [Mapping]
>
> Nobody-User = nobody
> Nobody-Group = nobody
>
> I don't know if this is a idmapd, OpenLDAP or nsswitch (-configuration)
> issue, but as everything else seems to work fine, I'm starting here to
> search.
> Maybe someone can give me a hint.
>
> Thank you
>
> Marten
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