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SubjectRe: 2.2.10 won't boot w/o keyboard
> 
> In that case one might conjecture that the code to switch A20 on
> failed because empty_8042 returns too early.
> That would explain a hang (namely in a20_wait).
>
> Right now we use 2^16 loops in empty_8042.
> Since we waited infinitely long in 2.2.9, there cannot be a problem
> increasing this number.
>
I thought the same, and since the time out loop is the only thing that is
added to empty_8040 that's probably the reason. One could test it with
increased loop.

Pekka


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