Removing vm86 support?

Adam Jackson ajax at
Wed Jul 8 13:48:02 UTC 2015

On Tue, 2015-07-07 at 16:20 -0700, Andrew Lutomirski wrote:

> I'm asking here because Fedora seems to one of few distros that
> enables CONFIG_VM86 on 32-bit kernels.
> Would anyone object if the upstream kernel (and hence Fedora) removed
> vm86 support?  This would break 16-bit real mode programs under
> dosemu.  It would have no effect on 16-bit protected mode programs
> under dosemu (i.e. anything that works on a 64-bit kernel), on dosbox
> (which you should be using instead of dosemu anyway) or on KVM (which
> is also a much better option than dosemu).

We don't even have dosemu packaged.  Haven't since RHL 7.1 power tools,
if brew is to be believed, certainly never in Fedora.

I have occasionally appreciated the ability to compare vm86 to x86emu
when debugging vesa failures, but that's rapidly ceasing to be a thing
I need to care about.  I do wonder why its something that needs to be
removed entirely instead of locked in a disused filing cabinet in the
basement, but I'm not going to shed any tears if it goes away.

- ajax

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