Switching Fedora to pae kernel by default?

Kyle McMartin kyle at infradead.org
Mon Jan 19 16:40:41 UTC 2009


On Mon, Jan 19, 2009 at 11:23:26AM -0500, Bill Nottingham wrote:
> Dave Jones (davej at redhat.com) said: 
> > On Mon, Jan 19, 2009 at 03:49:20PM +0200, Avi Kivity wrote:
> >  > This probably comes up once in a while, thought I'd raise it again.
> >  > 
> >  > I'd like to suggest switching the default kernel to -PAE on machines 
> >  > that support it, for the following reasons:
> >  > 
> >  > - many machines have 4GB+ these days, even desktops
> >  > - NX is only available with -PAE, improves security
> >  > - kvm is significantly faster on AMD when PAE is selected (since we 
> >  > don't support NPT on non-PAE)
> > 
> > What's needed to set this by default is changes in anaconda.
> > They have their own list at anaconda-list at redhat.com
> 
> anaconda-devel-list, actually. But I could have sworn we already did this.
> 

Unless we keep the non-PAE i586 kernel around as a fallback, we're not
going to be able to boot on a whole raft of crappy i386 chips (original
Pentium M most notably...)

regards, Kyle




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