Title :
On-line detection and compensation of transient errors in processor pipeline-structures
Author :
Galke, C. ; Pflanz, M. ; Vierhaus, H.T.
Author_Institution :
Comput. Sci. Dept., Brandenburg Univ. of Technol., Cottbus, Germany
Abstract :
Based on strategies for on-line error detection in data and control path structures in simple microprocessors, this approach proposes techniques for the control- and component-error detection in high-performance processors. Detected errors are classified on-line with respect to their impact on the control and data flow. A compensation of detected errors is performed by micro rollback with different rollback distances according to pre-defined priority classes of error handling.
Keywords :
embedded systems; error compensation; error detection; fault diagnosis; microprocessor chips; pipeline processing; production testing; component-error detection; control signal errors; data and control path structures; error handling; floating-point components; high-performance processors; integer components; micro rollback; multiple errors; on-line compensation; on-line detection; processor pipeline-structures; production test; severity control; single errors; superscalar data path; transient errors; Clocks; Computer errors; Computer science; Conferences; Delay; Error correction; Fault detection; Pipelines; Registers; Testing;
Conference_Titel :
On-Line Testing Workshop, 2002. Proceedings of the Eighth IEEE International
Print_ISBN :
0-7695-1641-6
DOI :
10.1109/OLT.2002.1030204
