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Date:      Wed, 28 Nov 2001 14:06:30 +1100
From:      Kal Torak <kaltorak@quake.com.au>
To:        FreeBSD Stable <freebsd-stable@freebsd.org>, FreeBSD ISP <freebsd-isp@freebsd.org>
Subject:   Whats with this -> sendto: No buffer space available
Message-ID:  <3C0454B6.6000102@quake.com.au>

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This keeps happening...

I have adsl running on my gateway using pppoe with userppp
and its internal nat enabled, also a fairly simple ipfw config
blocking a few ports...

Now every so often all data stops and checking on the gateway
trying to send something I get the "sendto: No buffer space available"
error and have to reboot and everything is fine again...

It seems to happen at random, sometimes its fine for a week,
sometimes only a few days and it happens... There is nothing
of interest logged in ppp.log or security or messages...

What causes this buffer to fill up and not empty? Here in australia
telstras adsl is really crap and you often cant get more than 2
hops past the peer... Im wondering if its something to do with
apps like bitchx trying to constantly reconnect when the network
is down filling up the buffer???

But shouldnt the buffer eventualy empty as things time out or something?
There is really not that much that should be trying to connect besides
a few irc sessions...

Anyway any ideas? Should I tweek some settings? Increase the max users
in the kernel? This is a really annoying little problem...

Thanks!!


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