Detecting and reporting livelocks in a computer

摘要

Tasks executing on a computer can livelock. To detect a livelocked task, the amount of computing resources consumed by the task is sampled to determine whether the task is consuming an inordinate amount of resources. In addition, the task is examined to determine whether it is making tangible progress. This examination can include inspecting registers of a processor executing the task. If the task is livelocked, state data describing the livelock event is collected. The state data can include a memory dump describing the state of the livelocked task and data describing other tasks executing on the computer. A livelock report including the collected state data is generated and transmitted to a server.