Method and system for processing abnormal task in computer application system adopting embedded operating system

Abstract

The invention provides a method for processing an abnormal task in a computer application system adopting an embedded operating system; and an application system based on main and standby redundancy configuration of a hardware platform is adopted. The method comprises steps executed by a process of initializing the computer application system, a process of updating a task state table, a process of capturing the abnormal task, a process of detecting a closed loop, a process of processing the abnormal task and a process of checking system restart. The invention also provides a system for processing the abnormal task in the computer application system adopting the embedded operating system; and the system comprises a detecting module, a capturing module, a record inquiring module, a task state table, an abnormal information memory region and a processing module. By the method and the system, the stable working capability of the computer application system is guaranteed, the abnormal taskof a closed loop or automatic restart can be detected and recorded, the error correcting capability of the computer application system is provided in large scale, and the controllability of a development process of the computer application system can be improved.

Description

technical field [0001] The invention belongs to the technical field of task management of computer operating systems, and mainly relates to a method and system for realizing abnormal task processing of an embedded operating system. Background technique [0002] In the process of developing embedded software, task tracking and monitoring have always been the focus and difficulty of embedded operating system task management, and it is also a key factor affecting an embedded software development cycle. [0003] During the entire software development process, sometimes when a task is processing a message, due to various reasons, such as array subscript out of bounds, access to null pointer, etc., illegal instructions will be executed, causing the operating system to fail to run normally. For such tasks that go wrong, we call them abnormal tasks. The most common manifestation of abnormal tasks is an infinite loop, that is, an error occurs when a task processes a message, and the...

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Problems solved by technology

[0012] For the two methods of infinite loop detection and abnormal task function under the restart of the recording system, the simple superimposed use cannot satisfy the processing of abnormal tasks under the embedded operating system, because in many important software application systems, such as In communication systems, power applications and testing, and software systems involving safety and control, in order to avoid system incapacity due to program errors, the exception handling method must not only be able to ensure the detection of abnormal tasks in the event of an infinite loop or system restart , positioning, and when a serious abnormal task is detected, it must be able to actively trigger the system to restart and output an alarm message. At the same time, it must also ensure that the original services provided by the system must be able to continue to operate without interruption

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