System and method to detect errors and predict potential failures

• US 7,774,651 B2
• Filed: 01/07/2008
• Issued: 08/10/2010
• Est. Priority Date: 07/06/2004
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Mukherjee, Udayan, Kundu, Aniruddha
• Primary Examiner(s): DUNCAN, MARC M
• Application Number:
  US11/970,029
• Publication Number:
  US 20080104453A1
• Time in Patent Office: 946 Days
• Field of Search: None
• US Class Current: 714/26
• CPC Class Codes: G06F 11/0724 in a multiprocessor or a multi-core unit multiprocessors per se G06F15/80
• CPC Class Codes: G06F 11/076 by exceeding a count or rate limit, e.g. word- or bit count limit
• CPC Class Codes: G06F 11/0775 Content or structure details of the error report, e.g. specific table structure, specific error fields
• CPC Class Codes: G06F 11/079 Root cause analysis, i.e. error or fault diagnosis in a hardware test environment G06F11/22; in a software test environment G06F11/36
• CPC Class Codes: G06F 11/0793 Remedial or corrective actions recovery from an exception in an instruction pipeline G06F9/3861; by retry G06F11/1402; for recovering from a failure of a protocol instance or entity H04L69/40

Abstract

A system is disclosed that includes a component, a fault table configured to receive fault information associated with the component, and a diagnosis processor configured to read the fault information from the fault table and initiate corrective action as a function of the fault information. A method for handling faults in the system is also disclosed.

Claims

1. A system, comprising:

a fault table configured to receive fault information associated with a component and a time value associated with the fault information; and

a diagnosis processor configured to read the fault information from the fault table and initiate corrective action as a function of the fault information and the time value associated with the fault information before a failure of the component occurs, said diagnosis processor further to remove the fault information from the fault table when the time value associated with the fault information indicates that the fault information is older than a predetermined threshold.

2. The system of claim 1, wherein the fault table is contained in the diagnosis processor.

3. The system of claim 1, wherein the fault table is contained outside the diagnosis processor.

4. The system of claim 1, wherein the fault table includes an entry, said entry including a field indicative of the identity of the component.

5. The system of claim 1, wherein the time value is indicative of when a fault was detected in the component.

6. The system of claim 1, wherein the time value is indicative of the time that has elapsed since a fault was detected in the component.

7. The system of claim 1, wherein the fault table includes an entry, said entry including information indicative of the nature of a fault that has been detected in the component.

8. The system of claim 1, wherein the table includes an entry, said entry including a leaky bucket fault counter.

9. The system of claim 1, wherein the diagnosis processor is to predict a failure of the component.

10. The system of claim 1, wherein the component includes a fault register, and the fault information includes a value read from the fault register.

11. A method for handling faults in a system, comprising:

receiving fault information associated with a component;

storing the fault information in a fault information table;

storing a time value associated with the fault information in the fault information table;

taking corrective action as a function of the fault information and the time value associated with the fault information before a failure of the component occurs; and

removing the fault information from the fault information table when the time value associated with the fault information indicates the fault information is older than a predetermined threshold.

12. The method of claim 11, further comprising:

predicting the likelihood of failure of the component based on the fault information in the fault information table.

13. The method of claim 12 wherein predicting the likelihood of failure of the component is also based on a policy.

14. The method of claim 12 wherein predicting the likelihood of failure of the component is based on whether more than a predetermined number of faults in a given time window has occurred.

15. The method of claim 14, further comprising modifying the time window based on a frequency of faults in said component.

16. An article of manufacture comprising a computer-readable medium having stored thereon instructions adapted to be executed by a processor, the instructions which, when executed, define a series of steps to be used to control a method for handling faults in a system, said steps comprising:

receiving fault information associated with a component;

storing the fault information in a fault information table;

storing a time value associated with the fault information in the fault information table;

taking corrective action as a function of the fault information and the time value associated with the fault information before a failure of the component occurs; and

removing the fault information from the fault information table when the time value associated with the fault information indicates the fault information is older than a predetermined threshold.

17. The article of manufacture of claim 16, wherein said steps further comprise:

predicting the likelihood of failure of the component based on the fault information in the fault information table.