Messages in this thread | | | Subject | Re: [RFC 0/8] Reduce MAX_NR_ZONES and remove useless zones. | From | Arjan van de Ven <> | Date | Tue, 04 Jul 2006 18:47:42 +0200 |
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On Tue, 2006-07-04 at 09:41 -0700, Christoph Lameter wrote: > On Tue, 4 Jul 2006, Arjan van de Ven wrote: > > > > will need to have highmem? I guess the 2G/2G > > > config option changes that? > > > > but that breaks userspace ABI and things that really want a lot of > > memory ;) > > Really? What things does it break? Sorry about my i386 ignorance.
things that assume you can malloc a 2gb area for example, or use a 2Gb stack. Yes fortran apps do that..
> > > Thankfully x86-64 is there, and just about all systems sold today do 64 > > bit.. > > Right but then some binary stuff is only available for 32 bit.
the good news is that x86-64 has a pretty good 32 bit emulation... so that's not an actual problem...
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