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Date: Wed, 20 Feb 2013 21:17:16 +0400
From: Ruslan Makhmatkhanov <cvs-src@yandex.ru>
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To: "O. Hartmann" <ohartman@zedat.fu-berlin.de>
Subject: Re: Revision: 247040: kernel crashes with funny blinking characters
 on console on Ivy-Bridge CPUs
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Cc: Current FreeBSD <freebsd-current@FreeBSD.org>
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O. Hartmann wrote on 20.02.2013 18:36:
> Compiling most recent sources of CURRENT with Revision: 247040 results
> in a kernel crash with funny blinking characters on the screen. This
> happens on all systems with different amd64 Intel CPU generations at
> this very moment.
>
> Last working sources (reverting and booting kernel.old) is in my case
>
>
>   FreeBSD 10.0-CURRENT #0 r246949: Mon Feb 18 22:18:42 CET 2013
>
>
> Does anyone also experience this?
>
> Another remote experimental box, equipted with a Intel Q6600 CPU, is
> crashed, I have to investigate this when I get to the lab later. It
> seems not to be related only to Sandy-Bridge-E/Ivy-Bridge CPUs.
>
>
> Regards,
> Oliver

I just updated from r246618 to r247044 (kernel only, built with old 
world) and everything works as expected. I have:
CPU: Intel(R) Core(TM) i5-2430M CPU @ 2.40GHz (2394.62-MHz K8-class CPU)

I may build new world and build new kernel with it if it's may help to 
reproduce.

-- 
Regards,
Ruslan

Tinderboxing kills... the drives.