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1、UnderstandingtheLINUXKERNELTHIRDEDITIONDanielP.BovetandMarcoCesatiBeijing•Cambridge•Farnham•Köln•Paris•Sebastopol•Taipei•Tokyowww.it-ebooks.infoUnderstandingtheLinuxKernel,ThirdEditionbyDanielP.BovetandMarcoCesatiCopyright©2006O’ReillyMedia,Inc.Allrightsreserved.P
2、rintedintheUnitedStatesofAmerica.PublishedbyO’ReillyMedia,Inc.,1005GravensteinHighwayNorth,Sebastopol,CA95472.O’Reillybooksmaybepurchasedforeducational,business,orsalespromotionaluse.Onlineeditionsarealsoavailableformosttitles(safari.oreilly.com).Formoreinformatio
3、n,contactourcorporate/insti-tutionalsalesdepartment:(800)998-9938orcorporate@oreilly.com.Editor:AndyOramProductionEditor:DarrenKellyProductionServices:AmyParkerCoverDesigner:EdieFreedmanInteriorDesigner:DavidFutatoPrintingHistory:November2000:FirstEdition.December
4、2002:SecondEdition.November2005:ThirdEdition.NutshellHandbook,theNutshellHandbooklogo,andtheO’ReillylogoareregisteredtrademarksofO’ReillyMedia,Inc.TheLinuxseriesdesignations,UnderstandingtheLinuxKernel,ThirdEdition,theimageofamanwithabubble,andrelatedtradedressare
5、trademarksofO’ReillyMedia,Inc.Manyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedastrademarks.Wherethosedesignationsappearinthisbook,andO’ReillyMedia,Inc.wasawareofatrademarkclaim,thedesignationshavebeenprintedincapsorinitialcaps
6、.Whileeveryprecautionhasbeentakeninthepreparationofthisbook,thepublisherandauthorsassumenoresponsibilityforerrorsoromissions,orfordamagesresultingfromtheuseoftheinformationcontainedherein.ISBN-10:0-596-00565-2ISBN-13:978-0-596-00565-8[M][9/07]www.it-ebooks.infoTab
7、leofContentsPreface.................................................................xi1.Introduction.......................................................1LinuxVersusOtherUnix-LikeKernels2HardwareDependency6LinuxVersions7BasicOperatingSystemConcepts8AnOverviewoft
8、heUnixFilesystem12AnOverviewofUnixKernels192.MemoryAddressing................................................35MemoryAddresses35SegmentationinHardware36