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Date:      Tue, 19 Jun 2012 07:54:03 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        freebsd-stable@freebsd.org
Cc:        "mnln.l4" <mnln.l4@gmail.com>
Subject:   Re: Kernel panic at early boot time
Message-ID:  <201206190754.03765.jhb@freebsd.org>
In-Reply-To: <CALOP8J-2dEkFmmYS8u4sJSaPTbSssYeYxnfqc6N1AMdv88kz3Q@mail.gmail.com>
References:  <CALOP8J-2dEkFmmYS8u4sJSaPTbSssYeYxnfqc6N1AMdv88kz3Q@mail.gmail.com>

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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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