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:
Dec. 14, 2004
Filed:
Sep. 11, 2001
Roman A. Bobak, Wappingers Falls, NY (US);
Charles E. Mari, Wappingers Falls, NY (US);
Harris Morgenstern, Wappingers Falls, NY (US);
Jim H. Mulder, Wappingers Falls, NY (US);
Robert R. Rogers, Beacon, NY (US);
Danny R. Sutherland, Poughkeepsie, NY (US);
Peter B. Yocom, LaGrangeville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a computing system having swappable and non-swappable address spaces, wherein the computing system includes an operating system that includes a Real Storage Manager (RSM), a Systems Resource Manager (SRM) and a Region Control Task (RCT), a method for recovering swappable fixed non-preferred memory is provided which includes receiving a request from the operating system to configure an area of real memory to create an intercepted swappable address space, wherein the intercepted swappable address space includes a flagged fixed frame element identified for configuration, examining the intercepted swappable address space so as to determine if the intercepted swappable address space will remain swappable, requesting the SRM to coordinate the swapping process, quiescing the intercepted address space, generating a first return code responsive to the intercepted swappable address space remaining swappable, communicating the first return code to the RCT so as to cause the RCT to respond to the first return code, instructing the RSM to proceed based on the first return code, examining the intercepted swappable address space so as to identify the flagged frame elements, exchanging the flagged frame elements with unflagged frame elements, updating dynamic address translation tables, and returning a performance code to the RCT so as to indicate recovery success or recovery failure. A method for recovering swappable fixed non-preferred memory where the originally swappable address space has been converted into non-swappable address space is also provided.