device: 0.168 semantic: 0.167 vnc: 0.147 other: 0.109 graphic: 0.074 performance: 0.050 files: 0.049 socket: 0.046 permissions: 0.043 PID: 0.043 network: 0.032 debug: 0.030 boot: 0.030 KVM: 0.010 debug: 0.239 files: 0.141 performance: 0.116 other: 0.110 PID: 0.108 device: 0.062 semantic: 0.060 boot: 0.042 network: 0.041 socket: 0.025 graphic: 0.017 vnc: 0.016 KVM: 0.012 permissions: 0.011 Incorrect order of task switching In Intel specifications (http://download.intel.com/design/processor/manuals/253668.pdf 7.3), we can see: 8. Saves the state of the current (old) task in the current task’s TSS. … 11. Loads the task register with the segment selector and descriptor for the new task's TSS. But, in QEMU code (https://raw.github.com/qemu/QEMU/v1.0/target-i386/op_helper.c :375), the order is reversed: TSS registers & segments loads BEFORE save old task state. Some bug in VirtualBox: https://www.virtualbox.org/ticket/10532 Is problem still reproducable with the latest version of QEMU, or has it been fixed nowadays? [Expired for QEMU because there has been no activity for 60 days.]