Thanks for explaining the cause!

On Tue, Jun 19, 2012 at 4:54 AM, John Baldwin <j...@freebsd.org> wrote:

> On Sunday, June 17, 2012 2:35:14 pm mnln.l4 wrote:
> > I get a kernel panic at early boot time on 9.0-stable (r237150), GENERIC,
> > AMD64.
> >
> > Repro step:
> > 1. Boot, wait for welcome screen.
> > 2. Repeat pressing Enter key rapidly (so kernel is loading, don't stop
> > pressing Enter key).
> > 3. See the following message at early boot
>
> So don't do that.  All your key presses are triggering SMI# events that are
> interfering with the AP's ability to respond to its startup IPI.  There is
> nothing we can do about this in the OS.
>
> --
> John Baldwin
>
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