Re: Signal 11

Dr. Kelsey Hudson
2000-12-08T20:08:05Z

On Thu, 7 Dec 2000, Peter Samuelson wrote:

>
> [Dick Johnson]
> > Do:
> >
> > char main[]={0xff,0xff,0xff,0xff};
>
> Oh come on, at least pick an *interesting* invalid opcode:
>
> char main[]={0xf0,0x0f,0xc0,0xc8}; /* try also on NT (: */

What's funny, is that this actually executes on SPARC hardware, but
immediately segfaults. On Intel hardware though, you get a message similar
to:

zsh: illegal hardware instruction (core dumped) a.out

I wrote relatively the same program in college. It exploits the F0 0F bug
found in early Pentium hardware.

Kelsey Hudson khudson@ctica.com
Software Engineer
Compendium Technologies, Inc (619) 725-0771
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