linux-kernel - Re: [patch] x86: fix savesegment() bug causing crashes on 64-bit

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Date:	Fri, 11 Jul 2008 10:58:50 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Ingo Molnar <mingo@...e.hu>
CC:	linux-kernel@...r.kernel.org,
	the arch/x86 maintainers <x86@...nel.org>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [patch] x86: fix savesegment() bug causing crashes on 64-bit

Ingo Molnar wrote:
>     
> i spent a fair amount of time chasing a 64-bit bootup crash in 
> tip/master that manifested itself as bootup segfaults:
>   

Crap, I'm sorry.  I fixed this locally a couple of days ago, but I 
hadn't actually observed it causing any problems, so I didn't rush to 
push it out.

> The solution is to only allow segment operands to go to registers. This 
> fix allows my test-system to boot up without crashing.
>     
> Signed-off-by: Ingo Molnar <mingo@...e.hu>
>   

Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>

    J
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