Brendan used to be Mr. DTrace User. (Not Mr. DTrace -- that was bmc, ahl, and mws.) But the world isn't using Solaris or FreeBSD, so I guess he moved on like most of the rest of us Solaris diaspora. Still, every time I see one of Brendan's blogs I know, deep down, he must miss DTrace; I sure do. This video doesn't help me feel at home with Linux, but it's a resource for when I need to trace something. Mostly though, when I have to debug something on Linux, I do it the pre-DTrace way, which is to say: the hard way.