Re: NetBSD 7.1 i386 on Virtualbox (fatal breakpoint trap in supervisor mode)

[Thor Lancelot Simon <tls%panix.com@localhost>]

On Sun, Jul 16, 2017 at 05:35:09PM +0000, Valery Ushakov wrote:
> 
> Right, because you use VT-x.  Older CPUs and low-end CPUs (atoms)
> don't have VT-x.  Even if your CPU supports it, you might also need to
> explicitly enable VT-x in BIOS (not a problem for OSX).

I think even all current-production Atom CPUs have VT-x, and have for
a few years now.

The problem with VirtualBox without VT-x is that their trick of
patching the guest OS to run in ring 3 doesn't play nice with our
method of dynamically patching various primitives in the kernel to
be efficient in particular machine configurations.  I thought they'd
fixed that, though...

Thor