Re: [RFC][PATCH] allow bigger PAGE_OFFSET with PAE

[William Lee Irwin III <wli@holomorphy.com>]

On Tue, Jan 07, 2003 at 12:06:38PM -0800, Dave Hansen wrote:
>>> Also, this gets the kernel's pagetables right, but neglects 
>>> userspace's for now.  pgd_alloc() needs to be fixed to allocate 
>>> another PMD, if the split isn't PMD-alighed.

William Lee Irwin III wrote:
>> Um, that should be automatic when USER_PTRS_PER_PGD is increased.

On Wed, Jan 08, 2003 at 01:04:23PM -0800, Dave Hansen wrote:
> Nope, you need a little bit more.  pgd_alloc() relies on its memcpy() 
> to provide the kernel mappings.  After the last user PMD is allocated, 
> you still need to copy the kernel-shared part of it in.

See the bit about rounding up. Then again, the pmd entries don't get
filled in by any of that...


Bill
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