Ticket #7208 (closed defect: fixed)

Opened 11 years ago

Last modified 9 years ago

100 % cpu usage in 3.2.6

Reported by: now Owned by:
Component: VMM Version: VirtualBox 3.2.6
Keywords: Cc:
Guest type: Windows Host type: Linux


With a Windows XP guest system VB uses 100% of one cpu although the guest system is idle. This happens on a 64-bit dual core machine. The host is Ubuntu 10.04, all patches applied. Is there any debug output that I should provide?


VBox.log Download (45.8 KB) - added by now 11 years ago.

Change History

comment:1 in reply to: ↑ description Changed 11 years ago by mhanor

Replying to now:

Is there any debug output that I should provide?

yes, attach the VM session log

Changed 11 years ago by now


comment:2 Changed 11 years ago by now

Log see above. One interesting observation: When the Windows guest started the CPU usage was relative low. Then one process - dont' know which one - on the guest used a lot of CPU for a minute or two. When this process in the guest ended the guest was more or less idle. On the other side: top showed that the CPU usage of VirtualBox was roughly 100 % - permanent - from this time on.

comment:3 Changed 10 years ago by shiftyphil

I have the same problem here (XP Guest / Ubuntu Host, 64bit, Core 2 Duo) but I have a workaround - saving and resuming the VM brings it back to normal.

It seems something happening during the boot process sends VirtualBox off the rails

comment:4 Changed 10 years ago by frank

  • Component changed from other to VMM

comment:5 Changed 9 years ago by frank

  • Status changed from new to closed
  • Resolution set to fixed

Please reopen if still relevant with VBox 4.1.4.

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