US 10,310,926 B2 · Data error detection in computing systems

Abstract

Embodiments of ensuring data integrity in computing devices and associated methods of operations are disclosed therein. In one embodiment, a method includes receiving, at a memory controller, a data request from the persistent storage to copy data from the memory. In response to the received data request, the requested data is retrieved from the memory. The retrieved data contains data bits and corresponding error correcting bits. The method can also include determining, at the memory controller, whether the retrieved data bits contain one or more data integrity errors based on the error correcting bits associated with the data bits. In response to determining that the retrieved data bits contain one or more data integrity errors, the memory controller can write data representing existence of the one or more data integrity errors into a memory location accessible by the processor for ensuring data integrity.

Claims20

Dependent claims

A computing device having a processor with a machine check register, a memory, a memory controller, and a persistent storage interconnected to one another, the memory containing instructions executable by the processor to cause the computing device to:

retrieve, with the memory controller, data from the memory, the retrieved data containing data bits to be persisted in the persistent storage and error correcting bits corresponding to the data bits;
determine, at the memory controller, whether the retrieved data bits contain one or more data integrity errors based on the error correcting bits corresponding to the data bits;
and
in response to determining that the retrieved data bits contain one or more data integrity errors, with the memory controller, write data representing existence of the one or more data integrity errors into the machine check register accessible by the processor when execution of an operating system by the processor on the computing device is suspended.

1 more element

A method for ensuring data integrity in a computing device having a main processor with a processor cache, a memory controller, a volatile memory, and a persistent storage operatively interconnected to one another, the method comprising:

retrieving, with the memory controller, data from the memory, the retrieved data containing data bits to be persisted in the persistent storage and error correcting bits corresponding to the data bits;
determining, at the memory controller, whether the retrieved data bits contain one or more data integrity errors based on the error correcting bits corresponding to the data bits;
and
in response to determining that the retrieved data bits contain one or more data integrity errors, with the memory controller, writing data representing existence of the one or more data integrity errors into the machine check register accessible by the processor when execution of an operating system by the processor on the computing device is suspended.

1 more element

Dependencies are inferred from the claim text.

Data error detection in computing systems

Life of this patent

Data error detection in computing systems

Life of this patent

Abstract

Claims20