Messages in this thread | | | Date | Thu, 20 Jun 2002 08:27:00 -0700 | From | William Lee Irwin III <> | Subject | Re: >3G Memory support |
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On Thu, 20 Jun 2002, Brian Gerst wrote: >> Hardware limitations imposed by the x86 architecture. The x86 only has >> _one_ virtual address space, which has to be shared by user space and >> kernel space. It is not possible to give user space more virtual >> address space without taking it away from the kernel.
On Thu, Jun 20, 2002 at 04:50:26PM +0200, Jirka Kosina wrote: > You can theoretically run kernel in one task (I mean "task" in the > Intel-processor-meaning of the word ;) ) and userspace programs in another > task, which will result in having 4GB of memory for both of them, won't > it?
This is what BIGMEM did. It predated the current highmem implementation.
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