From owner-freebsd-hackers Fri Nov 15 14:48:13 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id OAA23377 for hackers-outgoing; Fri, 15 Nov 1996 14:48:13 -0800 (PST) Received: from dyson.iquest.net ([198.70.144.127]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id OAA23370 for ; Fri, 15 Nov 1996 14:48:08 -0800 (PST) Received: (from root@localhost) by dyson.iquest.net (8.8.2/8.6.9) id RAA02001; Fri, 15 Nov 1996 17:46:12 -0500 (EST) From: "John S. Dyson" Message-Id: <199611152246.RAA02001@dyson.iquest.net> Subject: Re: Sockets question... To: karl@Mcs.Net (Karl Denninger) Date: Fri, 15 Nov 1996 17:46:12 -0500 (EST) Cc: terry@lambert.org, fenner@parc.xerox.com, scrappy@ki.net, jdp@polstra.com, hackers@freebsd.org In-Reply-To: <199611152146.PAA10779@Jupiter.Mcs.Net> from "Karl Denninger" at Nov 15, 96 03:46:43 pm Reply-To: dyson@freebsd.org X-Mailer: ELM [version 2.4 PL24 ME8] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > > No, Karl is doing this: > > 1) The *writer* is writing records of variable size with a prefix to > indicate how many byte(s) follow. > > 2) The writer does this ASSUMING that all of the records will get > delivered to the reader. > > 3) When the writer is done, he writes a "no more records follow" > flag record. > > 4) All of those writes return with no errors. > > 5) The READER gets about 2700 of the records (out of 8500!) and NEVER > SEES ANY MORE DATA. It hangs in read()! > > This does NOT happen with the 2.6.3 development kit and libraries. It > RELIABLY happens with -current. > I guess that Karl is the authority on what Karl is doing :-). This helps put some guessing to rest... Levity aside, Karl, what is the process state for the process that is hanging in read()? This might give the networking people a hint as to where the missing/broken spl or lock is occuring... John