International Business Machines Corporation

Michael J Mueller

Hartmut Penner

Christine Axnix

William John Starke

Warren Edward Maule

Luis Alfonso Lastras-Montano

Kenneth Parker Rodbell

Naresh Nayar

James A O'Connor

Eric Eugene Retter

Kenneth Lee Wright

Philip Joseph Oldiges

Daniel Lawrence Stasiak

Michael Raymond Trombley

Richard Nicholas

Daniel James Henderson

Hassan Naser

Kanwal Bahri

An integrated circuit package with a buffer providing radiation protection to memory elements and components is described. The integrated circuit packages and the incorporated buffers provide a protective distance between potential sources of internal radiation particles within the integrated circuit package and any memory elements/components which may be sensitive to radiation such as alpha particles. This protective distance allows for the integrated circuit packages to be completed or assembled without needing added more expensive or redundant memory components.

Reducing error rates with alpha particle protection

Methods, systems, and computer program products are provided for dynamic selective memory mirroring in solid state devices. An amount of memory is reserved. Sections of the memory to select for mirroring in the reserved memory are dynamically determined. The selected sections of the memory contain critical areas. The selected sections of the memory are mirrored in the reserved memory.

Methods, systems, and computer program products for dynamic selective memory mirroring

A method, a computer program product, and a system for generating and applying patches to a computer program concurrently with its execution. It provides full support for function pointers, transparent to the programmer and nearly transparent to the concurrent loader. A reference to a function pointer is translated into a sequence of processor instructions called function descriptor instead of translating it into an address. The purpose of the function descriptor is to jump to the memory location of the sequence of instructions generated by the compiler for the procedure referenced by the function pointer. The function descriptor is masked as a static data variable and therefore preserved during the application of a concurrent patch. The address for the jump to the procedure is updated by the regular relocation process during the application of a concurrent patch.

Method and system for generating and applying patches to a computer program concurrently with its execution

The present invention relates to a method, a computer program product and a system of adding new static data variables and initialisation routines for these variables as part of a method of replacing a current version of a computer program with a replacement version of the program concurrently with the execution of the program on a computer system. This replacement version consists of new machine code completely replacing the existing version, new static data variables and initialisation routines for these variables. The content of the existing static variables will be preserved during the application of the concurrent patch. The concurrent patch can be revoked and the new static data variables can be removed such that the computer program that was executed before the application of the concurrent patch will be executed again.

Method and system for applying patches to a computer program concurrently with its execution

Growing community of inventors

Leonberg, Germany

Michael J Mueller