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    SubjectRe: is there a limit on bss size?
    It is not so difficult as it looks.
    The master pgd looking as:

    .org 0x1000
    ENTRY(swapper_pg_dir)
    .long 0x00102007
    .long 0x00103007
    .fill BOOT_USER_PGD_PTRS-2,4,0
    /* default: 766 entries */
    .long 0x00102007
    .long 0x00103007
    /* default: 254 entries */
    .fill BOOT_KERNEL_PGD_PTRS-2,4,0


    should become:


    .org 0x1000
    ENTRY(swapper_pg_dir)
    .long 0x00102007
    .long 0x00103007
    .... # every entry addresses 4 MB exactly
    .... # so add as much as you want
    .long 0x0010X007
    .fill BOOT_USER_PGD_PTRS-X+2,4,0
    /* default: 766-X entries */
    .long 0x00102007
    .long 0x00103007
    .... # every entry addresses 4 MB exactly
    .... # so add as much as you want
    /* default: 254-X entries */
    .fill BOOT_KERNEL_PGD_PTRS-X+2,4,0


    empty_zero_page, empty_bad_page, etc... offsets should be also
    appropriately changed and the corresponding code in mm init as
    well.


    But i honestly don't see the point of all that.


    best,
    Petkan
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