VirtualBox

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Ticket Resolution Summary Owner Reporter
#7594 duplicate 100% CPU usage in windows XP guest converted from vmware on Ubuntu Lucid host Andrew
Description

I am trying out virtualbox with my vmplayer VM (I uninstalled vmware tools before trying in virtualbox). I am using the repository from virtualbox.org to install 3.2 (not the OSE version) on Ubuntu Lucid 10.04. I pointed it to my vmdk file from vmware that use a native hard drive (/dev/sdb), not a virtual disk.

I turned on "Enable IO APIC" and left most of everything else unchanged, except for adding a few shared folders and changed the network to bridged on eth0.

I re-activated the windows OS.

The CPU in windows is a consistent 100% with no changes at all. In the windows task manager, there have been a 3 lower CPU spikes down to ~60% but instantly went back to 100%. The OS is even slow to start, so it does not seem to be a running process. I tried to disable my firewall (norton) and the windows defender with no help. I tried running a dummy virtual box (suggested by hits found via google) with no luck either.

The VM is pretty much useless as it is extremely slow to run anything. In task manager I see taskmgr.exe (ironic that the task manager is eating the CPU isn't it, but if I shut down task manager, the computer is still slow and the host reports the CPU still high) and System taking up the CPU.

#3557 obsolete 100% CPU usage on Linux host with single Linux guest Anatoli Sakhnik
Description

Running a single RHEL4.6 on Ubuntu 8.10 causes 100% CPU load on idle. However, launching another instance shows normal CPU utilization, near 10% on idle.

#15891 obsolete 100% CPU usage with VBoxGuestAdditions_5.1.5-110520 -> see #16075 nopaste
Description

I installed VBoxGuestAdditions_5.1.5-110520.

Immediately after startup I hear the fan of my laptop running unusually so I check CPU usage.

top gives me 97% usage for VBoxClient and the process points to

/usr/bin/VBoxClient --draganddrop
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