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SubjectRe: NFS regression? Odd delays and lockups accessing an NFS export.
Hi Trond,

On Mon, 18 Aug 2008 15:20:58 -0400, Trond Myklebust <> wrote:

>On Mon, 2008-08-18 at 12:02 +1000, Grant Coady wrote:
>> Hi there,
>> I've been using NFS here for years, lately there's something odd going on
>> since about a month or so. Previously reported last month:
>> Now with 2.6.27-rc3 on one of the client boxes I get a complete stall
>> at odd times when accessing the server's exported directory, cannot
>> see a pattern to it. Eventually recovers after a Ctrl-C. Nothing in
>> the server or client log files. Not easy to reproduce either.
>> The server runs at the moment.
>> Server config, etc:
>> Client config, etc:
>Please try to reproduce the hang, then do
> echo 0 >/proc/sys/sunrpc/rpc_debug
>and send the output from 'dmesg'...

dmesg and logs from client machine showed nothing, dmesg from server:

-pid- proc flgs status -client- -prog- --rqstp- -timeout -rpcwait -action- ---ops--

(nothing, nada, zilch after what looks like the header line)

Situation, first use of 'df' after reboot, client machine hung for many
seconds before the /home/common export showed up, this is not repeatable.
Mounting another export and doing 'df' again had no delays.

Client is running 2.6.27-rc3-git5 (x86_64) at the moment, configs, etc

Server as above. Am I supposed to have some debugging turned on in the


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