Thema: VirtualBox ...

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VirtualBox 4.0.8 (released 2011-05-16)

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

    Mac OS X hosts: fixed incompatibility with recent Mac OS X versions in 64-bit mode (bug #8474)
    Mac OS X hosts: fixed incompatibility with hosts with more than 16 cores (bug #8389)
    Mac OS X hosts: fixed painting corruptions on a second monitor in 64-bit mode (bug #7606)
    GUI: restored functionality to set an empty host key to disallow any host key combination (4.0.6 regression; bug #8793)
    VBoxManage: added controlvm screenshotpng subcommand for saving the screenshot of a running VM in PNG format
    VBoxHeadless: fixed potential crash during shutdown (Windows hosts only)
    NAT: built-in services use the correct Ethernet addresses in Ethernet header and in ARP requests
    Host-only networking: fixed adapter reference counting
    E1000: fixed rare guest crashes with Linux SMP guests (bug #8755)
    SATA: fixed guest disk corruption under rare circumstances (only relevant for guests with more than 2GB RAM; bug #8826)
    Storage: fixed data corruption after a snapshot was taken with asynchronous I/O enabled (bug #8498)
    Floppy: several improvement
    HPET: another fix for time jumps (bug #8707)
    USB: removed assumption that string descriptors are null-terminated (Windows hosts only)
    3D support: fixed a potential crash when resizing the guest window
    3D support: fixed GNOME 3 rendering under Ubuntu 11.04 and Fedora 15
    Snapshots: fixed another bug which could lose entries in the media registry when restoring a snapshot (bug #8363)
    Shared Folders: don't stop mounting the other valid folders if one host folder is inaccessible (4.0.6 regression)
    Linux Additions: check whether gcc and make are installed before building kernel modules (bug #8795)
    Solaris Additions: added support for X.Org Server 1.10
    Guest Additions: fixed inappropriate Guest Additions update notification when using vendor-specific version suffixes (bug #8844)

http://www.virtualbox.org/

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

• GUI: fixed disappearing settings widgets on KDE hosts (bug #6809)
• Storage: fixed hang under rare circumstances with flat VMDK images
• Storage:  a saved VM could not be restored under certain circumstances after the host
kernel was updated (bug #8983)
• Storage: refuse to create a medium with an invalid variant (for example Split2G with VDI;
bug #7227)
• iSCSI: pause the VM if a request times out
• Snapshots: none of the hard disk attachments must be attached to another VM in normal
mode when creating a snapshot
• USB: fixed occasional VM hangs with SMP guests (bug #4580)
• USB: proper device detection on RHEL/OEL/CentOS 5 guests (partial fix for bug #8978)
• ACPI: force the ACPI timer to return monotonic values for improve behavior with SMP
Linux guests (bug #8511 and others)
• RDP: fixed screen corruption under rare circumstances (bug #8977)
• rdesktop-vrdp: updated to version 1.7.0
• OVF: under rare circumstances some data at the end of a VMDK file was not written during
export
• Mac OS X hosts: Lion fixes
• Mac OS X hosts: GNOME 3 fix
• Linux hosts: fixed VT-x detection on Linux 3.0 hosts (bug #9071)
• Linux hosts: fixed Python 2.7 bindings in the universal Linux binaries
• Windows hosts: fixed leak of thread and process handles
• Windows Additions: fixed bug when determining the extended version of the Guest Addi-
tions (4.0.8 regression; bug #8948)
183• Solaris Additions: fixed installation to 64-bit Solaris 10u9 guests (4.0.8 regression)
• Linux Additions: RHEL6.1/OL6.1 compile fix
• Linux Additions: fixed a memory leak during VBoxManage  guestcontrol  execute (bug
#9068)

http://download.virtualbox.org/virtualbox/4.0.10/

http://www.virtualbox.org/

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Oracle hat die erste Beta-Version von VirtualBox 4.1 freigegeben. Zu den wichtigsten Neuerungen gegenüber der aktuellen Version 4.0.10 gehört die Möglichkeit, virtuelle Maschinen zu klonen. Auf 64-Bit-Hosts kann VirtualBox jetzt bis zu einem TByte RAM nutzen.

Der Wizard zum Anlegen neuer virtueller Platten wurde überarbeitet, ein neuer Wizard vereinfacht das Duplizieren virtueller Platten. Für Windows-Gäste steht jetzt ein experimenteller WDDM-Treiber (Windows Display Driver Model) zur Verfügung. Die Release Notes nennen weitere Neuerungen. VirtualBox 4.1 steht für Linux (32 und 64 Bit], Mac OS X, Solaris und Windows zum Download zur Verfügung.

VirtualBox 4.1 will be a new major release. The following major new features were added:

    Support for cloning of VMs (bug #5853)
    GUI: enhanced wizard for creating new virtual disks
    GUI: new wizard for copying virtual disks
    VMM: raised the memory limit for 64-bit hosts to 1TB
    Windows guests: Experimental WDDM graphics driver
    Guest Additions: modules and features now are represented as facilities to have a common interface for frontends.
    New Networking Mode: UDP Tunnel. Allows to interconnect VMs running on different hosts easily and transparently, see the manual for more information.

In addition, the following items were fixed and/or added:

    VMM: more SMP timer fixes
    VMM: fixed sporadic recompiler crashes with SMP guests
    VMM: many small fixes
    GUI: when reverting to a snapshot, ask for taking a snapshot of the current state
    GUI: added View menu
    GUI: added setting for the promiscuous mode policy for internal networks, bridged networks and host-only networks
    GUI: the VM description is editable during the runtime of a VM
    GUI: added proxy settings (bug #2870)
    VBoxManage: changed syntax of the guestcontrol command group, fixed various bugs
    VBoxBalloonCtrl: new service for automatic dynamic adjustment of the balloon size for running VMs
    Settings: machine names and snapshot names are not allowed to be a valid UUID
    Storage: virtual CD/DVD images will be detached if the guest ejects the medium
    Floppy: several bugs have been fixed
    BIOS: disk-related structures are now checksummed correctly
    USB: many fixes for the Windows USB host driver
    NAT: reduced memory footprint
    Serial: announce the serial devices in the ACPI tables to make Windows guests find the virtual hardware (bug #7411)
    VRDP: support for TLS connections
    VRDP: support for multimonitor client configurations with MS RDP client
    3D support: fixed GL_VERSION string for different locales (bug #8916)
    Windows hosts: fixed copy'n'paste in the GUI and for the VM window (bug #4491)
    Guest Additions: improved driver installation on Windows guests
    Guest Additions: fixed high CPU usage while executing guest programs from the host

http://download.virtualbox.org/virtualbox/4.1.0_BETA1/

http://www.virtualbox.org/

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Code: [Auswählen]

Version 4.1.0 Beta 2 (2011-07-08)
This version is a major update. The following major new features were added:

Support for cloning of VMs (bug #5853)
GUI: enhanced wizard for creating new virtual disks

GUI: new wizard for copying virtual disks

GUI: keep the aspect ratio in scale mode (Windows and OSX hosts only; bug #7822)

VMM: raised the memory limit for 64-bit hosts to 1TB

Experimental support for PCI passthrough for Linux hosts, see chapter 9.6, PCI passthrough,
page 143

Windows guests: Experimental WDDM graphics driver

Guest Additions: modules and features now are represented as facilities to have a common
interface for frontends

Networking: new network attachment mode “Generic Driver”, which offers an open plugin

architecture for arbitrary and separately distributable virtual network implementations


New Networking Mode UDP Tunnel: allows to interconnect VMs running on different hosts
easily and transparently, see chapter 6.2, Introduction to networking modes, page 84

Experimental support for SATA hotplug added. Currently only supported for hard disks and
only with VBoxManage.

In addition, the following items were fixed and/or added:

VMM: more SMP timer fixes

VMM: fixed sporadic recompiler crashes with SMP guests

VMM: many small fixes

GUI: when reverting to a snapshot, ask for taking a snapshot of the current state

GUI: added a View menu

GUI: added a setting for the promiscuous mode policy for internal networks, bridged net-
works and host-only networks

GUI: the VM description is editable during the runtime of a VM (bug #1551)

GUI: added proxy settings (bug #2870)

GUI: decrease time before showing the VM configuration dialog

VBoxManage: changed syntax of the guestcontrol command group, fixed various bugs,
removed obsolete options

VBoxBalloonCtrl: new service for automatic dynamic adjustment of the balloon size for
running VMs

Settings: machine names and snapshot names are not allowed to be a valid UUID

Settings: provide better diagnostics if a single medium is used twice in a VM config

Settings: provide better diagnostics for errors in medium create/merge/clone operations,
and fix memory leaks in error cases

Storage: ATA/SATA drives can be marked as non-rotational, i.e. the guest OS will detect
them as a SSD if supported, which can improve performance

Storage: virtual CD/DVD images will be detached if the guest ejects the medium, unless
the drive is marked to handle ejects only on a temporary basis

Storage: the medium UUID can be changed again when attaching a medium for the first
time, which allows using images which are exact duplicates including the UUID

Storage: fixed possible data corruption under certain circumstances with VHD and Parallels
images (bug #9150)

Storage: fixed unnecessary expansion when cloning differential images in VDI format

Storage: fixed detection code to handle empty files for VDI and VMDK format

Floppy: several bugs have been fixed

Floppy: make it possible to unmount a host floppy disk (bug #6651)

BIOS: disk-related structures are now checksummed correctly (bug #8739)

USB: many fixes for the Windows USB host driver

NAT: reduced memory footprint

Networking: workaround for a bug in wireshark when operating directly on a capture file
created by VirtualBox

Serial: announce the serial devices in the ACPI tables to make Windows guests find the
virtual hardware (bug #7411)

VRDP: support for TLS connections

VRDP: support for multimonitor client configurations with MS RDP clients

3D support: fixed GL_VERSION string for different locales (bug #8916)

Webservice: fixed timeout handling with HTTP 1.1 keepalive, and be more robust when
connections fail

VBoxSVC: fixed regression when several clients trigger autostart simultaneously

Main: fixed incorrect handling of the medium location for media which are not file based
(e.g. iSCSI), which resulted in confusing location values in many places

JAX-WS client bindings: fixed resource leak

Sources: fixed USB 2.0 support using extension packs for non-official builds

Windows hosts: fixed copy’n’paste in the GUI and for the VM window (bug #4491)

Windows hosts (64-bit only): enabled removing of all mediums when removing a VM

Windows hosts (64-bit only): enabled live snapshot deletion

Guest Additions: improved driver installation on Windows guests

Guest Additions: fixed high CPU usage while executing guest programs from the host

Solaris Additions: fixed automounting of shared folders (bug #8014)

http://download.virtualbox.org/virtualbox/4.1.0_BETA2/

http://www.virtualbox.org/

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The following items were fixed / added since the VirtualBox 4.1 Beta 2:

    GUI: reworked media type change dialog
    GUI: when cloning or importing a VM, let the user decide if he wants to change the MAC addresses of the network adapters
    GUI: allow to change generic networking properties during runtime
    GUI: allow to configure the port count of SATA controllers (required for SATA hotplugging)
    Cloning: allow linked cloning (see VBoxManage clonevm, GUI support will follow)
    Cloning: rename the disks in the clone
    PCI passthrough: allow to start the VM if the ICH9 chipset is enabled and the extension pack is not available (Beta 2 regression)
    VBoxManage: more convenient configuration of storage controller attachments by automatically determining the port or device parameter when a storage controller has only one port or device per port
    VBoxManage guestcontrol fixes
    Storage: fixed access to CD/DVD images beyond 4GB when using the SATA controller (bug #8592)
    Networking: fixed the problem with segmentation offloading when several VMs are transmitting in parallel
    WDDM fixes
    Mac OS X hosts: fix for non-VT-x mode on Lion
    Solaris hosts: fixed for recent S11 versions

http://download.virtualbox.org/virtualbox/4.1.0_BETA3/

http://www.virtualbox.org/

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

    Mac OS X hosts: Lion fixes
    Solaris hosts: fixed preemption issue with Solaris 11 hosts (builds 166 and above)
    VBoxManage: more convenient configuration of storage controller attachments by automatically determining the port or device parameter when a storage controller has only one port or device per port (bug #9188)
    Storage: fixed possible data corruption under certain circumstances whith VHD and Parallels images (bug #9150)
    Storage: fixed access to CD/DVD images beyond 4GB when using the SATA controller (bug #8592)
    Floppy: make it possible to unmount a host floppy disk (bug #6651)
    Networking: fixed the problem with segmentation offloading when several VMs were transmitting at once
    3D support: fixed GL_VERSION string for different locales (bug #8916)
    Sources: fixed USB 2.0 support using extension packs for non-official builds
    Solaris Additions: fixed automounting of shared folders (bug #8014)


http://www.virtualbox.org/

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Die neue Version 4.1 ist nach Angaben von Oracle ein größeres Update gegenüber Version 4.0. Zu den größten Änderungen gehört die Möglichkeit, virtuelle Maschinen zu klonen, was bisher nur mit Mühe möglich war, da die Software keine virtuellen Laufwerke mit identischen UUIDs akzeptierte. Vollständige Klone können über die GUI und das Programm VBoxManage erzeugt werden, verkettete Klone nur mit VBoxManage.

Die grafische Oberfläche des Produktes wurde durch einen verbesserten Wizard zum Erstellen von neuen virtuellen Laufwerken und einen neuen Wizard zum Kopieren von virtuellen Laufwerken erweitert. 64-Bit-Hostrechner können virtuellen Maschinen nun bis zu 1 TB RAM zuweisen. Für Linux-Hosts wurde Unterstützung für PCI-Passthrough implementiert, allerdings momentan noch experimentell.

Windows-Gastsysteme können nun einen ebenfalls experimentellen WDDM-Grafiktreiber nutzen, der Direct3D sauberer unterstützt und einfacher einzurichten ist. Ebenfalls experimentell ist die Unterstützung für die Hotplug-Funktionalität von SATA-Festplatten. Der Status von Modulen und Features der Gasterweiterungen kann nun von den Frontends separat abgefragt werden.

Die Entwickler implementierten einen neuen Netzwerk-Verbindungstyp »Generic Driver«, der den Zugang zu einer offenen Plugin-Architektur darstellt, über die beliebige, unabhängig entwickelte und vertriebene virtuelle Netze implementiert werden können. Ein weiterer neuer Netzwerk-Verbindungstyp »UDP Tunnel« ermöglicht es, virtuelle Maschinen, die auf unterschiedlichen Hostsystemen laufen, einfach und transparent zu verbinden.

Virtualbox 4.1 ist für viele Linux-Distributionen als Binärpaket verfügbar, darüber hinaus finden sich im Downloadbereich auch Pakete für Mac OS X, Solaris, MS Windows, die Quelltexte, ein SDK sowie zugehörige Anleitungen.

Quelle : www.pro-linux.de

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This is a maintenance release.

The following items were fixed and/or added:

    VMM: fixed 64-bit guests on AMD Fusion CPUs (bug #8824)
    VMM: fixed handling of the sysenter/sysexit machine instructions in 64-bit guests on Intel hosts
    GUI: added linked clone support
    GUI: fixed error check when changing the VM controller settings (4.1.0 regression; bug #9246)
    GUI: fixed the inclusion of additional information (license, vendor, ...) on OVF export
    GUI: when taking a snapshot from the VM selector, don't do a live snapshot
    GUI: fixed immediate crash during start on certain environments due to a library version conflict
    Guest control execution: implemented copying single files from guest to the host (directories and filters not supported yet)
    Guest control execution: limited to serve up to 5 guest processes at a time by default
    Main: return the correct RDP default port fixing settings warnings in the GUI if the remote display was enabled at runtime (bug #9368)
    VBoxSVC: made the path comparison OS independent when images are registered (bug #9303)
    VBoxSVC: several fixes/performance improvements for cloning of VMs
    Snapshots: fixed "Solid-State drive" flag survival on snapshot creation (bug #9379)
    VBoxManage: implemented copyfrom and stat guest control tools to copy files from guest to host and to check for existence of files on the guest
    VBoxManage: fixed extpack install --replace (bug #9308)
    VBoxManage: allow to start multiple VMs with startvm
    VBoxManage: experimental support for SATA CD/DVD hotplugging
    Mouse support: fixed an off-by-one pointer position error affecting Windows guests (bugs #7566, #9321)
    VRDP: fixed a case when the screen was not redrawn correctly (bug #9242)
    NAT: changed TCP connection establishment according to Winsock API requirements (Windows hosts only; bug #8919)
    USB: fixed device recognition issues (bugs #9299) and fixed several device capturing issues (Windows hosts; bug #9299)
    USB: fixed issues with remote filters being applied to local USB devices
    OVA: fixed import of renamed OVA files (bug #9033)
    Windows host: fixed icon for .VDI files (bug #9393)
    Solaris hosts: fixed a bug preventing parallel usage of multiple host NICs with Crossbow based bridged networking
    Linux hosts: fixed random kernel panics on host suspend / shutdown (4.1.0 regression; bug #9305)
    Guest Additions: keep logged in user count in out-of-memory situations and warn about it
    Solaris Additions: fixed shared folders due to missing symbols in the vboxfs module (4.0.12 / 4.1.0 regression; bug #9264)
    Windows Additions: fixed file truncation on a shared folder with some applications (bugs #9276, #9315)
    Windows Additions: fixed shared folder issues with antivirus software and 64 bit Windows guests (bug #9318)
    Windows Vista and 7 guests: WDDM driver fixes and performance enhancements, fixed WinSAT crashes (#9267)
    Linux Additions: fixed llseek() for Linux kernels 2.6.37 and above

Download : http://download.virtualbox.org/virtualbox/4.1.2/

http://www.virtualbox.org/

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VirtualBox 4.1.4 (released 2011-10-03)

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

    VMM: fixed PAE guests running on 32-bit hosts (4.0 regression; bug #9458)
    VMM: fixed INVALID_PARAMETER guru meditation caused by insufficient memory conditions (4.1.0 regression; bug #9240)
    VMM: fixed clobbered CPU registers during stos/lods/ins/outs emulation under rare circumstances
    VMM: another fix for 64-bit guests on recent AMD CPUs
    GUI: warn the user if he uses an outdated extension pack and allow to download and upgrade in that case (bug #8025)
    GUI: fixed spurious LCtrl key events on some Windows hosts (4.0.6 regression; bug #373)
    VBoxManage: another fix for extpack install --replace (bug #9308)
    VBoxManage: allow to specify the UUID of the target image in convertfromraw
    VRDP: fixed a rare crash when two or more clients connect to the server (bug #9503)
    VRDP: fixed a case when a client was not resized correctly (bug #9242)
    USB: make device capturing work on Windows hosts with usbhub class filter drivers installed (bug #9298); bugfixes for Windows host USB support
    VHD: fixed reads crossing block boundaries (bug #8532)
    VMDK: fixed progress indicator when creating split VMDK images
    Floppy: fixed medium size detection for physical mediums (Windows hosts only)
    Main: fixed VM initialization if a shared folder does not exist (bug #7941)
    Main: fixed possible deadlock between hard disk enumeration and resetting of immutable disks (bug #9549)
    Main: fixed not detaching of virtual storage after a snapshot restore operation (bug #8296)
    Main: always reset modified state after restoring a snapshot (bug #9387)
    Main: fixed writing of changed VM settings to disk when using snapshots (bug #8932)
    Main: fixed taking screen shots (e.g. the preview window) for headless VMs if the Guest Additions are active
    Virtio-net: fixed the problem with UDP packets exceeding MTU (bug #9370)
    3D Support: fixed incorrect rendering and possible crashes when switching to/from fullscreen with enabled 2D acceleration
    3D Support: fixed compiz under ubuntu 9.10
    Guest control: Miscellaneous small bugfixes
    Linux / Solaris hosts: don't use hard links in packages (4.1.2 regression; bug #9441)
    Mac OS X hosts: fix installation issues when installed as root (bug #1578)
    Mac OS X hosts: fixed packet capture issues with vboxnetX host-only interfaces (bug #8076)
    Solaris hosts: fixed incoming multicast packets for Crossbow based bridged networking (bug #9532)
    Solaris hosts: fixed starting EFI guests due to missing EFI ROM files (bug #9535)
    Windows hosts installer: fixed ADDLOCAL usage on command line (4.1.0 regression; bug #9488)
    Windows hosts installer: fixed dangling shortcut to the .chm help file (bug #9646)
    Windows hosts installer: try to fix installation error 2869 which appeared under certain circumstances (bug #9664)
    Windows hosts: VBoxHeadless should never open a separate console window (bug #3549)
    Guest Additions: fixed hang while waiting for guest execution output (4.1.2 regression; bug #9446)
    Linux Additions: add support for X.Org Server 1.11 (bug #9519)
    Linux Additions: suppress an incorrect error message and allow a shared folder to be mounted in multiple places (bug #9627)
    Linux Additions: start VBoxService correctly on openSUSE 12.1 (bug #6229)
    Linux Additions: properly finish the installation even if the compilation of the DRM module fails (which is not fatal)
    Solaris Additions: fixed memory leaks and panics while mounting (from console) and unmounting shared folders.
    Windows Additions: fixed swapped mouse cursor hotspot coordinates (4.1.0 regression; bug #9447)
    Windows Additions: fixed PAGE_FAULT_IN_NONPAGED_AREA BSOD in VBoxDisp.dll when running SnippingTool (bug #9508)
    Windows Additions: make image viewer work correctly with Aero enabled (Vista and Windows 7)
    Windows Additions: fixed incorrect window border blurs under Aero with ATI cards (Vista and Windows 7)
    Windows Additions: fixed incorrect rendering when moving 3D applications outside guest desktop and back under Aero (Vista and Windows 7)
    Windows Additions: fixed guest hangs when switching back from fullscreen text mode apps (bug #9636)

http://www.virtualbox.org/

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Die Qualität des Kernel-Treibers von VirtualBox, einer von Oracle übernommenen Virtualisierungs-Software, ist in die Kritik einiger Kernel-Entwickler geraten.

VirtualBox ist eine von der deutschen Firma Innotek entwickelte virtuelle Maschine für 32-Bit- und 64-Bit-x86-Systeme. Durch die Übernahme von Sun, das Innotek gekauft hatte, gelangte VirtualBox an Oracle, wo es wie schon bei Sun rasch weiterentwickelt wird. Zur Beschleunigung der Ausführung von virtuellen Maschinen setzt VirtualBox eigene Linux-Kernel-Treiber ein.

Diese Treiber wurden jetzt Gegenstand der Kritik, als der für Red Hat arbeitende Kernel-Entwickler Dave Jones einen Patch vorschlug, der den Kernel automatisch mit dem Taint-Flag markiert, wenn das vboxdrv-Modul geladen wird. Dieses Flag sagt den Kernel-Entwicklern, dass sie Fehlerberichte für solch einen Kernel gar nicht weiter zu untersuchen brauchen, da der fragliche Kernel proprietäre oder experimentelle Module enthält. Laut Jones liegen Red Hat und Fedora so viele Fehlerberichte zum VirtualBox-Treiber vor, dass es lästig wird. Diese Fehler deuten auf Speicherkorruption hin, wie sie typischerweise durch fehlerhaften Umgang mit Zeigern oder Pufferüberläufe verursacht wird.

Jones will infolgedessen den Treiber, der von Oracle außerhalb des Kernels entwickelt wird, so behandeln wie Treiber im Staging-Bereich des Kernels; das entsprechende Flag heißt TAINT_CRAP. Andere Kernel-Entwickler, darunter Greg Kroah-Hartman, unterstützen die Idee prinzipiell, allerdings gibt es noch unterschiedliche Ansichten, wie das Modul genau markiert werden soll.

Die Initiative könnte aber auch als Mahnung an die Entwickler des Treibers dienen. Dr.-Ing. Frank Mehnert vom VirtualBox-Team hat sich bereits zu Wort gemeldet und um nähere Informationen gebeten. Nachdem er kurz die von Jones angegebenen Hinweise betrachtet hatte, meldete er sich zurück mit der Ansicht, dass viele der vermeintlichen Fehlerberichte »ganz klar« nicht vom VirtualBox-Treiber verursacht sein können. Der Treiber sei in diesen Fällen lediglich geladen gewesen. Mehnert will der Sache weiter nachgehen. Das bisher gute Verhältnis zu den Kernel-Entwicklern soll durch die Sache nicht getrübt werden und die Zusammenarbeit mit den Kernel-Entwicklern weiterhin gut bleiben oder verbessert werden. Eine Aufnahme des Treibers in den offiziellen Kernel scheint dagegen nicht geplant zu sein, da sich das Team bei Oracle Änderungen der Programmierschnittstelle jederzeit vorbehalten will.

Quelle : www.pro-linux.de

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

    VMM: fixed 64bit guests on AMD Fusion CPUs (bug #8824)
    VMM: fixed handling of the sysenter/sysexit machine instructions in 64-bit guests on Intel hosts
    GUI: fixed the inclusion of additional information (license, vendor, ...) on OVF export
    GUI: when taking a snapshot from the VM selector, don't do a live snapshot
    GUI: fixed spurious LCtrl key events on some Windows hosts (4.0.6 regression; bug #373)
    VBoxManage: fixed extpack install --replace
    VRDP: fixed a rare screen corruption
    E1000: fixed rare Windows 7 guest hangs, either at boot time or when reconfiguring the network card in unusual setups (bug #6223)
    Mouse support: fixed an off-by-one pointer position error affecting Windows guests (bugs #7566, #9321)
    NAT: changed TCP connection establishment according to Winsock API requirements (Windows hosts only; bug #8919)
    VHD: fixed reads crossing block boundaries (bug #8532)
    VMDK: fixed progress indicator when creating split VMDK images
    Floppy: fixed medium size detection for physical mediums (Windows hosts only)
    VBoxSVC: made the path comparison OS independent when images are registered (bug #9303)
    Main: return the correct RDP default port fixing settings warnings in the GUI if the remote display was enabled at runtime (bug #9368)
    Main: fix VM initialization if a shared folder does not exist (bug #7941)
    Main: fixed taking screen shots (e.g. the preview window) for headless VMs if the Guest Additions are active
    Main: fixed possible deadlock between hard disk enumeration and the resetting of immutable disks (bug #9549)
    OVA: fixed import of renamed OVA files (bug #9033)
    Virtio-net: fixed the problem with UDP packets exceeding MTU (bug #9370)
    Solaris hosts: fixed starting EFI guests due to missing EFI ROM files (bug #9535)
    Mac OS X hosts: fix installation issues when installed as root (bug #1578)
    Windows Additions: fixed file truncation on a shared folder with some applications (bugs #9276, #9315)
    Linux Additions: suppress an incorrect error message and allow a shared folder to be mounted in multiple places (bug #9627)
    Linux Additions: add support for X.Org Server 1.11 (bug #9519)
    Linux Additions: fixed llseek for Linux kernels 2.6.37 and above
    Linux Additions: start VBoxService correctly on openSUSE 12.1 (bug #6229)
    Linux Additions: properly finish the installation even if the compilation of the DRM module fails (which is not fatal)

http://www.virtualbox.org/

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VirtualBox 4.1.6 (released 2011-11-04)

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

    VRDP: fixed screen corruption
    NAT: the interface stopped working after a lot of failed ICMP requests (bug #9371)
    E1000: fixed rare Windows 7 guest hangs, either at boot time or when reconfiguring the network card in unusual setups (bug #6223)
    ATA: fixed a possible crash during ATAPI passthrough with certain guests
    ATA: improved compatibility with ancient Linux kernels
    Main: fixed incorrect framebuffer information after leaving the fullscreen mode with X11 guests, this lead to a scrambled preview window in the GUI for example
    Mac OS X hosts: fixed the problem with duplicate packets when bridged to a wireless interface (bug #9648)
    Linux hosts: fix for 3D support on Fedora 15 (bug #9799)
    Linux hosts: don't call del_timer_sync from an interrupt context (Fedora bug report 746331)
    Windows Vista and 7 guests: more WDDM fixes
    Linux Additions: fixed kernel module compilation failure on Redhat Enterprise Linux 4 (bug #9709)
    Linux Additions: install the DRI driver correctly on Ubuntu 11.10 guests
    Solaris Additions: added read-only mmap support for shared folders
    Solaris Additions: added directory, file mode and mask options for shared folders
    Windows Additions: implemented faster detection of logged-in guest users and stale sessions
    X.Org Additions: fixed graphical corruption when switching to a virtual terminal (bug #9490)

http://www.virtualbox.org/

[SiLæncer]

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

-VMM: fixed VERR_MAP_FAILED during savestate under certain circumstances
-GUI: stop updating the VM status icons when the VM is paused (bug #8368)
-VBoxManage: fixed wrong return code after startvm (bug #9642)
-BIOS: fixed hang at launch of DOS applications generated by Clipper 5.3 (no
ware virtualization may be required)
-USB: fixed OS/2 boot hang when using recent USB drivers
-NAT: increase maximum number of parallel connections making connectio
forwarding more robust (#8471)
-Metrics: fixed potential problem with invalid access in guest metrics collecti
destruction
-Main: don’t crash if a medium is ejected twice (bug #9922)
-VBoxSVC: fixed crash under rare circumstances (e.g. client crash)
-VRDP: fixed screen freeze (bug #9620)
-OVF/OVA: fixed broken disk images on import under rare circumstances
-OVF/OVA: better error message when importing corrupted appliances
-VMDK/VHD: fixed a possible corruption with host cache disabled when usi
under rare circumstances (bug #9749)
-3D Support: Fixed fullscreen mode issues for ATI graphics (bug #9775), Win
-Player rendering for XPDM-based Direct3D support (bug# 8341). Multiple fi
and WDDM - based 3D support for Windows Guests and for 3D support in ge
-Linux hosts: fixes for Fedoras Linux 2.6.41 (bug #9948)
-Linux hosts/guests: fixes for Linux 3.2 (bug #9743)
-Solaris Additions: various shared folder fixes (bugs #9856, #9862, #9917)
-Windows Additions: various fixes for Direct3D support (un)installation, add
of missing or wrong Direct3D system files

http://download.virtualbox.org/virtualbox/4.1.8/

[SiLæncer]

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

    VRDP: fixed screen corruption
    VRDP: fixed screen freeze
    ATA: fixed a possible crash during ATAPI passthrough with certain guests
    NAT: the interface stopped working after a lot of failed ICMP requests (bug #9371)
    Metrics: fixed potential problem with invalid access in guest metrics collection upon VM destruction
    Main: fixed incorrect framebuffer information after leaving the fullscreen mode with X11 guests, this lead to a scrambled preview window in the GUI for example
    VBoxSVC: fixed crash under rare circumstances (e.g. client crash)
    VMDK/VHD: fixed a possible corruption with host cache disabled when using snapshots under rare circumstances (bug #9749)
    OVF/OVA: fixed broken disk images on import under rare circumstances
    Mac OS X hosts: fixed the problem with duplicate packets when bridged to wireless interface (bug #9648)
    Windows Additions: implemented faster detection of logged-in guest users and stale sessions
    Linux guests: fixes for Linux 3.2

http://www.virtualbox.org/

[SiLæncer]

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

    GUI: if 3D support on the host is not available for some reason, do not only disable this VM setting but also uncheck the checkbox
    VMM: fixed a potential problem causing to schedule interrupts during SYSEXIT right after STI
    VMM: fixed a potential guest memory corruption issue with page fusion
    VMM: adjusted the module matching algorithm for page fusion a little, generally resulting in slightly more shared pages
    Main: host interfaces no longer have "defaults" for IP address and network mask attributes
    Main: don't depend on a password for certain guest control operations (bug #10030)
    3D Support: fixed Windows XP hosts support (4.1.8 regression; bugs #10071 and #10088)
    3D Support: rendering fixes for Linux hosts with NVIDIA graphics
    3D Support: fixed saved state issues (4.1.8 regression; bug #10126)
    3D Support: WDDM driver: fixed powershell_ise crashes (bug #10167), make WPF-based apps work with Aero enabled, fixed additional possible WinSAT crashes
    VRDP: fixed remote clipboard compatibility issues with some clients
    Storage: fixed a possible data corruption when compacting VDI or VHD images with snapshots (32-bit hosts only)
    iSCSI: fixed crash when using incorrect credentials when authenticating with a LIO target (bug #10173)
    Serial: don't abort in host mode under rare error conditions (non-Windows hosts only)
    SDK: actually ship current C bindings
    SDK: fixed the Java glue code for JDK 1.7.0 (bug #9848)
    SDK: added Python example
    Metrics: make metrics collection more robust regarding blocked VMs
    Web service: added SSL/TLS support
    VBoxShell: fixed Guest Additions information lookup
    Solaris installer: fixed dependency checking while installing VirtualBox in a zone
    Linux hosts/guests: Linux 3.3-rc1 compile fixes
    Solaris hosts: fixed debug kernel panics while opening module CTF data (bug #9591)
    Mac OS X hosts: fixed Python support on Lion
    Linux Additions: make 3D passthrough work on OL/RHEL 6.2 (bug #10010)
    Linux Additions: fixed missing implementation when copying shared folder data through kernel high memory (bug #9878)
    Linux Additions: make sure all data is written when closing a memory mapped file on a shared folder
    Linux Additions: added support for X.Org Server 1.12
    Solaris Additions: fixed guest kernel driver to load properly on guest reboot (4.1.8 regression; bug #10113)
    Solaris Additions: fixed missing 64-bit OpenGL library VBoxOGL.so (bug #10151)
    Solaris Additions: fixed VBoxService import and start for Solaris 11 guests.
    Windows Additions: some Windows 8 adaptions
    Windows Additions: several fixes for shared folders (bug #9753)
    Guest control: miscellaneous bugfixes

http://www.virtualbox.org/