Re: NFS -current

From: Patric Mrawek <patric_at_argv.de>
Date: Wed, 26 Mar 2003 10:38:12 +0100
Ian Dowse wrote:

> >On several clients (-DP1, -DP2, 4-stable) mounting a nfs-share
> >(mount_nfs -i -U -3 server:/nfs /mnt) and then copying data from that
> >share to the local disk (find -x -d /mnt | cpio -pdumv /local) results
> >in lost NFS-mount.
> >
> >client kernel: nfs server server:/nfs: not responding 10 > 9
> 
> I'm not sure what you mean by a "lost" mount. Do all further accesses
> to the filesystem hang?

I meant there's no response from the nfs-server. I can interrupt the
»find | cpio« and restart it. When restarting directly after that it
will hang too, but if I wait for about 30 seconds and restart it, the
same amount of data is copied.

> It is normal enough to get the above 'not responding' errors
> occasionally on a busy fileserver, but only if they are almost
> immediately followed by 'is alive again' messages.

There's only one client and the server isn't busy.

> If the filesystem stops working and doesn't recover, could you run
> `tcpdump -nepX -s 1600 udp port 2049' when it hangs and record a
> few packets?

I'll send you private email.

(Doing the same on an loopback mounted filesystem on the server itself
works fine.)

Patric
-- 
The problem with troubleshooting is that trouble shoots back.
Received on Wed Mar 26 2003 - 00:38:14 UTC

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