While doing some performance work on FreeBSD stable/12, I needed to use lockstat and noticed that it was broken. 1 2 3 root@Test:~ # lockstat -H sleep 1 lockstat: failed to compile program: in action list: operator -> cannot be applied to a forward declaration: no struct mtx definition is available And another, while working on an issue with a netgraph module: 1 2 dtrace: failed to compile script .

A 20-year romance with technology has led me to have to solve some fun and spicy problems throughout my career. Quite a few of these had no [search engine(s) of choice] results. Where possible, this is an attempt at remedying that for myself and others. The name of the blog is a reference, to an obscure, obsolete word and a piece of Greek mythology about the loss of sight. Having dealt with vision issues since birth, the mythos speaks to me.