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    SubjectRe: 9a2d43b: __alloc_bootmem_core(): zero-sized request
    On Sat, Aug 23, 2008 at 9:12 AM, Johannes Weiner <hannes@saeurebad.de> wrote:
    > "Vegard Nossum" <vegard.nossum@gmail.com> writes:
    >>
    >> I was trying out
    >>
    >> commit 9a2d43b7566caeeeb414aa628bc2759028897dbb
    >> Date: Tue Jul 15 21:21:43 2008 +0200
    >>
    >> ..as part of the debugging of a different issue, but I got this:
    >>
    >> __alloc_bootmem_core(): zero-sized request

    [...]

    >> I saw some bootmem errata lately, can I cherry-pick anything to fix
    >> this?
    >
    > This behaviour hasn't changed after the rewrite.

    Yep, the error is somewhere else.

    Inserted a printk("nr_kernel_pages = %llu\n", nr_kernel_pages); and
    this is the output:

    nr_kernel_pages = 13869392367443771392

    ...it looks very, very big. I think this is initialized via
    free_area_init_*() functions, which come from arch code. Does x86
    experts know if any of this changed recently (i.e. after July 15)?

    The whole dmesg and config can be seen here:
    http://userweb.kernel.org/~vegard/bugs/20080824-numa/


    Vegard

    --
    "The animistic metaphor of the bug that maliciously sneaked in while
    the programmer was not looking is intellectually dishonest as it
    disguises that the error is the programmer's own creation."
    -- E. W. Dijkstra, EWD1036


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