Messages in this thread | | | Date | Fri, 13 Apr 2007 13:42:46 -0700 | From | "H. Peter Anvin" <> | Subject | Re: Crash while mapping memory in pagetable_init() (Was: Re: .config) |
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Jeremy Fitzhardinge wrote: > H. Peter Anvin wrote: >> I suggest, for clarity and to minimize bloat: > > I think it would save a page, at most. But OK. (Also, if you're > running !PAE, these pages will actually become part of the init_mm > pagetable, so there's no memory wastage at all.)
Even with PSE?
However, the main reason I wanted it done that way is to avoid cargo cult programming; this makes it much clearer where the numbers actually come from.
>> #ifdef CONFIG_X86_PAE >> # define PAGE_TABLE_SIZE ((2048+4)*4096) >> #else >> # define PAGE_TABLE_SIZE ((1024+1)*4096) > > 1024 should be enough; the pgd is still swapper_pg_dir, and there are no > pmds.
Check.
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