[Bug 230460] emulators/virtualbox-ose panic on CURRENT

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230460

--- Comment #21 from Vladimir Kondratyev <wulf at freebsd.org> ---
(In reply to Konstantin Belousov from comment #20)
> 1. Why vbox needs to access userspace
> 2. If the item 1 is legitimate, why doesn't vbox use copyin(9) KPI.

I don't know. I can only guess it is to reduce amount of system-dependent code.
Really, vbox kmod is very strange thing. After a few hours of digging I got an
impression that it is not a kernel part of VBox but is a loader that loads into
kernel memory and initializes RING0 parts of emulator on each? VM start.

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