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.
Patent No.:
Date of Patent:
Apr. 26, 1983
Filed:
Jun. 30, 1980
David O Lewis, Rochester, MN (US);
John W Reed, Pine Island, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus is provided for assembling information concerning the occurrence of a channel error to form a channel error event consisting of four fields: a channel function field; a field identifying the I/O register in use at the occurrence of the channel error; a field identifying the particular I/O adapter using the channel when the error occurred; and a field specifying the type of channel error. The four-field channel error event is placed in an I/O event stack accessible to the CPU, and the CPU is notified of the addition to the I/O event stack. If the attempt to store the channel error event on the I/O event stack fails, the channel is stopped until the CPU signals the channel to restart and to again attempt to log the channel error event on the I/O event stack.