"NFS: readdir reply truncated!" messages

"NFS: readdir reply truncated!" messages

[Robert Williamson]

I'm these seeing messages occaisionally using 'dmesg' on both of my test
clients.   What exactly does this mean? Is the packet size being truncated?


Robert V. Williamson <robbiew@us.ibm.com>
Linux Test Project
IBM Linux Technology Center
Web: http://ltp.sourceforge.net
IRC: #ltp on freenode.irc.net
====================
"Only two things are infinite, the universe and human stupidity, and I'm
not sure about the former." -Albert Einstein




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Re: "NFS: readdir reply truncated!" messages

[Trond Myklebust]

>>>>> " " == Robert Williamson <robbiew@us.ibm.com> writes:

     > I'm these seeing messages occaisionally using 'dmesg' on both
     > of my test clients.  What exactly does this mean? Is the packet
     > size being truncated?

It means that the packet sent by the server caused the client to
overrun because the end-marker was not found (i.e. the client found
itself attempting to read beyond the end of the packet).

Two possibilities:
  - The server is failing to set the end-marker.
  - The server is sending a packet that exceeds the 4k buffer
    advertised by the client, and so the packet is truncated before we
    reach the end-marker.

This is a non-fatal error, since the client should have no problems
recovering (it detect the overrun, and inserts its own end-marker)
however we still send out a warning message.

Cheers,
  Trond


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