Opened 14 years ago
Closed 14 years ago
#6296 closed defect (invalid)
VM consumes 100% of one CPU even if guest bootloader only is started
| Reported by: | IlyaVP | Owned by: | |
|---|---|---|---|
| Component: | other | Version: | VirtualBox 3.1.4 |
| Keywords: | CPU usage | Cc: | |
| Guest type: | other | Host type: | Windows |
Description
On my Windows Vista 32 VM starts consuming 100% of one CPU core (Intel dual core proc) as soon as guest is started even if I breaks guest booting in bootloader (GRUB). I tried with different OS types selection, old (created in previous versios) and new virtual machines, disabled audio, USB and network - all without result. As it is not guest OS but bootloader specific, I filed it as separated bug.
Attachments (6)
Change History (11)
by , 14 years ago
| Attachment: | VBox.log.1 added |
|---|
by , 14 years ago
| Attachment: | VBox.log.2.1 added |
|---|
by , 14 years ago
| Attachment: | vboxCPUusage.jpg added |
|---|
by , 14 years ago
comment:1 by , 14 years ago
VBox.log.1 was collected with just created VM with all default parameters. VBox.log.2.1 is a copy, added by error. VBox.log was collected after the following changes
- VBoxManage.exe modifyvm test --hwvirtex off
- VBoxManage.exe modifyvm test --nestedpaging off
- VBoxManage.exe modifyvm test --vtxvpid off
- disable audio, USB, network
comment:2 by , 14 years ago
Just formatted previos comment
VBox.log.1 was collected with just created VM with all default parameters.
VBox.log.2.1 is a copy, added by error.
VBox.log was collected after the following changes:
- VBoxManage.exe modifyvm test --hwvirtex off
- VBoxManage.exe modifyvm test --nestedpaging off
- VBoxManage.exe modifyvm test --vtxvpid off
- disable audio, USB, network
comment:3 by , 14 years ago
Further tests show that after guest system boot CPU consuming became low but it increased to 100% after host system hibernating.
comment:4 by , 14 years ago
I have the same issue with virtualbox 3.1.4 on ubuntu 8.04 and 10.04. It start to load cpu up to 100-120% and then in 3-5 minutes xorg kicks me off to session login window. Everything worked better with 2x versions. Now I can't install windows XP, it crashed to blue screen. I'm using Athlon 5600+ windsor
message log attached.
by , 14 years ago
| Attachment: | vb_machine_log.txt added |
|---|
vb log for machine win xp sp3 (lighteight version Experience 9)
comment:5 by , 14 years ago
| Resolution: | → invalid |
|---|---|
| Status: | new → closed |
So far I saw absolutely no evidence that this is a VirtualBox bug - grub uses busy waiting since the BIOS functions have no support for waiting for some event, and thus VirtualBox correctly translates into a completely busy CPU.
screenshot