linux-kernel - REGRESSION: cannot change file access permissions on files NFS-mounted

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Date:	Sat, 5 May 2007 10:40:37 -0500
From:	florin@...ha.net (Florin Iucha)
To:	Neil Brown <neilb@...e.de>,
	Trond Myklebust <Trond.Myklebust@...app.com>
Cc:	linux-kernel@...r.kernel.org
Subject: REGRESSION: cannot change file access permissions on files NFS-mounted

Hello,

This morning I updated the kernel on my workstation to the current git 
tree (62ea6d80211ecc88ef516927ecebf64cb505be3f).   Upon reboot, I
cannot change file access permissions of files in a directory that is
nfs mounted (using NFS4):

   $ chmod 0600 $path
   chmod: Changing permissions of `$path': Input/output error

In the kernel log I am getting these gems:

   [  275.990233] decode_attr_group: reply buffer overflowed in line
   2678.<4>decode
   _attr_group: reply buffer overflowed in line
   2678.<4>decode_attr_group: reply bu
   ffer overflowed in line 2678.<4>decode_attr_group: reply buffer
   overflowed in li
   ne 2678.<4>decode_attr_group: reply buffer overflowed in line
   2678.<4>decode_att
   r_group: reply buffer overflowed in line 2678.

The server is Linux running Debian testing with the kernel updated to 
2.6.20-1-686 from
(http://ftp.us.debian.org/debian/pool/main/l/linux-2.6/linux-image-2.6.20-1-686_2.6.20-3_i386.deb)

Kernel 2.6.21 works fine on the client.

Cheers,
florin

-- 
Bruce Schneier expects the Spanish Inquisition.
      http://geekz.co.uk/schneierfacts/fact/163

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