Messages in this thread | | | Date | Thu, 3 Jul 2008 08:28:29 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] x86: fix Intel Mac booting with EFI |
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* Ingo Molnar <mingo@elte.hu> wrote:
> * Hugh Dickins <hugh@veritas.com> wrote: > > > Fedora reports that mem_init()'s zap_low_mappings(), extended to SMP > > in 61165d7a035f6571c7576e7f51e7230157724c8d x86: fix app crashes after > > SMP resume causes 32-bit Intel Mac machines to reboot very early when > > booting with EFI. > > > > The EFI code appears to manage low mappings for itself when needed; > > but like many before it, confuses PSE with PAE. So it has only been > > mapping half the space it needed when PSE but not PAE. This remained > > unnoticed until we moved the SMP zap_low_mappings() before > > efi_enter_virtual_mode(). Presumably could have been noticed years > > ago if anyone ran a UP kernel on such machines? > > good spotting! > > Acked-by: Ingo Molnar <mingo@elte.hu>
and also applied to x86/urgent.
Ingo
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