These tips and techniques by James Turnbull will help you to avoid potential source control pitfalls and make your development workflow bit smoother.

Tip # 6: I am bisect and so can you

git bisect is one of the most powerful, seemingly magical, code-based debugging tools available to you. It can be used when you discover a bug you can’t trace to a specific piece of code. A git bisect runs a binary search between two commits: a good commit where the bug wasn’t present and a bad commit where the bug appears.

$ git bisect start
$ git bisect bad                 # Current version is bad
$ git bisect good v2.6.13-rc2    # v2.6.13-rc2 is known to be good