User's Manual

12 Change log
• VMM: deactivate VT-x and AMD-V when the host machine goes into suspend
mode; reactivate when the host machine resumes (Windows, Mac OS X & Linux
hosts; bug #1660)
• VMM: fixed guest hangs when restoring VT-x or AMD-V saved states/snapshots
• VMM: fixed guru meditation when executing a one byte debug instruction (VT-x
only; bug #2617)
• VMM: fixed guru meditation for PAE guests on non-PAE hosts (VT-x)
• VMM: disallow mixing of software and hardware virtualization execution in gen-
eral (bug #2404)
• VMM: fixed black screen when booting OS/2 1.x (AMD-V only)
• GUI: pause running VMs when the host machine goes into suspend mode (Win-
dows & Mac OS X hosts)
• GUI: resume previously paused VMs when the host machine resumes after sus-
pend (Windows & Mac OS X hosts)
• GUI: save the state of running or paused VMs when the host machine’s battery
reaches critical level (Windows hosts)
• GUI: properly restore the position of the selector window when running on the
compiz window manager
• GUI: properly restore the VM in seamless mode (2.0 regression)
• GUI: warn user about non optimal memory settings
• GUI: structure operating system list according to family and version for improved
usability
• GUI: predefined settings for QNX guests
• IDE: improved ATAPI passthrough support
• Networking: added support for up to 8 Ethernet adapters per VM
• Networking: fixed issue where a VM could lose connectivity after a reboot
• iSC SI: allow snapshot/diff creation using local VDI file
• iSC SI: improved interoperability with iSCSI targets
• Graphics: fixed handling of a guest video memory which is not a power of two
(bug #2724)
• VBoxManage: fixed bug which prevented setting up the serial port for direct
device access
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