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    SubjectRe: bzImage ~ 900K with i386 test11-pre2
    On Sat, 11 Nov 2000, Tigran Aivazian wrote:

    > On Fri, 10 Nov 2000, H. Peter Anvin wrote:
    > > >
    > > > On x86 machines there is a size limitation on booting. Though I thought
    > > > it was 1024K as the max, 900K should be fine.
    > > >
    > >
    > > No, there isn't. There used to be, but it has been fixed.
    > >
    > Are you sure? I thought the fix was to build 2 page tables for 0-8M
    > instead of 1 page table for 0-4M. So, we still cannot boot a bzImage more
    > than 2.5M which roughly corresponds to 8M. Is this incorrect? Are you
    > saying I should be able to boot a bzImage corresponding to an ELF object
    > vmlinux of 4G or more?
    > I tried it and it failed (a few weeks ago) so at least reasonably recently
    > what you are saying was not true. I will now check if it suddenly became
    > true now.

    Just to clarify -- I always eat words on the first round -- of course I
    know that there is no limit at 1M, that is obvious -- what I do _not_ know
    if there is no limit at 2.5M -- this is non-obvious and requires proof.


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