The Old New Thing

In the red corner, EXCEPTION_INT_DIVIDE_BY_ZERO and STATUS_INTEGER_DIVIDE_BY_ZERO; and in the blue corner, EXCEPTION_INT_OVERFLOW and STATUS_INTEGER_OVERFLOW

October 2, 2014 Oct 2, 2014 10/2/14

Raymond Chen

The exception code (and its doppelgänger ) is raised, naturally enough, when the denominator of an integer division is zero. The x86 and x64 processors also raise this exception when you divide by , or more generally, when the result of a division does not fit in the destination. The division instructions for those processors take a ...

You can name your car, and you can name your kernel objects, but there is a qualitative difference between the two

October 1, 2014 Oct 1, 2014 10/1/14

Raymond Chen

A customer reported that the appeared to be unreliable. We have two threads, one that waits on an event and the other that signals the event. But we found that sometimes, signaling the event does not wake up the waiting thread. We have to signal it twice. What are the conditions under which will ignore a signal? // cleanup and error ...