Deadlock detection and prevention mechanism for a computer syste

Details Deadlock detection and prevention mechanism for a computer syste Deadlock detection and prevention mechanism for a computer syste

1974-04-19

1982-03-02

Atkinson, Charles E.

Boots, shoes, and leggings

364300, G06F 1516

Patent

active

043181821

ABSTRACT:
A method and apparatus for detecting a deadlock condition where two or more processes are waiting for events which cannot happen. Firmware is provided to examine the request of a first process of a group of processes for assignment of a first resource of a group of resources, and to determine whether said first resource is or is not currently assigned to a second process of said group of processes which said second process is already waiting directly or indirectly for a second resource of said group of resources which said second resource is currently assigned to the said first process.

REFERENCES:
patent: 3603935 (1971-09-01), Moore
patent: 3641505 (1972-02-01), Artz et al.
patent: 3648252 (1972-03-01), Thron et al.
patent: 3648253 (1972-03-01), Mullery et al.
patent: 3665404 (1972-05-01), Werner
patent: 3676860 (1972-07-01), Collier et al.
patent: 3676861 (1972-07-01), Ruth
patent: 3753234 (1973-08-01), Gilbert et al.
Ivan Flores, Operating System for Multiprogramming with a Variable Number of Tasks, Allyn and Bacon, Inc., Boston, 1973, pp. 204-216.

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