The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2008
Filed:
Sep. 30, 2004
R. Lee Gilbertson, Minneapolis, MN (US);
Mitchell A. Bauman, Circle Pines, MN (US);
Penny L. Svenkeson, Forest Lake, MN (US);
R. Lee Gilbertson, Minneapolis, MN (US);
Mitchell A. Bauman, Circle Pines, MN (US);
Penny L. Svenkeson, Forest Lake, MN (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A system and method is disclosed for performing error recovery in a data processing system that supports multiple processing partitions. One or more processors and I/O modules, as well as a portion of the address space of a main memory, is allocated to each partition. In this type of configuration, requests generated by units of multiple partitions are processed by the same queue and state logic of the main memory. When a failure occurs within one processing partition, one or more units are identified as being directly affected by the fault. All requests and responses from, and to, the affected units, as well as any logical residue of these requests and responses are removed from the shared memory queue and state logic in a manner that allows the other partition to continue issuing requests and responses to the memory in a normal manner that does not involve recovery operations.