Custom Query (16363 matches)
Results (220 - 222 of 16363)
| Ticket | Resolution | Summary | Owner | Reporter |
|---|---|---|---|---|
| #14896 | obsolete | 100% CPU Usage, unable to boot VMs on kernel 3.19 | ||
| Description |
I'm on Ubuntu 14.04 on kernel 3.19 as part of the Vivid HWE stack. I'm on the latest 5.0 release from your repository. Regardless of the operating system, I've found a really nasty bug that keeps recurring. After installing an operating system, as soon as I reboot, the CPU locks to 100% and the machine never boots. I've demonstrated this with Windows 7 guests and Linux guests. I basically cannot use VirtualBox for this reason and it's incredibly annoying. Happy to provide debugging information. |
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| #3537 | fixed | 100% CPU load of events kernel thread triggered by virtualbox | ||
| Description |
After starting virtualbox on a dual core machine, one of the events kernel threads (nicelevel: -5 !) gets 100% CPU all the time, i.e. occupying one core completely. Further observations:
This is on Ubuntu Intrepid, version: 2.1.4-42893_Ubuntu_intrepid . |
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| #877 | obsolete | 100% CPU load with Windows XP guest and iTunesHelper | ||
| 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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