Windows drivers
Driver Verifier monitors Windows kernel-mode drivers and graphics drivers to detect illegal function calls or actions that might corrupt the system. Driver Verifier can subject the Windows drivers to a variety of stresses and tests to find improper behavior.
You can run Driver Verifier on multiple drivers simultaneously, or on one driver at a time. You can configure which tests to run, which allows you to put a driver through heavy stress loads or through more streamlined testing.