Hi Giovanni,

Are you suggesting to enable or disable the IO APIC setting?

I have been running with IO APIC enabled, and I experience the lock-up
problem when more than one CPU is enabled, but not when only one is
enabled.

As you mention, in VirtualBox version 3.0.2 the IO APIC is enabled by
default.  In response to your message I tried to disable it.  But
apparently VirtualBox disallows this.  Every time I uncheck the box to
disable it, the next time I enter that page the box is checked again.
According to the documentation, the IO APIC mus be enabled for 64-bit
guests or if more than one CPU is enabled.  Apparently the software
disallows what it considers to be an invalid configuration.

Are you saying that your system used to also lock up occasionally and
after you made a change now it is not?

Thanks.

--ken

On Sun, 2009-08-02 at 08:36 +0000, Giovanni Toraldo wrote:

> On Sat, Aug 1, 2009 at 17:08, Ken Lauffenburger<[email protected]> wrote:
> > Hello,
> >
> > Anyone have any thoughts on this?
> >
> > Thanks.
> >
> > --ken
> >
> > On Thu, 2009-07-23 at 15:51 -0500, Ken Lauffenburger wrote:
> >
> > Host machine: MacBook Pro running MACOS 10.5.7
> > Guest:  Gentoo Linux x86_64 2.6.27-gentoo-r8 (64-bit)
> 
> 
> I have experienced the same problem with the same environment of Ken.
> I did many tests for recovering my guest Lenny on MacOs host, and the
> trick appeared to enable the IO APIC (that in 2.x was disabled by
> default, now on 3.x enabled by default).
> 
> Try with it.
> 
> 

Ken Lauffenburger

Design Engineer
730 E Park Blvd, Ste 208
Plano TX 75074-8850

+1 214 796 4134 mobile
[email protected]

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