Patent ID: 9065481
Filing Date: 2015-06-23
Classification: G06F,H03M

Abstract:
1. A method for a cache coupled to a computer system, the method comprising: reading multiple error correcting code (ECC) words of an individual wordline from the cache, the wordline comprising two or more ECC words which are read; detecting, by a controller of the computer system, a first error in a first ECC word and a second error in a second ECC word in the wordline that is read; identifying, by the controller of the computer system, the wordline as a failing wordline based on detecting the first error in the first ECC word and the second error in the second ECC word; determining that the first error is a first correctable error in the first ECC word and that the second error is a second correctable error in the second ECC word for the wordline that is read; and determining, by the controller of the computer system, that the wordline fails based on finding the first correctable error in the first ECC word and the second correctable error in the second ECC word.