Windows XP on Win7 host excessive CPU usage

Discussions related to using VirtualBox on Windows hosts.
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ServerAlex
Posts: 1
Joined: 2. Oct 2009, 23:40
Primary OS: MS Windows 7
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Windows, Linux

Windows XP on Win7 host excessive CPU usage

Post by ServerAlex »

Hello everyone,
I installed Windows XP on a VBox 3.0.6 on Win7 host. Setting was ACPI/APIC on, PAE on, 2 cores, AMD-V on.

After the installer finished successfully it tried to boot the system, which didn't really work. The host system is hanging, everything very very slow. VBox CPU usage is 100%. After the guest has finally booted (after some minutes) and actually doesn't have any more CPU usage (guest task monitor), the VBox process still has 100% usage. Even my mouse on the host OS is lagging. I have no idea whats wrong. Single core works, when I enable 2 cores this happens.
CPU is a Turion X2.

Any ideas?
Perryg
Site Moderator
Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: Windows XP on Win7 host excessive CPU usage

Post by Perryg »

Known issue. From what I hear there is supposed to be a fix in the next maintenance release. Select 1 core for now.
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