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:
Jun. 25, 2019

Filed:

Apr. 25, 2017
Applicant:

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

Inventors:

Michael A. Blake, Wappingers Falls, NY (US);

Pak-kin Mak, Poughkeepsie, NY (US);

Robert J. Sonnelitter, III, Wappingers Falls, NY (US);

Timothy W. Steele, Poughkeepsie, NY (US);

Gary E. Strait, Poughkeepsie, NY (US);

Poornima P. Sulibele, Bangalore, IN;

Guy G. Tracy, Austin, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/14 (2006.01); G06F 12/0891 (2016.01); G06F 13/40 (2006.01);
U.S. Cl.
CPC ...
G06F 12/1466 (2013.01); G06F 12/0891 (2013.01); G06F 13/4036 (2013.01); G06F 2212/1052 (2013.01);
Abstract

A computer implemented method for avoiding false activation of hang avoidance mechanisms of a system is provided. The computer implemented method includes receiving, by a nest of the system, rejects from a processor core of the system. The rejects are issued based on a cache line being locked by the processor core. The computer implemented method includes accumulating the rejects by the nest. The computer implemented method includes determining, by the nest, when an amount of the rejects accumulated by the nest has met or exceeded a programmable threshold. The computer implemented method also includes triggering, by the nest, a global reset to counters of the hang avoidance mechanisms of a system in response to the amount meeting or exceeding the programmable threshold.


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