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    SubjectRe: [tip:x86/urgent] x86: Add back _end symbol that is missing from Symbol.map
    On Sun, Nov 08, 2009 at 11:07:12AM +0000, tip-bot for Hannes Reinecke wrote:
    > Commit-ID: d1e4d37b79e944f6351ae38eb1ca7c9f7b506e76
    > Gitweb: http://git.kernel.org/tip/d1e4d37b79e944f6351ae38eb1ca7c9f7b506e76
    > Author: Hannes Reinecke <hare@suse.de>
    > AuthorDate: Wed, 4 Nov 2009 07:19:32 -0800
    > Committer: Ingo Molnar <mingo@elte.hu>
    > CommitDate: Sun, 8 Nov 2009 12:05:03 +0100
    >
    > x86: Add back _end symbol that is missing from Symbol.map
    >
    > With 2.6.31 'crash' on x86_64 falls flat on its face as the
    > '_end' symbol is missing from the System.map file.
    >
    > The culprit is commit 091e52c3551d3031343df24b573b770b4c6c72b6,
    > which moved the '_end' symbol into it's own section. Apparently
    > this causes kallsyms to not reference it properly.
    >
    > So do not include _end in it's own section.
    >
    > Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    > Cc: Sam Ravnborg <sam@ravnborg.org>
    > Cc: <stable@kernel.org> # .31.x
    > LKML-Reference: <200911041519.nA4FJWEW030164@imap1.linux-foundation.org>
    > Signed-off-by: Ingo Molnar <mingo@elte.hu>

    I'm afraid this will break a RELOCTABLE i386 kernel.

    We fixed this up some time ago where we had to
    move the symbol definition inside a section
    to prevent the symbol being absolute.

    Sam


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