Hello, with linux kernel 3.5rc6 and 3.5rc7 I do not test with other kernel 3.5. On linux kernel 3.3.8 , threre is no problem. If I start qemu-kvm process, system is overload and dmesg : BUG: unable to handle kernel paging request at 000000010000003b IP: [<ffffffff8119f694>] tid_fd_revalidate+0x84/0x1a0 PGD 66989a067 PUD 0 Oops: 0000 [#1] SMP CPU 3 Modules linked in: [last unloaded: kvm] Regards, Nicolas Prochazka -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html