From owner-freebsd-questions Fri Jan 9 03:09:00 1998 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id DAA10668 for questions-outgoing; Fri, 9 Jan 1998 03:09:00 -0800 (PST) (envelope-from owner-freebsd-questions) Received: from implode.root.com (implode.root.com [198.145.90.17]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id DAA10656 for ; Fri, 9 Jan 1998 03:08:55 -0800 (PST) (envelope-from root@implode.root.com) Received: from implode.root.com (localhost [127.0.0.1]) by implode.root.com (8.8.5/8.8.5) with ESMTP id DAA04287; Fri, 9 Jan 1998 03:07:50 -0800 (PST) Message-Id: <199801091107.DAA04287@implode.root.com> To: sperber@informatik.uni-tuebingen.de (Michael Sperber [Mr. Preprocessor]) cc: questions@FreeBSD.ORG Subject: Re: Networking problem: RPC: No buffer space available In-reply-to: Your message of "09 Jan 1998 11:26:51 +0100." From: David Greenman Reply-To: dg@root.com Date: Fri, 09 Jan 1998 03:07:50 -0800 Sender: owner-freebsd-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk >I'm having severe network throughput problems on a 2.2.5 box with an >NE2000 clone. There's no excessive packet loss or anything else I can >pinpoint it to. However, there's one reproducible: > >lula[35] spray modas >sending 1162 packets of lnth 86 to modas ...spray: RPC: Unable to send; errno = No buffer space available > >Can anyone comment on this? "ENOBUFS" (No buffer space available) would be the proper response and is expected. Spray just blasts out a pile of (UDP?) packets, without using any sort of flow/congestion control. As soon as the interface output queue limit is reached (50 packets), the system will start to discard them and return the ENOBUFS error. Can you describe the symptoms of your 'excessive packet loss'? -DG David Greenman Core-team/Principal Architect, The FreeBSD Project