Description of problem:


Version-Release number of selected component (if applicable):
--Host
# rpm -qa|grep kvm
kmod-kvm-83-215.el5
kmod-kvm-debug-83-215.el5
kvm-qemu-img-83-215.el5
kvm-tools-83-215.el5
etherboot-zroms-kvm-5.4.4-13.el5
kvm-debuginfo-83-215.el5
kvm-83-215.el5

# uname -r
2.6.18-232.el5

--Guest

# uname -r
2.6.32-71.el6.x86_64



How reproducible:


Steps to Reproduce:
1. boot guest with
# /usr/libexec/qemu-kvm -no-hpet -rtc-td-hack -usbdevice tablet -startdate now -name rhel6.0-64 -smp 2 -m 4G -boot c  -drive file=/root/zhangjunyi/rhel6.0_64.qcow2,media=disk,if=ide,cache=none,format=qcow2,werror=stop,boot=on -vnc :18 -cpu qemu64 -M rhel5.6.0 -notify all -balloon none -monitor stdio -net none
2. connect to guest use vnc
3. suspend to disk
# echo disk > /sys/power/state
  
Actual results:

guest cannot suspend to s4
Expected results:

guest suspend to s4 correctly
Additional info:
1. Both hit the issue with -pcidevice and without -pcidevice
2. guest error message: write error: device or resouce busy
3. attached screenshot and kernel output