US Patent 7711914 Debugging using virtual watchpoints

A method is provided for use in a computer system for: (A) receiving notification of a virtual memory trap; (B) determining whether the virtual memory trap was triggered by an access to a region of memory identified as protected against access; (C) if it is determined that the virtual memory trap was triggered by an access to a region of memory identified as protected against access, determining whether the virtual memory trap was triggered by computer program code identified as suspect; and (D) if it is determined that the virtual memory trap was triggered by computer code identified as suspect, signaling a fault to a debugger executing on the computer system.