What causes Linux kernel panic?

A Linux kernel panic is a computer error from which the Linux operating system (OS) cannot quickly or easily recover. … Kernel panics are generally caused by an element beyond the Linux kernel’s control, including bad drivers, overtaxed memory and software bugs.

How do I find the kernel panic log in Linux?

Kernel log messages can be viewed in /var/log/dmesg files even after restart of the system. There will be so many files with dmesg. X, and those files are previous kernel logs.