VirtualBox

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Ticket Resolution Summary Owner Reporter
#7833 duplicate Guru Meditation on WinXP host, Kubuntu Guest GusFernandez
Description

I was running VirtualBox 3.2.12, compiling Linux code on a Kubuntu Guest while doing other things on the host. Kubuntu was in seamless mode and the console was minimized (only the Kubuntu taskbar was visible).

I got a Guru Meditation alert. The VBox.log is attached.

#7834 duplicate How do I get VirtualBox to run with more than one CPU core on my Dell Desktop PC GusFernandez
Description

I'm trying to use Sun VirtualBox on my Dell Optiplex 755 Desktop PC running Windows XP SP3 on an Intel Core 2 Duo E8400 3.00GHz processor and the latest version of VirtualBox (3.2.12) to run a Linux Kubunto Guest OS. This works very well as long as I only use only one of the two processor cores. If I try to enable the second core, I must also enable VT-X virtualization. However, in this case I always get an error Unknown error creating VM (VERR_VMX_MSR_LOCKED_OR_DISABLED) Result Code E_FAIL (0x0004005) Comonent: Console Interface: IConsole {6375231a-c17c-464b-92cb-ae9e128d71c3} I checked the system BIOS and virtualization as well as all other processor features are enabled, and there are no supervisor password locks. I successfully updated the BIOS from version A11 to the latest version A17 using a tool that I downloaded from the DELL website specifically for the Optiplex 755, but this did not help. I checked other websites regarding the VERR_VMX_MSR_LOCKED_OR_DISABLED message and I only get vague mentions of BIOS bugs on Dell computers. The same procedure works well on my Lenovo Laptop. I'm sending this same support request to DELL as well.

#9413 invalid VERR_VD_IMAGE_READ_ONLY error GusFernandez
Description

Today, I upgraded to VirtualBox 4.1.0 under Windows 7 Pro SP1. I created a virtual image from an existing WinXP hard disk using the SysInternals disk2vhd 1.63 utility runninbg on the Win7 machine. I created a new Windows XP VM around the new VHD file. However, whenever I launch the new VM, I get

Failed to open a session for the virtual machine xxxxxx Failed to open image c:\xxxxxx.VHD for writing do to wrong permission (VERR_VD_IMAGE_READ_ONLY)

Result Code: E_FAIL (0x80004005) Component: Console Interface: IConsole {1968b7d3-e3bf-4ceb-99e0-cb7c913317bb}

However, the image is NOT read only and I have full permissions for it.

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