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Debugging method based on diagnosis of CPU (central processing unit) non-maskable interrupt system problems

A debugging method and system problem technology, applied in the direction of instrumentation, electrical digital data processing, calculation, etc., can solve problems such as no way to know what kind of failure occurs in the computer system, the system cannot respond, and users have trouble solving problems, etc.

Inactive Publication Date: 2012-10-03
JIANGSU LEMOTE TECH CORP
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the case of NMI in the system, the system cannot make any response, and other conventional debugging methods cannot play a role
In this case, it will bring various inconveniences to the user. When NMI occurs, the user has no way of knowing what kind of fault occurs in the computer system, which causes trouble for the user to solve the fault.

Method used

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  • Debugging method based on diagnosis of CPU (central processing unit) non-maskable interrupt system problems
  • Debugging method based on diagnosis of CPU (central processing unit) non-maskable interrupt system problems

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Embodiment Construction

[0022] Below in conjunction with the accompanying drawings and specific embodiments, the present invention will be further clarified. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. Modifications of equivalent forms all fall within the scope defined by the appended claims of this application.

[0023] like figure 1 As shown: the debugging method based on the CPU non-maskable interrupt system problem diagnosis disclosed in this embodiment includes the following steps:

[0024] Enter the BIOS.

[0025] Determine whether the current state of the computer is a restart or a non-maskable interrupt; if the current state of the computer is a reboot, the BIOS executes the boot and loads the kernel to start the system; if the current state of the computer is a non-maskable interrupt, add a non-maskable interrupt processing routine in the BIOS.

[0026] Enter the non-maskable interrupt...

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Abstract

The invention discloses a debugging method based on diagnosis of CPU (central processing unit) non-maskable interrupt system problems, and the debugging method is a debugging method for diagnosis of system problems. The method comprises the following steps: step (1) of entering a basic input-output system; step (2) of judging whether a current state of a computer is restart or non-maskable interrupt; if the current of the computer is restart, carrying out starting by the basic input-output system and loading a kernel start system; if the current state of the computer is the non-maskable interrupt, adding a processing routine for the non-maskable interrupt in the basic input-output system; step (3) of entering processing routine for non-maskable interrupt; step (4) of outputting debugging process information; and step (5) of locating system fault causes. Due to execution of the method, fault clues in a system interrupt process are shown, and users can clear faults conveniently.

Description

technical field [0001] The invention relates to a debugging method based on CPU non-maskable interrupt system problem diagnosis, and belongs to the technical field of computer system fault diagnosis. Background technique [0002] At present, the non-maskable interrupt (Non-maskable-interrupt) is a kind of interrupt signal sent by the hardware circuit to the CPU when the computer encounters a serious error. Different from ordinary interrupts, even if the status register of the CPU is set to shield all software and hardware interrupts, once the NMI is generated, the CPU will respond immediately. It is because of this characteristic that NMI is usually used for severe fault handling and fault recovery. In the case of NMI in the system, the system cannot perform any response, and other conventional debugging methods cannot function. In this case, various inconveniences will be brought to the user's use. When an NMI occurs, the user has no way of knowing what kind of failure ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/00
Inventor 吴少刚张福新晏华张斌
Owner JIANGSU LEMOTE TECH CORP
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