Computer hangs running Windows XP guest

[didierg]

My host configuration is the following:

• Gigabyte GA-790FXTA-UD5 mother board with AMD Phenom II X4 945 Processor
• Gigabyte ATI HD4650 graphic board
• Fedora 3.1.1-1.fc16.x86_64

My guest configuration is the following :

• Windows XP 32 bits SP3

I use the virtual host mostly for videoconferencing with Microsoft USB webcam.

Until few months ago, this configuration worked fine but now I experience hangs. When a hang occurs, both guest and host are affected and I have to do a hardware reset. Of course, If I have Linux applications opened on host, I lost data from these applications.

I try to run XP with 3D disabled and with both 3D and 2D disabled but hang still occurs.

I run memtest86+ during nights with no error and my systems is rather stable if I dont have virtual machine running.

[didierg]

Log of VM but without probleme