From owner-freebsd-hackers Tue Jul 23 15:25: 9 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4D31037B400 for ; Tue, 23 Jul 2002 15:25:06 -0700 (PDT) Received: from swan.mail.pas.earthlink.net (swan.mail.pas.earthlink.net [207.217.120.123]) by mx1.FreeBSD.org (Postfix) with ESMTP id B67AF43E65 for ; Tue, 23 Jul 2002 15:25:05 -0700 (PDT) (envelope-from tlambert2@mindspring.com) Received: from pool0806.cvx21-bradley.dialup.earthlink.net ([209.179.195.41] helo=mindspring.com) by swan.mail.pas.earthlink.net with esmtp (Exim 3.33 #1) id 17X85D-00063G-00; Tue, 23 Jul 2002 15:24:44 -0700 Message-ID: <3D3DD77C.70E4F7D2@mindspring.com> Date: Tue, 23 Jul 2002 15:23:56 -0700 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Andrew Gallatin Cc: jf@trispen.com, freebsd-hackers@freebsd.org Subject: Re: remote crashdump References: <1027322178.258.11.camel@alias.trispen.com> <3D3BCF7B.D1F862D2@mindspring.com> <15677.32896.256029.156431@grasshopper.cs.duke.edu> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Andrew Gallatin wrote: > Terry Lambert writes: > > The closest anyone has come to this (to my knowledge) is > > the creation of a polled network driver and a tiny UDP > > stack to permit remote debugging over the network to a > > different machine on the same switch. This isn't very > > close to dumping. > > I think Darrell's netdump has been discussed before. > (http://www.cs.duke.edu/~anderson/freebsd/netdump/) > > It does exactly what the poster wants, but needs to be cleaned up and > brought up to date. The poster wanted tftp. Netdump requires a UDP server that obeys its own private retransmit protocol. See also the "readme", where it states: Known bugs For some types of crashes, the client will not receive interrupts for incoming packets (including the netdump acks). Netdump polls fxp and de interfaces, other interface types may not always work. While I have to admit that it's closer to an answer than I thought there was code for, it will still require almost as much work as I had said to get the rest of the way. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message