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    SubjectNew vm86 in 2.1.15, (dosemu needs upgrade)


    Thanks to Linus, we now have (the long wanted ;-) enhanced support for
    dosemu in the kernel, hence for kernels >= 2.1.15 the emumodule is no
    longer needed. However, you have to keep the following in mind:

    1. The first vm86plus patch that was distributed with dosemu-0.64.1 is
    not compatible with the final one, because we did change the syscall
    interface for vm86. The old one behaves exactly as before, the new one
    is syscall 166 and currently only used by dosemu-0.64.2.
    Dosemu binaries compiled for the old _vm86plus_ interface will
    not work on kernel 2.1.15.

    2. The vm86.h interfaces between 2.1.5 and 2.1.14 reflected the kernel's
    internal pt_regs structure, hence did not contain FS/GS.
    Now both user space interfaces (for 2.0.x and 2.1.x) are the same,
    ( the kernel translates to its own structure )
    and you should be able to run a 2.0 compiled binary on 2.1 and vice
    versa. However, binaries compiled on 2.1.5 ... 2.1.14 will bomb on

    If you are interested in more details of the changes, have a look at
    dosemu/doc/README.kernelpatches and get the new dosemu from

    ( it hopefully should be there tomorrow )


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