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From: Joan Picanyol <lists-freebsd-stable@freebsd.org>
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	Robert Watson <rwatson@freebsd.org>
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cc: Robert Watson <rwatson@freebsd.org>
Subject: Re: process stuck in nfsfsync state
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* Joan Picanyol <lists-freebsd-stable@biaix.org> [20041025 18:09]:
> * Robert Watson <rwatson@freebsd.org> [20041025 14:24]:
> > - It would be useful to see if less complicated NFS meta-transactions than
> >   "Start GTK" can trigger the problem.  For example, doing a large dd to a
> >   file in NFS, varying the blocksize to see if you can find useful
> >   thresholds that trigger the problem.  I see a lot of successful 512 byte
> >   writes in the trace, but larger datagram sizes of 8192 for writes seem
> >   to have problems.
> 
> Now this is interesting:
> 
> dd if=/dev/urandom of=/fs/bulk/mount/dummy bs=512 count=14
> 
> wedges the NFS mount point 100% of the times. Lowering the count to 13
> doesn't reproduce the hang.

Oh well, I can't reproduce this any more after upgrading. Go figure...

tks
-- 
pica