Re: VirtualBox: Eating up 100% CPU, freezing Windows 7

On Fri, Aug 03, 2012 at 07:44:27AM +0200, Bernhard Fr?hlich wrote:
> On Fr.,??  3. Aug. 2012 06:18:33 CEST, Kevin Oberman <kob6558_at_gmail.com> wrote:
> 
> > On Thu, Aug 2, 2012 at 12:54 AM, Hartmann, O.
> > <ohartman_at_zedat.fu-berlin.de> wrote:
> > > I discover that when running Windows 7 in a VirtualBox On FreeBSD 10
> > > (r238968: Wed Aug 1 14:26:40 CEST 2012), VBox is most recent from the
> > > ports, that the VirtualBox eats up 100% CPU time and freezes Windows 7
> > > for more than a minute. For a minute or so, I can work, then, the
> > > freeze occurs again.
> > > 
> > > I can't see this behaviour with a Ubuntu Guest on the same box. Is
> > > there Windows 7 specifica to be aware of?
> > 
> > I am seeing the same thing. Also Win7 guest with Windows showing idle
> > process at 99%, but my system is showing VB at 100%. The VM is only
> > running a single CPU, so FreeBSD is still running OK, but the Win7
> > system seems to freeze up periodically.
> > 
> > 9.1-PRERELEASE on amd64 updated yesterday (though it has been this way
> > since VB was updated to 4.1.18. Guest additions for 4.1.18
> > installed.All ports current. I'm thinking of backing off to 4.1.16.
> 
> Can someone confirm that this is a regression in 4.1.18? Then I could talk to upstream and see if I can get that adressed.

Could it be a case of kernel and virtualbox modules out of sync ?
I do see occasional crashes with virtualbox in both the host and guest,
but a reinstall of in-sync kernel and modules usually fixes them.

cheers
luigi