I tried to reproduce this on a similar platform as Jamie, but could not, at least in my initial testing.
I'm running two Natty desktop live ISOs: kvm -m 1024 -smp 4 -cdrom /home/kirkland/.cache/testdrive/iso/ubuntu_natty-desktop-amd64.iso -drive file=/home/kirkland/.cache/testdrive/img/testdrive-disk-suoUtC.img,if=virtio,cache=writeback,index=0,boot=on -usb -usbdevice tablet -net nic,model=virtio -net user -soundhw es1370 -vga cirrus The backing disk is on an ext4 filesystem (a symlink busts it out of my encrypted home). I'm on an x201 with an i7 processor, and Centrino Ultimate-N 6300 wireless. Kernel is: Linux x201 2.6.38-3-generic #30-Ubuntu SMP Thu Feb 10 00:33:26 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. https://bugs.launchpad.net/bugs/694029 Title: [natty] kvm guests become unstable after a while -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs