linux-kernel - Re: [patch 2/2] x86: lds - Use THREAD

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Message-ID: <20080217190801.GC31968@cvg>
Date:	Sun, 17 Feb 2008 22:08:01 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	ak@...e.de, mingo@...e.hu, tglx@...utronix.de, hpa@...or.com,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 2/2] x86: lds - Use THREAD_SIZE instead of numeric
	constant

[Sam Ravnborg - Sun, Feb 17, 2008 at 07:59:36PM +0100]
| On Sun, Feb 17, 2008 at 06:17:18PM +0300, Cyrill Gorcunov wrote:
| > Though we use PDA for regular task stack but that
| > is not acceptable for init_task wich is special
| > one. We still have to allocate init_task's stack
| > in that manner.
| 
| hpa had some comments about this particular alignment.
| If we keep the alignmnet then Cyrill's patch looks good.
| 
| But maybe we should check what is the real alignmment
| requirement (outside the scope of wha you do - someone
| more intiminate with this coide should do it).
| 
| 	Sam
| 

Yes Sam, I've read Peter and Ingo comments on this patch
(actually I sent the same patch maybe week ago and Peter
and Ingo told me that we use %fs,%gs now for stack) but
as I pointed in comment - this alignment is still using
by Xen and lguest and even x86. So - it would be really
usefull for me if someone give me the last point - YES we
use such an alignment for stack, NO - we don't use it at all.
I was trying to hadle this myself - but I'm not a specialist
in this area you know ;)

		- Cyrill -
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