System exception capturing method, main system, shadow system and intelligent equipment

Abstract

The invention provides a system exception capturing method, a main system, a shadow system and intelligent equipment. The main system side method includes the steps that the shadow system used for performing exception detection on the main system is started by the main system on a second hardware resource of a hardware environment; the second hardware resource is different from a first hardware resource, operating in the hardware environment, of the main system; own operation state information of the main system is dynamically stored in a shared memory, and when monitoring main system exceptions, the shadow system obtains the operation state information of the main system from the shared memory; own physical memory addresses of the main system are stored in the shared memory, and when monitoring main system exceptions, the shadow system can get access to a physical memory of the main system through the physical memory addresses in the shared memory and obtain the information of the physical memory used by the main system. According to the scheme, on the breakdown condition of the operation system (namely the main system), exception information can be captured.

Description

technical field [0001] The invention relates to the technical field of computer operating systems, in particular to a system abnormality capturing method, a main system, a shadow system and an intelligent device. Background technique [0002] With the rapid development of computer software and hardware technology, the hardware environment and business programs of the operating system are becoming more and more complex. In practical applications, the system often crashes. The possible manifestations are: the keyboard and mouse do not respond, and cannot be pinged. , The display cannot be turned on or abnormal information cannot be displayed on the display, and the system log cannot record effective fault information. At this time, the environment may completely lose response and cannot be operated. The analysis and positioning of such problems has always been a major problem in the industry. [0003] There are some methods for locating crashes in the existing operating syste...

AI Technical Summary

Problems solved by technology

[0003] There are some methods for locating crashes in the existing operating system, such as the kdump technology of the Linux operating system can capture the operating system kernel software exception, the nmi_watchdog technology of the Linux operating system can capture the kernel interrupt deadlock exception, the Linux operating system’s The watchdog technology can capture kernel scheduling exceptions, but it cannot capture valid information for crash exceptions caused by the following reasons:

[0004] 1. The CPU hardware failure causes the operating system to hang up

In this case, the CPU hardware hangs directly, causing the operating system running on the CPU to hang directly, so that no valid information can be recorded

[0005] 2. The memory hardware failure causes the operating system to hang up

In this case, the memory hardware failure causes the operating system to hang directly, so that no valid information can be recorded

[0006] 3. PCI (Peripheral Component Interconnect, Peripheral Component Interconnect Standard) device hardware or firmware failure causes the PCI bus to hang, and eventually the operating system hangs

In this case, valid information cannot be recorded

[0007] 4. Hard disk hardware or firmware failure causes the operating system to hang up

In this case, the system I / O (input / output) hangs due to a hard disk failure, and the log cannot be recorded

[0008] 5. The system load is too heavy and the operating system hangs, such as memory exhaustion

In this case, the operating system cannot perform operations related to recording exception information

[0009] 6. High-priority tasks continue to occupy the CPU, causing other low-priority tasks to be unscheduled, eventually causing the operating system to hang

In this case, the system can only schedule high-priority tasks to execute, but the low-level processes related to recording abnormal information cannot be scheduled, so that effective information cannot be recorded

[0010] 7. A deadlock occurs during soft interrupt processing, which causes other tasks to fail to be scheduled, and eventually causes the operating system to hang

However, this solution is not applicable due to the additional configuration of monitoring equipment

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