On Tue, Jul 31, 2007 at 10:32:14AM +0200, Stef Bon wrote: > > As I can see in the CBLFS book, there a lot of applications which do compile > and run on a 64-bits system. Are there applications/packages which don't?? > Probably (old ones). I can remember having to update config.guess and config.sub on some packages. [...] > Futher you notice that on a 32 bits system (which I now have) you have to > enable > himem support in the kernel to get beyond 900MB ram.. I have 1G ram, but it > only > uses 884 MB ram. I'm wondering why. How does this work? Do I have to enable > the > himem support in the kernel? In the help of this option I read that I have to > enable it only > when there is between 1G and 4G. > Yeah, 900 was an approximate figure. I forget the details. To get more, you do have to enable himem in the kernel. For exactly 1GB it probably isn't a great benefit, but I haven't tried to benchmark that.
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