Hewlett-packard Development Company, L.p.

Eric Hamilton

Steven T Roth

Lawrence D K B Dwyer

Edward J Sharpe

Toshimitsu Kani

Manish Ahluwalia

Carl E Davidson

Steven M Valentine

Arlie Stephens

A system for and method of coordinating actions of components between userspace and kernel are described. The system comprises a processor; zero or more hardware components coupled with the processor; and a memory coupled with the processor and comprising a set of processor-executable instructions. The instructions comprise a component handling state machine responsive to at least one of a kernel component or a userspace component; and at least one component interface thread in communication with the component handling state machine and configured to interact with at least one of the zero of more hardware components responsive to a signal from the component handling state machine.

Coordinated actions of kernel and userspace components

A memory management system for managing memory of a processing device and a corresponding method thereof. The system comprises a memory manager and a garbage collector. The memory manager is configured to allocate memory after dividing discrete units of memory into smaller units. The garbage collector is configured to organize a memory availability collection of free units of memory in the memory manager. The collection is ordered based on at least one of the amount of each of the discrete units available and the allocation age of the discrete units.

Memory piece categorization

A method, and a corresponding mechanism, are used for creating a self-describing kernel module. The method includes the steps of expressing data describing a module in a modmeta file format and creating a C language source file. The C language source file is created by translating the expressed data into a series of C language data structures, wherein the series of C language data structures comprises the C language source file. The C language source file is then compiled and linked into the module itself, thus making the module contain its own descriptive data.

Self-describing kernel modules

Systems, methods, and device are provided for program stack handling. One method embodiment includes recognizing that a fault has occurred because a particular address range in a memory stack has been accessed. The method includes evaluating a current utilized size of regions in the memory stack. A particular address range between the current utilized size of regions in the memory stack is then relocated.

Program stack handling

Systems, methods, and devices are provided for scoring assertions in software testing. One method embodiment includes registering assertions which fail during testing of software code. The method includes analyzing failed assertions against a set of questions. The failed assertions are scored based on analyzing the failed assertions against a set of questions.

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Mountain View, CA, United States of America

Eric Hamilton