Frequently asked questions for Kernel

In this section we collect all frequently asked questions about Kernel. Do you have a question or one that really should be listed here? Share your feedback. Thanks for your contribution!

How to find the specific cause of a tainted kernel

The Linux kernel can mark itself as being 'tainted'. Learn what it means when the Linux kernel is tainted and in particular the underlying cause.

What is a tainted kernel

The Linux kernel is marked tainted when a specific event happened that could impact reliable troubleshooting of kernel issues. Learn about the relevant events.

What is the difference between /dev/random and /dev/urandom?

Learn the difference between Linux kernel random sources /dev/random and /dev/urandom, and when to use which one. Spoiler: probably /dev/urandom.