3.0 very unstable on my System

[Nasenbaer]

Hello,
I'm using the current 3.0.0 final realease (PUEL version) on Windows Vista x64 SP2 und tried to install the current Gentoo Linux x86 release and the Windows 7 Ultimate RC x86. But both systems were unstable - on Linux the GCC often crashed with a segmentation fault and Windows had various problems during installtion (crashes, bluescreens) and on both systems i had from time to time the "Guru Meditation"-Crash of the whole VM.
Because of the fact that I could not found any other thread which describes similar problems I post it now here. Can anyone help me?

If you need a Log-File of a crashed VM, tell me please and I will post it.

Here is my system and the VM settings:

Host-System:
Intel Core i7-920 @default clock
6GB DDR3-1066 RAM
MSI EX58-UD4P
GF 8800GT 512MB
Windows Vista x64 SP2 / Arch Linux (I had Guru-Meditation errors on both host systems)
The stabilityon the host system was tested with Intel BurnIn Test software (more agressive test than prime tests)


VM-Settings for Gentoo Linux and Windows 7 Ultimate:
RAM: 3072MB
ACPI on
IO-ACPI on
6 Cores
PAE/NX on
VT-x on
Nested Paging on
16MB Graphics RAM
3D Accel on
IDE-Controller: (Linux guest - ICH6, Windows guest - PIIX4)
Audio and USB on (both system were also unstable with both settings set to off)

[Perryg]

First thing that you should look at doing is upgrade to version 3.0.2 and see if this help.
Also never give more than 50% of the available RAM to the guest or you will see the guru mediation error.
Almost every virtual machine I have installed will operate at 1024 Meg or under in a virtual environment. You can tweak this as time goes by but a good place to start.