Crash when allocating more than 1500MB of memory for guest

[s.illes79]

Hi,

I'm using Windows XP 32 bit host, I;ve added /3GB parameter to boot.ini. Virtual box can see 3567MB RAM of ram, but when I allocated 2000MB of memory with VBoxManage to my Ubuntu 32bit host than vbox keeps crashing frequently. I think it happens after the guest reached 1500MB of memory usage.

Steps to reproduces:

1. added /3GB to boot.ini, reboot windows
2. change memory for guest to 2000MB ( also tried 2500, 1950 )
3. use a memtester in the guest to stress memory usage.

VBox works fine with 1500MB - which is the maximum can be set with the UI.

Thanks, Szabolcs