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Victim selection for deadlock detection
   
Document Number
US Patent 7185339
Issued Date
February 27, 2007
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Abstract
A mechanism and system are described for either releasing held resources in the case of a deadlock or to postpone requests for resources when a potential deadlock is detected. One technique involves a three pass algorithm for selecting a candidate, where the candidate is either a possessory entity or resource is used. The three passes are as follows: (1) determining the subset of candidates, which have the CAN-BE-VICTIM flag set on; (2) If pass one results in a subset with more than one candidates in it, process that subset to determine a second subset of candidates based on resource priority associated with a resource type; (3) If the second pass results in a subset with more than one candidate in it, process that subset to select the candidate that has been running or held the shortest length of time.
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Number of Claims:
32
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Owner
Published
February 27, 2007
Application Number
09/922,424
Filed
August 3, 2001
US Classification
718/104   707/E17.007
Int'l Classification
G06F   9/46   (20060101)  
Examiner
Assistant Examiner
USPTO Field of Search
718/104  
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