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    SubjectRe: i486 emu in mainline?
    Willy Tarreau wrote:
    > On Sun, May 23, 2004 at 06:51:30AM -0400, Joseph Fannin wrote:
    >>On Sun, May 23, 2004 at 10:29:12AM +0200, Willy Tarreau wrote:
    >>>On Sun, May 23, 2004 at 01:40:59AM +0200, Christoph Hellwig wrote:
    >>>>These days gcc uses i486+ only instruction by default in libstdc++ so
    >>>>most modern distros wouldn't work on i386 cpus anymore. To make it work
    >>>>again Debian merged Willy Tarreau's patch to trap those and emulate them
    >>>>on real i386 cpus. The patch is extremely non-invasive and would
    >>>>certainly be usefull for mainline. Any reason not to include it?
    >>> - I couldn't emulate locks, so this will break on SMP systems, and so
    >>> will it if you need to access some memory share with an external
    >>> microcontroller or something like that.
    >> Does this mean that programs that use the NPTL will work on
    >>non-SMP 386s?
    > I have no idea. Why would NPTL not work on i386 ?

    i386 doesn't have the necessary instructions.
    It's my understanding that the following is not being maintained:

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