[$] New kernel tools: wprobes, KStackWatch, and KFuzzTest

The kernel runs in a special environment that makes it difficult to usemany of the development tools that are available to user-space developers.Kernel developers often respond by simply doing without, but the truth isthat they need good tools as much as anybody else. Three new tools for thetracking down of bugs have recently landed on the linux-kernel mailinglist; here is an overview.