The Blue Screen
Regardless of the reason for a system crash, the function that actually performs the crash is KeBugCheckEx (documented in the Windows DDK). This function takes a stop code (sometimes called a bug check code) and four parameters that are interpreted on a per–stop code basis. After
KeBugCheckEx masks out all interrupts on all processors of the system, it switches the display into a low-resolution VGA graphics mode (one implemented by all Windows-supported video cards), paints a blue background, and then displays the stop code, followed by some text suggesting what the user can do. Finally, KeBugCheckEx calls any registered device driver bug check callbacks (registered by calling the KeRegisterBugCheckCallback function), allowing drivers ...
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