linux-kernel - Re: [regression] Re: brk randomization breaks columns

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Message-ID: <20080205125426.GA27724@elte.hu>
Date:	Tue, 5 Feb 2008 13:54:26 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Pavel Machek <pavel@....cz>, Andrew Morton <akpm@...l.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	kernel list <linux-kernel@...r.kernel.org>,
	Abel Bernabeu <abel.bernabeu@...il.com>,
	Hugh Dickins <hugh@...itas.com>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [regression] Re: brk randomization breaks columns


* Jiri Kosina <jkosina@...e.cz> wrote:

> On Tue, 5 Feb 2008, Pavel Machek wrote:
> 
> > > Actually, this clearly shows that either prehistoric libc.so.5 or the 
> > > program itself are broken.
> > I believe it shows clear regression in latest 2.6.25 kernel.
> 
> I am still not completely sure. It might be a regression, but it also 
> might just trigger the bug in ancient version in libc.so.5 which might 
> be fixed in some later version [...]

which too is a regression ...

really, lets add a sysctl for this, and a .config option that either 
disables or enables it. Then we will default to disabled. (but users can 
enable it - and distros can build their kernels with this .config option 
enabled)

	Ingo
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