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Date: Thu, 30 Jan 1997 12:19:59 -0800 (PST)
From: Chris Timmons <skynyrd@opus.cts.cwu.edu>
To: Bruce Evans <bde@zeta.org.au>
cc: current@freebsd.org
Subject: Re: nfs hang
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I had a similar hang with a -current from a few days ago.  I v2 mounted
the -current box's /usr from a releng_2_2 box and was in the middle of a
cvs update on the -current machines /usr/src when everything stopped.  I
was still able to telnet to the current machine and access that file
system ok, but the cvs process on the 2_2 machine was hung in an nfs state
(that I don't remember at the moment :(

Can you suggest a debugging strategy to help me pin this down further?
When I flip things around and mount the cvs repository from 2_2 system to
-current (i.e. -current now is client) I haven't seen any further hangs
and I've thrashed that with at least 3 cvs updates of the source tree.

Whether or not it matters the two machines have a crossover cable between
two 100mb PCI ethernet nics.

-Chris

On Fri, 31 Jan 1997, Bruce Evans wrote:

> 	mount -t nfs -o-3 localhost:/usr /mnt
> 	cd /usr/writable-dir
> 	iozone auto
> 	# get bored with this and hit ^C
> 
> caused iozone to hang on "nfsaio" and most or all further fs activity to
> hang somewhere.  nfs v2 seemed to work better but I didn't try it for as
> long.
> 
> Bruce
>