Ever wondered how Linux manages process states, especially uninterruptible sleep ("D" in ps/top/etc)? What if I told you that -- despite what most Linux users think -- you can often actually interrupt or kill them?
Thanks @lwnnet for the writeup on my work to improve printk() observability! This should be useful for anyone who needs to monitor and react to emerging issues, since it's not always feasible to have a stable metric or tracepoint. Just sent v7 upstream.
My work preventing tmpfs inode corruption (lkml.org/lkml/2020/7/13…) is now enabled in the Arch Linux kernel. If you're a heavy tmpfs user and rely on unique inode numbering for identity (eg. a build system), try it out! This likely solves some transient issues for you :-)
Today I reached 100,000 rep on Unix/Linux @StackExchange. I owe a lot to it: it helped me get my first paid job when I had no degree or other credentials, and contributing has sharpened my skills dramatically over the years. Thanks @codinghorror, @spolsky, and other SE folks!