https://blog.gongquiz.com/2022/09/19/linux-%ec%8b%9c%ec%8a%a4%ed%85%9c%ec%97%90%ec%84%9c-%ec%82%ac%ec%9a%a9%ec%9e%90%ea%b0%80-%eb%82%b4%eb%a6%b0-%eb%aa%85%eb%a0%b9%ec%96%b4%eb%a5%bc-kernel%ec%97%90-%ec%a0%84%eb%8b%ac%ed%95%b4%ec%a3%bc-3/