use invd instead of wbinvd in real mode start code

[Wolfgang Denk]

Dear Andy,

In message <CAHp75VdUY7zJfkc4YV-KTt1aEKg9Ggy6PsJAEOkgo9eCtQx9Kg at mail.gmail.com> you wrote:
>
> > > git bisect is the usual way to figure out the culprit.
> >
> > Too much work to do this way.

If you find bisecting is too much work you probably still do it
manually. Why don't you use  tbot  to automize such boring and time
consuming tasks?

Best regards,

Wolfgang Denk

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