Check your server logs on the NFS server.  I've had a similar problem
with a Solaris NFS server.  It turns out there was a bug in the NIC
driver causing my network connection to randomly lose the cable link.



On 13 Dec 2001 11:18:32 -0500, Lew E. Lefton wrote:
> Hi,
> 
> I have been having some problems recently with our NFS setup.  My Linux
> clients seem to hang for several minutes and I can't figure out what is
> causing the problem. I know the "can't get a request slot" and "server not
> responding"  errors which are appearing in our logs indicate a network
> problem due to RPC timeouts, but, the NFS server does not seem to be
> overloaded and the NFS mounts to Solaris boxes on the same network are not
> having trouble. Our NFS server is running Solaris 8 and the clients are RH
> Linux 7.1.  I am running 2.4.9-12 kernel and nfs-utils-0.3.1-13, both
> from Redhat on the client.
> 
> I have "direct" nfs mounts in /etc/fstab with options
> rw,nodev,rsize=32768,wsize=32768,hard,intr,actimeo=10
> 
> I also have an autofs entry (/home) with options
> rw,nodev,rsize=32768,wsize=32768,actimeo=10
> 
> How can I tell what mount is causing the hang?  Any other 
> troubleshooting suggestions?  I am still not able to reproduce the problem 
> on demand but it is occurring several times a day.
> 
> Thanks in advance for any help.  Please reply to me as well as the list.
> 
> Cheers,
> Lew Lefton
> 
>  -----------------------------------------------------------------------
> | Lew Lefton, IT Director         | Phone:     (404) 385-0052           |
> | School of Mathematics           | FAX:       (404) 894-4409           |
> | Georgia Institute of Technology | e-mail:    [EMAIL PROTECTED]  |
> | Atlanta, GA  30332-0160         | http://www.math.gatech.edu/~llefton |
>  -----------------------------------------------------------------------
> 
> 
> 
> 
> 
> 
-- 
  Dean Brissinger  --  Systems Administrator, Vexcel Corporation
  Direct: 303-583-0278   Fax: 303-583-0246    Main: 303-444-0094
  4909 Nautilus Ct #133 Boulder, CO 80301 http://www.vexcel.com/

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