From mboxrd@z Thu Jan  1 00:00:00 1970
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: start_kernel(): bug: interrupts were enabled early
Date: Thu, 01 Apr 2010 09:36:53 +1100
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To: Christoph Lameter <cl@linux-foundation.org>
Cc: Matthew Wilcox <matthew@wil.cx>, "H. Peter Anvin" <hpa@zytor.com>, Yinghai Lu <yinghai@kernel.org>, Andrew Morton <akpm@linux-foundation.org>, Rabin Vincent <rabin@rab.in>, lkml <linux-kernel@vger.kernel.org>, penberg@cs.helsinki.fi, linux-arch@vger.kernel.org

On Wed, 2010-03-31 at 16:42 -0500, Christoph Lameter wrote:
> 
> Do not run the checks while we are in a single threaded context?
> 
> I thought we had some dynamic code patching thingamy that could change
> those when we go to smp mode? 

The problem isn't about checks. Those -will- enable IRQs before it's
safe to do so, the checks are perfectly right to point it out, it -is- a
bug waiting to happen on some random HW.

Cheers,
Ben.