Re: Faking Uptime

FROM : David Dunham
DATE : Wed Mar 19 19:46:19 2008

On 19 Mar 2008, at 11:16, Gary L. Wade wrote:

> Have you checked your code to make sure you're not converting an 
> uptime (TickCount, Microseconds, etc.) calculation into 
> milliseconds while using a signed 32-bit value?  You'll overrun a 
> signed 32-bit value when using milliseconds at around the 24-days, 
> 20-hour mark.  That would be the easiest thing to check before 
> trying to put your Mac into a time warp.



Well yes, I'm sure the bug is something like that. But I didn't spot 
anything obvious the last time I had a 25-day machine (which 
unfortunately got rebooted before I solved the bug). I'd like to be 
able to debug and see where the value gets flipped negative.

David Dunham
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