> plus i took to opportunity to reduce the allocation size of PAE-pgds.
> Their size is only 32 bytes, and we allocated a full page. Now the code
> kmalloc()s a 32 byte cacheline for the pgd. (there is a hardware
> constraint on alignment: this cacheline must be at least 16-byte aligned,
> whi
On Sun, 25 Mar 2001, Linus Torvalds wrote:
> So my suggestion for PAE is:
>
> - populate in gdb_alloc() (ie just do the three "alloc_page()" calls to
>allocate the PMD's immediately)
>
>NOTE: This makes the race go away, and will actually speed things up as
>we will pretty much in p
On Sun, 25 Mar 2001, Ingo Molnar wrote:
>
> one nontrivial issue was that on PAE the pgd has to be installed with
> 'present' pgd entries, due to a CPU erratum. This means that the
> pgd_present() code in mm/memory.c, while correct theoretically, doesnt
> work with PAE. An equivalent solution is
On Sun, Mar 25, 2001 at 04:53:37PM +0200, Ingo Molnar wrote:
> one nontrivial issue was that on PAE the pgd has to be installed with
> 'present' pgd entries, due to a CPU erratum. This means that the
> pgd_present() code in mm/memory.c, while correct theoretically, doesnt
> work with PAE. An equiv
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