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Generated January 23, 2018

Method and system to identify a memory corruption source within a multiprocessor system

Patent Number: 6,845,470

Patent Information

Abstract
A method and system for identifying a source of a corrupt data in a memory in a multiprocessor computer system. When a computer program stores corrupt data causing a program failure or a system crash, the corrupt data and its address are identified. The multiprocessor computer system is shut down, and the corrupt data is cleared from the memory. Before fully re-booting the multiprocessor computer system, a processor is selected from the multiprocessor computer system to load and run monitor code designed to monitor the location where the corrupt data was stored. The program that previously stored the corrupt data is restarted, and the selected processor detects any re-storage of the corrupt data in the same memory address. All processors in the computer system are then immediately suspended. The registers of all processors suspected of storing corrupt data are inspected to determine the source of the corrupt data.
Patent Number: 6,845,470
Issue Date: 2005-01-18

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Executive Summary

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Citations

Patents cited by this patent

Patent Title
6,795,916 Method for updating microcode in a system wherein a keyboard BIOS expects an updated signal within a time period after microcode update commences
6,772,367 Software fault tolerance of concurrent programs using controlled re-execution
6,701,454 Method and system for recovering information during a program failure
6,675,295 Method and computer system for detecting and correcting a failure in a computer application program during startup
6,591,379 Method and system for injecting an exception to recover unsaved data
6,502,208 Method and system for check stop error handling
6,412,082 Method and apparatus for selecting computer programs based on an error detection mechanism
6,230,284 Initiating corrective action after the occurrence of a program error
6,009,258 Methods and devices for unwinding stack of frozen program and for restarting the program from unwound state

Patents that cite this patent

Patent Title
8,301,917 Method and apparatus for managing power from a sequestered partition of a processing system
8,141,045 Automatically identifying the source of copied software
8,140,908 System and method of client side analysis for identifying failing RAM after a user mode or kernel mode exception
7,996,585 Method and system for state tracking and recovery in multiprocessing computing systems
7,840,946 System and method for matching a plurality of ordered sequences with applications to call stack analysis to identify known software problems
7,765,429 Method and system to execute recovery in non-homogenous multi processor environments
7,752,497 Method and system to detect errors in computer systems by using state tracking
7,669,078 Method and apparatus for debugging a program on a limited resource processor
7,647,509 Method and apparatus for managing power in a processing system with multiple partitions
7,613,954 Test executive with stack corruption detection
7,574,627 Memory dump method, memory dump program and computer system
7,502,957 Method and system to execute recovery in non-homogeneous multi processor environments
7,457,985 Method to detect errors in computer systems by using state tracking
7,391,312 Method and system for an incidental feedback platform
7,363,544 Program debug method and apparatus
7,111,200 Apparatus and method for debugging a logical partition

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