linux-kernel - Re: [crash, bisected] Re: [PATCH 3/4] x86

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Date:	Tue, 01 Jul 2008 23:11:43 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	ebiederm@...ssion.com (Eric W. Biederman)
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>,
	"H. Peter Anvin" <hpa@...or.com>, Mike Travis <travis@....com>,
	Christoph Lameter <clameter@....com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [crash, bisected] Re: [PATCH 3/4] x86_64: Fold pda into per cpu area

ebiederm@...ssion.com (Eric W. Biederman) writes:
>
> Has anyone investigated using the technique gcc uses for thread local storage?

I investigated a long time ago (given when the binutils/gcc support
was much more primitive) and my conclusion back then was that doing 
the same for kernel module (negative addresses) would need 
new relocation types.  And the pain of a binutils change didn't
seem worth it.

-Andi
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