On Wed, 8 Mar 2006 03:06:26 +0100
Quentin Garnier <cube@cubidou.net> wrote:

> On Tue, Mar 07, 2006 at 07:16:44PM -0600, Peter Seebach wrote:
> > Hi!  This is NOT a NetBSD bug, but I'm really curious as to whether anyone's
> > seen it.
> > 
> > This program reliably hangs three different AMD64 machines, all of them
> > Athlons, and all with nForce4 chipsets.  I would love to know more cases
> > where it works or doesn't.  Hangs have been observed under 64-bit Linux
> > and 32-bit Windows.
> > 
> >         #include <string.h>
> >         unsigned char a[4*1024*1024];
> > 
> >         int
> >         main(void) {
> >                 while (1)
> >                         memset(a, 0, 4*1024*1024);
> >                 return 0;
> >         }
> > 
> > This program 100% reliably hangs my Athlon64 box.  It takes under 10 seconds
> > under Linux, several minutes on Windows.  And no, that doesn't make any
> > sense. I don't have any EM64T boxes handy for testing.
> 
> The memory is probably failing.
> 

On three different machines at the same time?