VirtualBox 4.3.6 (released 2013-12-18)

This is a maintenance release. The following items were fixed and/or added:

• VMM: fixed a Guru Meditation VINF_EM_TRIPLE_FAULT caused by VMCB caching with nested paging on certain AMD CPUs (bug #12451)
  
• VMM: fixed a Guru Meditation VERR_VMX_UNEXPECTED_INTERRUPTION_EXIT_TYPE while intercepting debug exceptions (VT-x only; bug #12410)
  
• VMM: fixed a Guru Meditation VERR_SVM_UNEXPECTED_EXIT while intercepting debug register accesses (AMD-V only; bug #12481)
  
• VMM: fixed a VERR_SSM_STRUCTURE_MAGIC error when trying to load a saved state made with VBox 4.3.4 when VT-x/AMD-V is disabled. Unfortunately, VBox 4.3.4 produced broken saved states for this configuration so you have to discard these states (bug #12414)
  
• VMM: added a few more MSRs to the whitelist required by certain guests (bug #12245)
  
• GUI: fixed deleting of inaccessible VMs (4.3 regression, bug #12205)
  
• GUI: fixed warnings in VM settings / number of guest processors (bug #12480)
  
• Main: don´t automatically enable 64-bit guests on 64-bit hosts if VT-x/AMD-V is not available (bug #12424)
  
• Main: always expose the DMI memory information to Windows 2012 guests (bug #12017)
  
• Main: fixed occasional crashes on guest display resolution change (bug #7063)
  
• Main: fixed reporting back temporary name when calling IGuestSession::DirectoryCreateTemp() (bug #12498)
  
• API: fix for a hang when launching a GUI VM through the API, which crashes due to GUI unavailability
  
• Storage: fix for BLKCACHE_IOERR runtime errors under rare circumstances (bug #11030)
  
• Network: allow to start more than 5 PCNet instances (bug #12426)
  
• E1000: if the cable was disconnected before the guest initialized the device, the link status was not properly set to ´down´ after the initialization completed despite the fact that there was no connection
  
• 3D support: fixed offset of guest 3D image elements (Mac OS X Retina hosts only; bug #11021)
  
• Solaris hosts: fixed accessing the host driver from non-global zones (4.3 regression, bug #12271)