From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: David Newall <davidn@davidnewall.com>
Subject: Re: Regressions in the last kernels
Date: Sun, 15 Jun 2008 19:31:21 +0200
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Cc: werner <werner@sys-linux.yi.org>, linux-kernel@vger.kernel.org
References: <1213467969.31034@sys-linux.yi.org> <200806151301.42469.rjw@sisk.pl> <48552C98.1020105@davidnewall.com>
In-Reply-To: <48552C98.1020105@davidnewall.com>
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On Sunday, 15 of June 2008, David Newall wrote:
> Rafael J. Wysocki wrote:
> > On Sunday, 15 of June 2008, David Newall wrote:
> >   
> >> werner wrote:
> >>     
> >>> During preparation and own testing for my distro; installation on computers
> >>> for neighbours, by reclamations by users, I learned about the following
> >>> problems of 2.6.26-rcX :  
> >>>
> >>> 1) When compiling for i486,  one cannot select/configurate more memory than
> >>> 4 GB, menuconfig don't show items with higher values. 
> >>>   
> >>>       
> >> Is not the i486 limited to a 4GB address space?
> >>     
> >
> > The point, if I understand it correctly, is that if you compile the kernel for
> > i486 and then run it on something that does support PAE, it will only see
> > 4 GB of RAM.
> 
> Rather like compiling it for i486 and running it on ia64: you ask for an
> i486, you don't get to use features beyond that CPU.

Sure, that's reasonable.

Thanks,
Rafael
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