2020年7月30日 — How to capture crash log using kdump · 1) Precondition (Kernel). There are two kernels, · 2) Precondition (kexec) Install the kexec-tools in ...
show kdump log [X] ... This command is used to display the last X lines of the kernel log ring buffer. If X is not provided, the default value 75 is being used.
A 'kernel crash dump' refers to a portion of the contents of volatile memory (RAM) that is copied to disk whenever the execution of the kernel is disrupted. The ...
Kdump uses kexec to quickly boot to a dump-capture kernel whenever a dump of the system kernel's memory needs to be taken (for example, when the system panics).