Date: Wed, 6 Feb 2002 13:21:26 +0000 From: Nuno Subtil <nsubtil@vega.dhis.co.it.pt> To: Jonathan Hanna <jhanna@shaw.ca> Cc: freebsd-stable@freebsd.org, freebsd-hackers@freebsd.org Subject: Re: Whats with this -> sendto: No buffer space available Message-ID: <20020206132126.A13595@vega.dhis.co.it.pt> In-Reply-To: <200202060350.g163oFG43139@207-194-143-195.dsl.axion.net>; from jhanna@shaw.ca on Tue, Feb 05, 2002 at 07:50:14PM -0800 References: <200112071631.fB7GVgr36045@h24-79-126-98.vc.shawcable.net> <200202060350.g163oFG43139@207-194-143-195.dsl.axion.net>
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On Tue, Feb 05, 2002 at 07:50:14PM -0800, Jonathan Hanna wrote: > > On 07-Dec-01 Jonathan Hanna wrote: > > > > Latest data point here: this time it was fixed mysteriously. > > After noticing it was down, "netstat -m" showed no serious mbuf > > use or peak use. "ep0" had: > > ep0: flags=cc43<UP,BROADCAST,RUNNING,OACTIVE,SIMPLEX,LINK2,MULTICAST> mtu 1500 > > and the IP address was set up correctly > > > > "tcpdump -n -i ep0" worked, and after that the behavior was back to normal. > > No restart of natd was done, no firewall rules flushed or reset. > > This is on 4.3-STABLE FreeBSD 4.3-STABLE #3: Sun Jul 15 00:27:41 PDT 2001 I have also seen these symptoms, but on an ISDN interface. The machine does NAT, and sometimes it just stops working. I can ssh into it through the "internal" NIC (an ISA NE2000 clone), but no traffic ever goes out through the ISDN interface --- any program that generates traffic through that interface returns the same error: "No buffer space available". netstat -m also shows nothing apparently wrong with mbuf usage. This happens about once or twice every two months or so, and a reboot fixes it. I can't recall seeing any special flags on the interface when this happens, nor do I remember trying to run tcpdump on the interface, but I can try that if it happens again. The ISDN card is a mysterious "combo" card which apparently does video-capture as well. The ISDN part works with the Teles S0/16.3 driver, modified to accept the card's signature. NAT is done through ipnat, and the ppp connection is managed by the userland ppp daemon. It runs 4.3-STABLE from around the beginning of May 2001. Nuno Subtil nsubtil@vega.dhis.co.it.pt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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