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SubjectRe: [patch] tip/x86_64: fix e820 merge issue which broke max_pfn_mapped
On Tue, Jul 08, 2008 at 05:59:39PM -0700, Yinghai Lu wrote:
> On Tue, Jul 8, 2008 at 4:08 PM, Suresh Siddha <suresh.b.siddha@intel.com> wrote:
> > With out this 64bit tip/master doesn't boot using ACPI on my system.
> > ---
> >
> > max_pfn_mapped should include all e820 entries.
> > The direct mapping extends to max_pfn_mapped, so that we can directly access
> > apertures, ACPI and other tables without having to play with fixmaps.
> >
> > With this, my system with 1GB memory boots fine with ACPI enabled.
>
> so without this patch, your system doesn't boot?

It doesn't enable ACPI and hence doesn't bringup SMP etc etc..


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