Re: software reset

Eric W. Biederman
2003-04-30T16:53:16Z

Gabriel Paubert <paubert@iram.es> writes:

> On Wed, Apr 30, 2003 at 05:04:59AM -0600, Eric W. Biederman wrote:
> >
> > And as an interesting data point all a triple fault does on a modern
> > system is to put the cpu in a weird stopped state. Some hardware
> > usually the southbridge then detects this and if properly configured
> > will trigger the reset line.
> >
> > I believe this may actually go back into history as far as the 486 but
> > I have not done the researched to see how far back this behavior goes.
>
> Try 286. It was the fastest (actually only) way to make a 286 switch back
> from protected to real mode.

A triple fault would put a 286 into coma mode? And the hardware had to
reset the chip?

Just trying to be clear on what you are saying.

Eric