Date: Wed, 28 Nov 2001 15:51:49 +1100 (EST) From: Rowan Crowe <rowan@sensation.net.au> To: freebsd-isp@freebsd.org Cc: freebsd-stable@freebsd.org Subject: Re: Whats with this -> sendto: No buffer space available Message-ID: <Pine.BSF.4.21.0111281546510.54561-100000@velvet.sensation.net.au> In-Reply-To: <3C0454B6.6000102@quake.com.au>
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bOn Wed, 28 Nov 2001, Kal Torak wrote: > 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??? I see this error occasionally on a 56k modem connection. Sometimes the modem half dies (CD light on but not passing data), and usually drops out within a few minutes. If there's a lot of outbound data in this period, the error pops up. Presumably the error refers to an output buffer being full, in my case most likely because the modem has signalled it cannot take any more data, and ultimately packets cannot be shed from the packet queue. I haven't used PPPoE but I would guess it means that your client cannot reach the other end of the tunnel, which is effectively the same thing - output queue fills and overflows. Cheers. -- Rowan Crowe camrecord.com / camdiscover.com / Sensation Internet Services Melbourne, Australia To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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