From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=0.6 required=5.0 tests=BAYES_05,INVALID_DATE autolearn=no autolearn_force=no version=3.4.4 Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!sdd.hp.com!mips!pacbell.com!tandem!netcomsv!jls From: jls@netcom.COM (Jim Showalter) Newsgroups: comp.lang.ada Subject: Re: Patriot problem, more info available? Message-ID: <1991Jun7.080445.12661@netcom.COM> Date: 7 Jun 91 08:04:45 GMT References: <9106070033.AA16103@ajpo.sei.cmu.edu> Organization: Netcom - Online Communication Services UNIX System {408 241-9760 guest} List-Id: >I am particularly interested in the connection >between four days of operation and a software failure. >Based on no more than the newspaper article I wonder >if a dynamic memory got fragmented and slow with time. That's certainly how it reads. I've been told by people involved with the project that the system is programmed in a mixture of assembly, FORTRAN, and JOVIAL--but from the way it failed it sounds more like LISP! >there may be a >lesson-learned here for real-time Ada software. Indeed there is--avoid access types as much as possible. -- **************** JIM SHOWALTER, jls@netcom.com, (408) 243-0630 **************** *Proven solutions to software problems. Consulting and training on all aspects* *of software development. Management/process/methodology. Architecture/design/* *reuse. Quality/productivity. Risk reduction. EFFECTIVE OO usage. Ada/C++. *