VirtualBox 3.0.6 Released

You’ve got to admit, the VirtualBox team is nothing if not consistent. Despite the complexity of a project such as theirs, the release schedule has been admirable. Major releases arrive periodically, but more importantly, all those annoying little bugs are shored up quickly. 3.0.6 marks the third bugfix release of the 3.0-series and the changelog is a bit longer than usual for such a build.

According to the VirtualBox Web Console Blog, quite a few of the fixes released are directly related to requests from that project. As noted in my preview, VirtualBox Web Console is a great idea, but is just too immature for use. With this new VirtualBox version, hopefully that problem will fix itself even faster.

Aside from Python API-replated adjustments, there’s nothing too out of the ordinary, but I see a couple things that pique my interest:

  • VRDP remote USB protocol 3
    • At first, I thought this had to do with USB 3.0, but it turns out, this is simply an update that “allows to send large packets as fragments” – whatever that means.
  • Restricts guest RAM site to 1.5GB with 32-bit Windows hosts
    • A curious inclusion. Why should it be restricted at all? According to a forum moderator, “there is no room in the 32 bits virtual address space to map the whole guest ram”. I don’t understand how this suddenly changed from prior releases.


Here’s the full changelog as detailed on the official website:

  • VMM: fixed IO-APIC overhead for 32 bits Windows NT, 2000, XP and 2003 guests (AMD-V only; bug #4392)
  • VMM: fixed a Guru meditation under certain circumstances when enabling a disabled device (bug #4510)
  • VMM: fixed a Guru meditation when booting certain Arch Linux guests (software virtualization only; bug #2149)
  • VMM: fixed hangs with 64 bits Solaris & OpenSolaris guests (bug #2258)
  • VMM: fixed decreasing rdtsc values (AMD-V & VT-x only; bug #2869)
  • VMM: small Solaris/OpenSolaris performance improvements (VT-x only)
  • VMM: cpuid change to correct reported virtual CPU id in Linux
  • VMM: NetBSD 5.0.1 CD hangs during boot (VT-x only; bug #3947)
  • Solaris hosts: worked around an issue that caused the host to hang (bug #4486)
  • Solaris hosts: fixed a rare host system deadlock when using bridged networking
  • Solaris hosts: fixed a potential host system deadlock when CPUs were onlined or offlined
  • Solaris hosts installer: added missing dependency for UTF-8 package (bug #4899)
  • Linux hosts: don’t crash on Linux PAE kernels < 2.6.11 (in particular RHEL/CentOS 4); disable VT-x on Linux kernels < 2.6.13 (bug #1842)
  • Linux/Solaris hosts: correctly detect keyboards with fewer keys than usual (bug #4799)
  • Mac OS X hosts: prevent password dialogs in 32 bits Snow Leopard
  • Python WS: fixed issue with certain enumerations constants having wrong values in Python webservices bindings
  • Python API: several threading and platform issues fixed
  • Python shell: added exportVM command
  • Python shell: various improvements and bugfixes
  • Python shell: corrected detection of home directory in remote case
  • OVF: fixed XML comment handling that could lead to parser errors
  • Main: fixed a rare parsing problem with port numbers of USB device filters in machine settings XML
  • Main: restrict guest RAM size to 1.5 GB (32 bits Windows hosts only)
  • Main: fixed possible hang during guest reboot (bug #3792)
  • GUI: fixed rare crash when removing the last disk from the media manager (bug #4795)
  • VBoxManage: fixed guestproperty for Mac OS X hosts (bug #3806)
  • VBoxManage: fixed setting guest properties with –flags or -flags
  • Webservice: fixed a severe memory leak, at least on platforms using XPCOM
  • Serial: fixed host mode (Solaris, Linux and Mac OS X hosts; bug #4672)
  • VRDP: Remote USB Protocol version 3
  • SATA: fixed hangs and BSODs introduced with 3.0.4 (bugs #4695, #4739, #4710)
  • SATA: fixed a bug which prevented Windows 7 from detecting more than one hard disk
  • SATA/SCSI: fixed rare random guest crashes and hangs
  • SCSI: fixed problem with Fedora 11 refusing to boot after kernel update
  • iSCSI: fix logging out when the target has dropped the connection, fix negotiation of simparameters, fix command resend when the connection was dropped, fix processing SCSI status for targets which do not use phase collapse
  • BIOS: fixed a bug that caused the OS/2 boot manager to fail (2.1.0 regression, bug #3911)
  • PulseAudio: don’t hang during VM termination if the connection to the server was unexpectedly terminated (bug #3100)
  • Mouse: fixed weird mouse behaviour with SMP (Solaris) guests (bug #4538)
  • HostOnly Network: fixed failure in CreateHostOnlyNetworkInterface() on Linux (no GUID)
  • HostOnly Network: fixed wrong DHCP server startup while hostonly interface bringup on Linux
  • HostOnly Network: fixed incorrect factory and default MAC address on Solaris
  • HostOnly Network: fixed the problem with listing host-only interfaces on Mac OS X when all physical interfaces are down (bugs #4698, #4790)
  • DHCP: fixed a bug in the DHCP server where it allocated one IP address less than the configured range
  • E1000: fixed receiving of multicast packets
  • E1000: fixed up/down link notification after resuming a VM
  • NAT: fixed ethernet address corruptions (bug #4839)
  • NAT: fixed hangs, dropped packets and retransmission problems (bug #4343)
  • Bridged Network: fixed packet queue issue which might cause DRIVER_POWER_STATE_FAILURE BSOD for Windows hosts (bug #4821)
  • Windows Additions: fixed a bug in VBoxGINA which prevented selecting the right domain when logging in the first time
  • Windows host installer: should now also work on unicode systems (like Korean, bug #3707)
  • Windows host installer: check for sufficient disk space
  • Shared clipboard: do not send zero-terminated text to X11 guests and hosts (bug #4712)
  • Shared clipboard: use a less CPU intensive way of checking for new data on X11 guests and hosts (bug #4092)
  • Guest Additions: do not hide the host mouse cursor when restoring a saved state (bug #4700)
  • Windows guests: fixed issues with the display of the mouse cursor image (bugs #2603, #2660 and #4817)
  • SUSE 11 guests: fixed Guest Additions installation (bug #4506)
  • Guest Additions: support Fedora 12 Alpha guests (bugs #4731, #4733 and #4734)

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