Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael Nelson0
Daniel J. Scales0
Ganesh Venkitachalam0
Date of Patent
June 21, 2011
Patent Application Number
12266171
Date Filed
November 6, 2008
Patent Primary Examiner
Patent abstract
A backup VM is allowed to enter live execution mode at instruction boundaries but not in the middle of emulation of a single instruction. This is accomplished by having the last log entry of multiple entries generated during emulation of an instruction to have an indication of a “go-live” point and by having the backup VM not replay log entries provided by the primary VM beyond the log entry that indicates the “go-live” point.
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