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. 20, 2018
Filed:
Jul. 22, 2014
Oracle International Corporation, Redwood Shores, CA (US);
Darrin P. Johnson, San Jose, CA (US);
Vladimir Kotal, Prague, CZ;
Brian Ruthven, Berkshire, GB;
Christopher Beal, Berkshire, GB;
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
A method for performing a deferred system dump includes storing a preservation list referencing physical memory addresses allocated to pages by an initial operating system executing on a computer system. The method further includes identifying a subset of the pages that are at least partially allocated below a first physical memory address, relocating the subset to new physical memory addresses above the first physical memory address, and updating the preservation list with the new physical memory addresses. The method further includes transferring control of the computer system from the initial operating system to a subsequent operating system. The subsequent operating system accesses the preservation list to identify preserved pages. The method further includes assigning each of the preserved pages to an address segment in an address space of the subsequent operating system, storing a subset of the preserved pages, and freeing the preserved pages.