Deadlock detecting system

Details Deadlock detecting system Deadlock detecting system

1994-06-13

1995-08-08

Heckler, Thomas M.

Boots, shoes, and leggings

364DIG1, 3642815, G06F 1314

Patent

active

054407435

ABSTRACT:
A deadlock detection system each comprise a lock control table having entries corresponding to a resource when a plurality of resource requesters share a plurality of resources, a resource requester identifier list connected to a table of the lock control table, and a lock controller for managing an exclusive control by using the lock control table and the resource requester identifier list and for detecting a deadlock by examining a sequence inversion among resource requester identifiers on a list among competing resource requesters. An element of the resource requester identifier list can distinguish a shared lock from an exclusive lock by transferring a lock list obtained through a breakdown according to the content of a shared lock, and by independently examining the sequence inversion of resource requester identifier of the list among competing resource requesters.

REFERENCES:
patent: 4189771 (1980-02-01), Roever
patent: 4318182 (1982-03-01), Bachman et al.
patent: 4480304 (1984-10-01), Carr et al.
patent: 4791554 (1988-12-01), Hirota et al.
patent: 5016167 (1991-05-01), Nguyen et al.
patent: 5095421 (1992-03-01), Freund

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