Ubuntu has a specific kernel for AWS, and partners with AWS to optimise the kernel for AWS environments. Part of that is fixing issues exactly like this. That

Ubuntu has a specific kernel for AWS, and partners with AWS to optimise the kernel for AWS environments. Part of that is fixing issues exactly like this. That issue was fixed as per the bug that you linked. Some more information from the original announcement: https://blog.ubuntu.com/2017/04/05/ubuntu-on-aws-gets-serious-performance-boost-with-aws-tuned-kernel https://blog.ubuntu.com/2017/04/05/ubuntu-on-aws-gets-seriou... (Disclaimer: I work at Canonical/Ubuntu, if that matters)