Messages in this thread | | | Date | Wed, 9 Jul 2008 10:00:06 -0700 | From | Suresh Siddha <> | Subject | Re: [patch] tip/x86_64: fix e820 merge issue which broke max_pfn_mapped |
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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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