Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels

Linus Torvalds
2014-04-11T18:41:06Z

On Fri, Apr 11, 2014 at 11:27 AM, Brian Gerst <brgerst@gmail.com> wrote:
> Is this bug really still present in modern CPUs? This change breaks
> running 16-bit apps in Wine. I have a few really old games I like to
> play on occasion, and I don't have a copy of Win 3.11 to put in a VM.

Ok, so you actually do this on x86-64, and it currently works? For
some reason I thought that 16-bit windows apps already didn't work.

Because if we have working users of this, then I don't think we can do
the "we don't support 16-bit segments", or at least we need to make it
runtime configurable.

Linus