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.

Date of Patent:
Jan. 17, 2023

Filed:

Mar. 04, 2020
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Mahesh Jagannath Salgaonkar, Bangalore, IN;

Ananth Narayan Mavinakayanahalli, Karnataka, IN;

Kamalesh Babulal, Bangalore, IN;

Aravinda Prasad, Bangalore, IN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/00 (2006.01); G06F 9/4401 (2018.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 9/4408 (2013.01); G06F 12/023 (2013.01); G06F 2212/251 (2013.01);
Abstract

Methods that boot a secondary operating system (O/S) kernel with reclaimed primary kernel memory are disclosed herein. One method includes booting, via a processor performing a boot algorithm, a secondary kernel for an O/S in response to a primary kernel for the O/S going offline, in which the secondary kernel is configured to be loaded to a reserved memory area. The method further includes reclaiming memory space from the primary kernel for use in booting the secondary kernel in response to a determination that the reserved memory area includes insufficient memory space for completing the boot algorithm. Also disclosed herein are apparatus, systems, and computer program products that can include, perform, and/or implement the methods for providing a secondary kernel that includes a reserved area in memory.


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