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]
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