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) 
> 
> The MacBook Pro has a Core 2 Duo processor (two processor cores).
> Before I recently upgraded to version 3.0.2 from version 2.2.4 I was
> only able to run a single core because Virtualbox didn't support SMP
> operation on Linux guests.  Now I am able to run both cores and I am
> seeing close to twice the performance.
> 
> However, occasionally the VM will lock up and the only way I have been
> able to recover is to reboot the VM.  Whenever the lock up happens the
> VirtualBox process on the host processor jumps up to upwards of 190%
> (both cores fully loaded).  What I mean by "lock up" is that the
> guest's X window interface freezes completely, except for the mouse.
> So far I haven't determined if guest kernel is actually locked up or
> just the X server.  The incidence of the lock up condition is about
> two to five times a day.
> 
> As a test, for the last two days I have been running with VirtualBox
> set to a single processor core.  There have been no lock ups.  Prior
> to this I briefly tried turning off the PAE/NX option with both cores
> enabled, but I experienced a lock up with that setting also.
> 
> I have the high-resolution timer configured to OFF in my guest kernel
> and I have the event timer set to 250ms, as recommended somewhere in
> the documentation.
> 
> 
> Any ideas what migh be the cause of this?  Can anyone suggest any
> other things I can try to resolve or work around the problem?
> 
> Thanks.
> 
> --ken
> 
> Ken Lauffenburger
> 
> Design Engineer
> 730 E Park Blvd, Ste 208
> Plano TX 75074-8850
> 
> +1 214 796 4134 mobile
> [email protected]
> 

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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