id summary reporter owner description type status component version resolution keywords cc guest host 860 VirtualBox crash with 2GB RAM in guest Technologov " Host: Windows XP SP2, Core 2 Quad, 4GB of RAM, VBox 1.5.2. Guest: Windows XP SP2, 2GB of RAM. (ACPI=on, APIC and VT=off) When I start Windows guest with 2 GB of RAM, it stucks. (it boots, I can play with it for several seconds, then VM stops) Afterwards, I close the VM window, and VirtualBox crashes. In short, the memory allocation is unstable. -Technologov" defect closed other VirtualBox 1.5.2 fixed other other