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Ticket Resolution Summary Owner Reporter
#4447 fixed CPU 100% ubuntu server 6.06 LTS zeis
Description

CPU 100% ubuntu server 6.06 LTS

S.O. HOST: windows server 2003

#2349 duplicate CPU Core maxed out with Vista 64 host bradleysmith
Description

I'm running on Vista 64 and when running either a Vista 32 or XP Guest OS the process VBoxSVC.EXE maxes out one of my cores and makes my host machine too slow to use.

My host machine is a 3GHz Dual Core machine with 3 GB of RAM. I give the VMs 1 Gig of RAM and only run one at a time but very soon after running them the host becomes unusable.

#7522 obsolete CPU Hotplug / Hot-unplug is unstable Technologov
Description

Host: Windows XP, Core 2 Q6600, VBox 3.2.8.
Guest: openSUSE 11.3 64-bit (and other Linuxes)

I did:

VBoxManage modifyvm <vmname> --cpuhotplug on
VBoxManage modifyvm <vmname> --cpus 2

after VM booted...

Several time re-plugged CPU:

VBoxManage controlvm <vmname> plugcpu 1
VBoxManage controlvm <vmname> unplugcpu 1

From inside guest: (openSUSE 11.3 64-bit)

linux-0gkn:~ # dmesg | tail
[  870.449212] microcode: CPU0 update to revision 0xb6 failed
[  870.488455] microcode: CPU1 update to revision 0xb6 failed
[  870.515200] microcode: CPU0 update to revision 0xb6 failed
[  870.537351] microcode: CPU1 update to revision 0xb6 failed
[  870.557087] microcode: CPU0 update to revision 0xb6 failed
[  870.584368] microcode: CPU1 update to revision 0xb6 failed
[  873.845725] CPU 1 is now offline
[  873.845725] SMP alternatives: switching to UP code
[  884.070333] VBoxService[1412]: segfault at 2800568e70
    ip 0000000000409235 sp 00007f644d05cb80 error 4
    in VBoxService[400000+69000]
[  884.071618] ACPI: Device don't exist, dropping EJECT

Similar, but different problems were seen on many other guest OSes: RHEL6 (BETA1), Fedora12, openSUSE 11.0/11.1/11.2 (32+64bit), ...

For now, only under Fedora 13 this feature magically worked. VBox log attached.

--

-"Technologov", 28.9.2010

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