Re: 5.0beta won't boot on a Dell Dimension 8400

["Steven M. Bellovin" <smb%cs.columbia.edu@localhost>]

On Sun, 30 Nov 2008 09:50:04 +0000
Andrew Doran <ad%netbsd.org@localhost> wrote:

> On Sat, Nov 29, 2008 at 03:59:06PM -0500, Steven M. Bellovin wrote:
> 
> > NStopped in pid 0.2 (system) at  netbsd:sse2_idlezero_page+0x18: jnz
> > netbsd:sse2_idlezero_page+0x46
> > 
> > Is there some kernel option or patch I could try to make the kernel
> > go to the backtrace function immediately?  
> 
> Look for this line in arch/i386/i386/trap.c:
> 
>       printf ("NMI ... going to debugger\n");
> 
> Please change it to:
> 
>       printf ("NMI ... going to debugger cr4=%lx\n", (long)rcr4());
> 
> It may be that SSE is not enabled for some reason.
> 
cr4=690

Btw -- both machines have the same BIOS version, A03 from 2004.  A09 is
available; it's about two years newer.  I wonder if installing it would
make life better or worse...


                --Steve Bellovin, http://www.cs.columbia.edu/~smb