Trouble: NFS via TCP
olli at lurza.secnetix.de
Tue Nov 14 15:37:59 UTC 2006
Sorry for the late answer, but I was offline (deliberately)
during the weekend, and hadd too much work yesterday.
Julian H. Stacey wrote:
> Using a normal UDP mount I had eratic come & go problems with amd
> until I added to rc.conf
> nfs_server_flags="-u -t -n 10"
> Turns out I had too few. 10 fixed it.
Thanks for the suggestion, but I don't think it applies
I'm using the default (-n 4), but this is the only mount
from localhost, so that should be sufficient. Besides,
the same problem occurs when trying to mount from a NetApp
filer. Also, I don't have "erratic come & go problems",
but the mount(8) command simply hangs right from the start.
I'm not using amd, if that matters (I don't think it does).
Since I weren't able to track this problem down, I now tend
to think that it's a bug in the NIC (either broken hardware
or a bug in the bge(4) driver) that makes it break TCP NFS
packets somehow. I don't have any other explanation.
Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd
Any opinions expressed in this message may be personal to the author
and may not necessarily reflect the opinions of secnetix in any way.
"... there are two ways of constructing a software design: One way
is to make it so simple that there are _obviously_ no deficiencies and
the other way is to make it so complicated that there are no _obvious_
deficiencies." -- C.A.R. Hoare, ACM Turing Award Lecture, 1980
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