Marshall Kirk McKusick - The Design and Implementation of the FreeBSD Operating System

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Second Edition

Marshall Kirk McKusick
George V. Neville-Neil
Robert N.M. Watson

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Library of Congress Cataloging-in-Publication Data

McKusick, Marshall Kirk.
The design and implementation of the FreeBSD operating system / Marshall
Kirk McKusick, George V. Neville-Neil, Robert N. M. Watson.
pages cm
Includes bibliographical references and index.
ISBN-13: 978-0-321-96897-5 (hardcover : alk. paper)
ISBN-10: 0-321-96897-2 (hardcover : alk. paper)
1. FreeBSD. 2. Free computer software. 3. Operating systems (Computers)
I. Neville-Neil, George V. II. Watson, Robert N. M. III. Title.
QA76.774.F74M35 2014
005.432dc23 2014020072

Copyright 2015 by Pearson Education, Inc.

All rights reserved. Printed in the United States of America. This publication is protected by copyright, and permission must be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. To obtain permission to use material from this work, please submit a written request to Pearson Education, Inc., Permissions Department, One Lake Street, Upper Saddle River, New Jersey 07458, or you may fax your request to (201) 236-3290.

ISBN-13: 978-0-321-96897-5
ISBN-10: 0-321-96897-2
Text printed on recycled and acid-free paper at Courier in Westford, Massachusetts.
Second Printing, November 2014

This book is dedicated to the BSD community.
Without the contributions of that communitys members,
there would be nothing about which to write.

This book follows the earlier authoritative and full-length descriptions of the design and implementation of the 4.3BSD and 4.4BSD versions of the UNIX system developed at the University of California at Berkeley. Since the final Berkeley release in 1994, several groups have continued development of BSD. This book details FreeBSD, the system with the largest set of developers and the most widely distributed releases. Although the FreeBSD distribution includes nearly 1000 utility programs in its base system and nearly 25,000 optional utilities in its ports collection, this book concentrates almost exclusively on the kernel.