VirtualBox mangles memory

[Martin Birgmeier]

On machines where VirtualBox is running, I get memory allocation errors.

'dd' aborts with 'dd: stdout: Cannot allocate memory'

'zfs send' aborts with 'internal error: Cannot allocate memory'

I have created https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195970
to track this.

Could a knowledgeable person please have a look into this?

FreeBSD 10.2, VirtualBox 4.3.30

-- Martin