When executing untested programs from the shell, a common error message printed by
the shell is "Bus error - core dumped." The program apparently did something
illegal; how does the shell know that it should print an error message?
Answers
Answer:
TRANSCRIPT
1.MAURICE J.BACH PRENTICE-HALL SOFTWARE SERIES
2. .THE DESIGN Of THEOPERATING SYSTEM MAURICEJ. BACH In this timely new book, Maurice J. Bach traces the popularity of theUNIX System throughout the computer industry. The author describes the internal algorithms and structures that form the basis of the operating system (the kernel) and their relationship to the programmer interface.Among its key features, the book: describes the outline of the kernel architectureintroduces the system buffer cache mechanismindudes data structures and algorithms used internally by the file systemcoversdefines the context of a process and investigates the internal kernelthe system calls that provide the user interface to the file systemprimitives that manipulate the process context presents the system calls that control the p rocess contextdescribes process schedulingdiscusses memory management, including swapping and paging systemsoutlines general driver interfaces, with specific discussion of disk drivers and terminal driverspresents an overview of streamsintroduces inter-process communication and networking, induding System V messages, shared memory, and semaphoresexplains tightly coupled multiprocessor UNIX systemsinvestigates distributed UNIX systems 3. THE DESIGN OF THE UNIX OPERATING SYSTEM Maurice J. BachPRENTICE-HALL, INC., Englewood Cliffs, New Jersey 07632 4. Copyright 1986 by Bell Telephone laboratories, Incorporated. Published by Prentice-Hall, Inc. A division of Simon & Schuster Englewood Cliffs, New Jersey 07632Prentice-Hall Software Series Brian W. Kernighan, Advisor Cover Design Consultant: Sarah Bach UNIX is a registered trademark of AT&T. DEC, PDP. and VAX are trademarks of Digital Equipment Corp. Series 32000 is a trademark of National Semiconductor Corp. Ada is a registered trademark of the U.S. Government (Ada Joint Program Office). UNIVAC is a trademark of Sperry Corp. This document was set on an AUTOLOGIC, Inc. APS-5 phototypesetter driven by the TROFF formatter operating under the UNIX system on an AT&T 3820 computer. The Publisher offers discounts on this book when ordered in bulk quantities. For more information write: Special Sales/College Marketing Prentice-Hall, Inc. College Technica I and Reference Division Englewood Cliffs, New Jersey 07632 The author and publisher of this book have used their best efforts in preparing this book. These efforts include the development, research, and testing of thetheories and programs to determine their effectiveness. The author and publisher make no warranty of any kind, expressed or implied, with regard to these programs or the documentation contained in this book. The author and publisher shall not be liable in any event for incidental or consequential damages in connection with, or arising out of, the furnishing, performance, or use of these programs. All rights reserved. No part of this book may bereproduced, in any form or by any means, without permission in writing from the publisher.Prentice-Hall International (UK) limited, London Prentice-Hall of Au