linux-kernel - Re: [PATCH 15/18] x86 vDSO: consolidate vdso32

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Message-Id: <200711210115.10446.ak@suse.de>
Date:	Wed, 21 Nov 2007 01:15:10 +0100
From:	Andi Kleen <ak@...e.de>
To:	Zachary Amsden <zach@...are.com>
Cc:	Roland McGrath <roland@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 15/18] x86 vDSO: consolidate vdso32


> I think you should drop CONFIG_COMPAT_VDSO support for 32-bit VDSO on
> 64-bit kernel.  This was only to hack around a broken version of glibc
> that shipped with SUSE PRO 9.0, 

I would be severly opposed to that. You cannot break compatibility to a large
chunk of userland. You would also break some of my test setups.
 
> Perhaps it is finally time to remove the hack from 32-bit as well, and
> eliminate COMPAT_VDSO entirely?  Or does it really have to live forever.

Yes it has.

-Andi
 
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