Great work! Segfaults are horrible, but bugs like these are even more so. Crawling, sneaking, living in your walls. Stealing precious CPU cycles and memory fro

Great work! Segfaults are horrible, but bugs like these are even more so. Crawling, sneaking, living in your walls. Stealing precious CPU cycles and memory from millions of machines at once--petabytes and petaflops when you add it all up. Worst yet, they don't make a peep until you shine the holy light of benchmarks, code reviews, automated testing, or the (un)lucky corner case on them. At least segfaults let you know something's definitely wrong. These bugs? Now that's insidious.