google chrome crash linux host when windows client is using usb to connect to E71 cellphone

[cary co]

I'm using an Ubuntu 64bit Linux as host, running VBox with a brand new Windows XP3 guest. The guest's only new software installed is the Nokia Ovi Suite, which I use to manage my E71 cellphone thru USB. Now, when the cellphone is connected, if I start Google Chrome in the host, the whole host crashes suddenly.

When VBox is not started, or I'm not using my cellphone, Chrome works fine.

I don't notice other problems on the host can cause this problem.

I'm attaching a VBox.log file.

Note: I once installed KVM, so a "sudo rmmod kvm-intel" is needed before running VBox. Don't know if there is a connection.