Hi folks! According to git commit e3089a (https://reviews.freebsd.org/D1463) FreeBSD 12.0 i386 uses separate address spaces for kernel and user space. So basically two memory areas, one in each space, can have the same address. Is this possible with FreeBSD 12.0? Is this likely to happen?
On my opinion, this is also very expensive in terms of performance.
Any copy{in,out} has to flush the TLB.
(http://fxr.watson.org/fxr/source/i386/i386/copyout_fast.s#L91)
Why are you still using this 4G/4G approach?
Regards,
Alex
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