Description of problem:
Migrate a guest from source host to destination host side with some application running, it sometimes fails on the destination host. I hit this problem for about 4~5 times today, it happens in the following scenarios:
(1) Migrate guest during image installation (installing package stage).
(2) Migrate guest during cdrom is in use:
(in guest) # while true; do cp -r /media/RHEL7\ X86_64/ /home/test; sleep 1; rm -rm /home/test ; done
(3) Migrate guest when stress is running inside guest:
#stress -m 2

All the above scenarios are with xbzrle=on when I do migration. But I'm not sure whether xbzrle=off could trigger it because the bug is not always reproduced. This will need lots of time attempts.

Version-Release number of selected component (if applicable):
kernek-3.10.0-63.el7.x86_64
qemu-kvm-1.5.3-24.el7.x86_64

How reproducible:
Always 

Steps to Reproduce:
1. Boot up a guest on source host 

/usr/libexec/qemu-kvm -cpu SandyBridge -enable-kvm -m 2048 -smp 2,sockets=2,cores=1,threads=1 -enable-kvm -name t2-rhel6.4-32 -uuid 61b6c504-5a8b-4fe1-8347-6c929b750dde -k en-us -rtc base=localtime,clock=host,driftfix=slew -no-kvm-pit-reinjection -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device usb-tablet,id=input0 -drive file=/mnt/installation.qcow2,if=none,id=disk0,format=qcow2,werror=stop,rerror=stop,aio=native -device ide-drive,bus=ide.0,unit=1,drive=disk0,id=disk0  -drive file=/mnt/boot.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,drive=drive-ide0-1-0,bus=ide.1,unit=0,id=cdrom -netdev tap,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=44:37:E6:5E:91:85,bus=pci.0,addr=0x5 -monitor stdio -qmp tcp:0:6666,server,nowait -chardev socket,path=/tmp/isa-serial,server,nowait,id=isa1 -device isa-serial,chardev=isa1,id=isa-serial1 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x8 -chardev socket,id=charchannel0,path=/tmp/serial-socket,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm -chardev socket,path=/tmp/foo,server,nowait,id=foo -device virtconsole,chardev=foo,id=console0  -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x9 -vnc :10 -k en-us -boot dc -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtserialport,bus=virtio-serial0.0,chardev=qga0,name=org.qemu.guest_agent.0  -global  PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0

2.  
(qemu)migrate_set_capability xbzrle on
(qemu) migrate_set_cache_size 2G

3. Do 1 of the following 3 scenarios:
(1) install guest (for an empty image)
(2) read cdrom inside guest (for an pre-installed image)
(in guest) # while true; do cp -r /media/RHEL7\ X86_64/ /home/test; sleep 1; rm -rm /home/test ; done
(3) Migrate guest when stress is running inside guest:
#stress -m 2

4. Migrate the guest
(qemu) migrate -d tcp:t2:5800

Actual results:
Guest failed to load on the destination host:
(qemu) info status 
VM status: paused (inmigrate)
(qemu) qemu: warning: error while loading state section id 2
load of migration failed


Expected results:
Guest should be migrated successfully and work well.

Additional info:
Sometimes the issue happens when the migration has not finished, so guest is still running on src host. But sometimes the problems happens just when migration finished. Then guest will be dead.