VirtualBox

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Ticket Resolution Summary Owner Reporter
#875 fixed virtual machine could not be startet e.fuhr
Description

virtual machine could not be startet: I have to virtual machines: both did at once fail to start with the same message

#876 duplicate compiz widget layer obscured sparkus
Description

running compiz in ubuntu 7.10, and when running a vm in both seamless and full-screen modes, the compiz widget layer is obscured by the vm. (though in seamless mode, you can see the widgets beneath the vm app windows).

getting this working right would significantly improve the "seamlessness".

#877 obsolete 100% CPU load with Windows XP guest and iTunesHelper Nil
Description

Host: Ubuntu Gutsy i386 Guest: Windows XP Professional SP2

After installing iTunes 7.5 from Apple's website I have noticed that VirtualBox uses 100% of the CPU. This is a dual core system (Core Duo T2500 @ 2.0 GHz) so actually only one core at once is at 100%, but I suppose that it would use almost 100% on a single core machine. This obviously makes the machine heat up too. Since I'm new to VirtualBox and I've used it for less than a week, I was unsure about if the VM always used the 100% of the CPU or not, so I first tried to disable tickless (nohz=off) on the host and ACPI on the guest too but that didn't help. Then I noticed that if I logged off the session in the guest CPU usage dropped, so I deduced it should be a Windows process or service what was causing the problem and found it to be iTunesHelper, however in the Windows Task Manager CPU usage for iTunesHelper was around 0-2% as expected so I understand it is a virtual machine issue. After disabling iTunesHelper in the registry so it doesn't load at logon CPU usage was normal again. Then I switched back to ACPI and re-enabled tickless and everything is fine now with iTunesHelper disabled.

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