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+The guest will be destroyed after hot remove the VF from the guest. 
+
+Environment:
+------------
+Host OS (ia32/ia32e/IA64):ia32e
+Guest OS (ia32/ia32e/IA64):ia32e
+Guest OS Type (Linux/Windows):Linux
+kvm.git Commit:9f6226a762c7ae02f6a23a3d4fc552dafa57ea23
+qemu.git Commit:5a7348045091a2bc15d85bb177e5956aa6114e5a
+Host Kernel Version:3.16.0-rc1
+Hardware:Romley_EP, Ivytown_EP,Haswell_EP
+
+
+Bug detailed description:
+--------------------------
+hot add the VF to the guest, then hot remove the VF from the guest, the guest will be destroyed.
+
+note:
+1. when hot add the VF with vfio, the hot remove the VF from the guest, the guest works fine.
+2. this shoule be a qemu bug:
+kvm       +   qemu    = result
+9f6226a7  +  5a734804 = bad
+9f6226a7  +  9f862687 = good
+
+
+
+Reproduce steps:
+----------------
+1. create guest
+qemu-system-x86_64 --enable-kvm -m 1024 -smp 4 -net none rhel6u5.qcow -monitor pty
+2. hot add the vf to guest
+echo "device_add pci-assign,host=05:10.0,id=nic" >/dev/pts/x
+cat /dev/pts/x
+3. hot remove the VF froem guest
+echo "device_del nic" >/dev/pts/x
+
+Current result:
+----------------
+the guest willl be destroyed after hot remove the VF from the guest
+
+Expected result:
+----------------
+the guest works fine after hot remove the VF from the guest
+
+
+Basic root-causing log:
+----------------------
+[root@vt-snb9 qemu.git]# qemu-system-x86_64 -enable-kvm -m 1024 -smp 2 -net none rhel6u5.qcow -monitor pty
+VNC server running on `::1:5900'
+**
+ERROR:qom/object.c:725:object_unref: assertion failed: (obj->ref > 0)
+Aborted (core dumped)
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