VirtualBox

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Ticket Resolution Summary Owner Reporter
#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.

#892 obsolete [SUGGEST] Integration with Xming Diego
Description

It will be great if you integrate Xming inside VirtualBox, and not only to comunicate with VirtualPCs, also with real computers or VirtualPCs in other separated servers. Features are almost the same, so one program to do both jobs will be great.

Cheers

#896 obsolete Error "hard disk with two children" after disk full during "discard current snapshot" Frans Pop
Description

I had a fairly long series of snapshots without noticing that I was running out of disk space. I wanted to get back to an earlier snapshot, so selected "discard current snapshot and state".

After a while I got an error that the operation failed because lack of diskspace. After freeing up some space I tried again but the discard would not start with an error message saying that a disk had two children (sorry, don't have exact message anymore).

The attached screenshot shows the situation in the disk manager.

I managed to recover by deleting one of the children from ~/.VirtualBox/VirtualBox.xml (and modifying a reference to that snapshot in the machine's XML file). After that deleting the snapshots worked again.

I'm running the Debian virtualbox-ose 1.5.2 package.

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