From: "Assarsson, Emil" <Emil.Assarsson@sonyericsson.com>
To: "'linux-nfs@vger.kernel.org'" <linux-nfs@vger.kernel.org>
Date: Wed, 9 Mar 2011 16:20:42 +0100
Subject: mountd --manage-gids supports max 100 groups?
Message-ID: <2BF070A7A2375D46BA1B6087F8D5DCB678B8E772B8@seldmbx01.corpusers.net>
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Sender: linux-nfs-owner@vger.kernel.org
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Hi All,

Running linux kernel 2.6.32 and nfs-utils 1.2.0 (Ubuntu Lucid)

A regular user in our company usually is member of more than 300 groups. Some user even have up to 600. We want to use the --manage-gids option for mountd. However it seems to me that it is limited to about 100 groups.

The reason seems to be that there is a hard limit for mountd but also that the /proc/net/rpc/auth.unix.gid/channel won't accept more than 1008 characters as input.

I tried to adjust the code for mountd so that it tried to add up to 1000 groups but then I ran in to the channel problem.

Can someone please guide me to the place where I can adjust this limit?


Best regards

Emil Assarsson
Sony Ericsson Mobile Communications AB

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