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:
Jun. 16, 2026
Filed:
Jun. 14, 2024
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Atul Khare, Sammamish, WA (US);
Eli Cohen-Nehemia, Yokenam, IL;
Bhushan Mehendale, Bellevue, WA (US);
Karunakara Kotary, Redmond, WA (US);
Shruti Gupta, Delhi, IN;
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Systems and methods are provided for implementing improved root cause analysis ('RCA')-based node recovery. After instructing a node to enter a debug mode and based on a determination that an expected response timeout duration has elapsed, a controller instructs the node to enter a system management mode (“SMM”), and exposes a shared buffer to an SMM handler of the node. The shared buffer includes instructions for the SMM handler to set a trap flag in a saved state area of an operating system (“OS”) of the node and to use a resume execution instruction after setting the trap flag. The trap flag causes the OS to transfer control of problematic code to a trap handler, which performs operations or calls a hypervisor for a virtual machine extension (“VMX”) root mode depending on whether the problematic code execution occurs in a non-maskable interrupt (“NMI”) handler.