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SubjectRe: Bricked x86 CPU with software?
Pavel,

As I mentioned before, I repeatedly and fully power-cycled the motherboard and reset BIOS
and etc. It made no difference. I can see that the processor was not drawing any power. The
software code behaved in a similar fashion on other processors, until I fixed it so that it would
not kill any more processors.

In case you are curious there was no overheating, no 100% utilization, no tampering with
hardware (GPIO pins or anything of that sort), no overclocking and etc. No hardware issues
or changes at all.

Tim

> Hi!
>
> > In all my years of extensive experience writing drivers and kernels, I never came across a situation
> > where you could brick an x86 CPU. Not until recently, when I was working on debugging a piece of
> > code and I bricked an Intel CPU. I am not talking about an experimental motherboard or anything
> > exotic or an electrical issue where the CPU got fried, but before the software code execution the CPU
> > was fine and then it´s dead. There were signs that something was not right, that the code was causing
> > unusual behavior, which is what I was debugging.
> >
> > Has anyone else ever experienced a bricked CPU after executing software code? I just wanted to get
> > input from the community to see if anyone had had any experience like that, since it seems rather
> > unusual to me.
>
> Never seen that before. Can you try to brick another one? :-).
>
> You may want to remove AC power and battery, wait for half an hour,
> then attempt to boot it...
>
> Pavel
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
>


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