[$] A filesystem corruption bug breaks loose

Kernel bugs can have all kinds of unfortunate consequences, frominconvenient crashes to nasty security vulnerabilities. Some of the mostfeared bugs, though, are those that corrupt data in filesystems. Thelosses imposed on users can be severe, and the resulting problems may notbe noticed for a long time, making recovery difficult. Filesystemdevelopers, knowing that they will have to face their users in the realworld, go to considerable effort to prevent this kind of bug from findingits way into a released kernel. A recent failure in that regard raises anumber of interesting questions about how kernel development is done.