INSTRUCTOR’SvMANUAL
TOvACCOMPANY
OPERATING
SYSTEM
CONCEPT
v
S
SIXTHvEDITION
ABRAHAMvSILBERSCHATZ
BellvLaboratories
PETERvBAERvGALVIN
CorporatevTechnologies
GREGvGAGNE
Westminsterv College
Copyrightvcv2001vA.vSilberschatz,vP.vGalvinvandvGregvGagne
,
, PREFACE
Thisv volumev isv anv instructor’sv manualv forv thev Sixthv Editionv ofv Operating-
SystemvConceptsv byvAbrahamvSilberschatz,vPetervBaervGalvin,vandvGregvGagne.vItvconsistsvofvans
wersvtovthevexercisesvinvthevparentvtext.v Invcasesvwherevthevanswervtovavquestionvinvolvesvavlong
vprogram,valgorithmvdevelopment,vorvanvessay,vnovanswervisvgiven,vbutvsimplyvthevkeywordsv“N
ovAnswer”varevadded.vAlthoughvwevhavevtriedvtovproducevanvinstructor’svmanualvthatvwillvaidval
lvofvthevusersvofvourvbookvasvmuchvasvpossible,vtherevcanvalwaysvbevimprovementsv(improvedva
nswers,vadditionalvquestions,v samplevtestvquestions,v programmingvprojects,valternativevordersv
ofvpresentationvofvthevmaterial,vadditionalvreferences,vandvsovon).v Wevinvitevyou,vbothvinstructor
svandvstudents,vtovhelpvusvinvimprovingvthisvmanual.v Ifvyouvhavevbettervsolutionsvtovthevexercis
esvorvothervitemsvwhichvwouldvbevofvusevwithvOperating-
SystemvConcepts,vwevinvitevyouvtovsendvthemvtovusvforv considerationv inv laterv editionsv ofv thisv m
anual.v Allv contributionsv will,v ofv course,v bev properly
creditedvtovtheirvcontributor.
Internetvelectronicvmailvshouldvbevaddressedvtovavi@bell-
labs.com.vPhysicalvmailvmayvbevsentvtovAvivSilberschatz, vInformationvSciencesvResearchvCenter,v
MHv2T-310,vBellvLaboratories,v600vMountainvAvenue,vMurrayvHill,vNJv07974,vUSA.
A.vS.
P.vB.vG
G.vG.
iii
,
TOvACCOMPANY
OPERATING
SYSTEM
CONCEPT
v
S
SIXTHvEDITION
ABRAHAMvSILBERSCHATZ
BellvLaboratories
PETERvBAERvGALVIN
CorporatevTechnologies
GREGvGAGNE
Westminsterv College
Copyrightvcv2001vA.vSilberschatz,vP.vGalvinvandvGregvGagne
,
, PREFACE
Thisv volumev isv anv instructor’sv manualv forv thev Sixthv Editionv ofv Operating-
SystemvConceptsv byvAbrahamvSilberschatz,vPetervBaervGalvin,vandvGregvGagne.vItvconsistsvofvans
wersvtovthevexercisesvinvthevparentvtext.v Invcasesvwherevthevanswervtovavquestionvinvolvesvavlong
vprogram,valgorithmvdevelopment,vorvanvessay,vnovanswervisvgiven,vbutvsimplyvthevkeywordsv“N
ovAnswer”varevadded.vAlthoughvwevhavevtriedvtovproducevanvinstructor’svmanualvthatvwillvaidval
lvofvthevusersvofvourvbookvasvmuchvasvpossible,vtherevcanvalwaysvbevimprovementsv(improvedva
nswers,vadditionalvquestions,v samplevtestvquestions,v programmingvprojects,valternativevordersv
ofvpresentationvofvthevmaterial,vadditionalvreferences,vandvsovon).v Wevinvitevyou,vbothvinstructor
svandvstudents,vtovhelpvusvinvimprovingvthisvmanual.v Ifvyouvhavevbettervsolutionsvtovthevexercis
esvorvothervitemsvwhichvwouldvbevofvusevwithvOperating-
SystemvConcepts,vwevinvitevyouvtovsendvthemvtovusvforv considerationv inv laterv editionsv ofv thisv m
anual.v Allv contributionsv will,v ofv course,v bev properly
creditedvtovtheirvcontributor.
Internetvelectronicvmailvshouldvbevaddressedvtovavi@bell-
labs.com.vPhysicalvmailvmayvbevsentvtovAvivSilberschatz, vInformationvSciencesvResearchvCenter,v
MHv2T-310,vBellvLaboratories,v600vMountainvAvenue,vMurrayvHill,vNJv07974,vUSA.
A.vS.
P.vB.vG
G.vG.
iii
,
