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Hello i am trying to create a RAC lab, with KVM/QEMU using libvirt and when i
add the disk to both VMs and put the option shareable the app send the next
alert when i run both VMs:

rror starting domain: internal error: process exited while connecting to
monitor: 2017-11-30T05:23:44.088281Z qemu-system-x86_64: -chardev
pty,id=charserial0: char device redirected to /dev/pts/3 (label charserial0)
2017-11-30T05:23:44.160652Z qemu-system-x86_64: -device
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0:
Failed to get "write" lock
Is another process using the image?

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 89, in
cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 125, in tmpcb
    callback(*args, **kwargs)
  File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 82, in
newfn
    ret = fn(self, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/domain.py", line 1505, in startup
    self._backend.create()
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1069, in create
    if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
libvirtError: internal error: process exited while connecting to monitor:
2017-11-30T05:23:44.088281Z qemu-system-x86_64: -chardev pty,id=charserial0:
char device redirected to /dev/pts/3 (label charserial0)
2017-11-30T05:23:44.160652Z qemu-system-x86_64: -device
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0:
Failed to get "write" lock
Is another process using the image?

I try with SCSI and VirtIO but only appear that alert when i try run, first
turn on one, and when i try turn on the other one that message appear.

Reproducible: Always

Steps to Reproduce:
1.Create 2 VMs
2.Create a Raw image
3.add new disk on both VMs using the Raw image and putting the flag shareable.
Actual Results:  
appear the next alert:

Error starting domain: internal error: process exited while connecting to
monitor: 2017-11-30T05:23:44.088281Z qemu-system-x86_64: -chardev
pty,id=charserial0: char device redirected to /dev/pts/3 (label charserial0)
2017-11-30T05:23:44.160652Z qemu-system-x86_64: -device
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0:
Failed to get "write" lock
Is another process using the image?

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 89, in
cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 125, in tmpcb
    callback(*args, **kwargs)
  File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 82, in
newfn
    ret = fn(self, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/domain.py", line 1505, in startup
    self._backend.create()
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1069, in create
    if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
libvirtError: internal error: process exited while connecting to monitor:
2017-11-30T05:23:44.088281Z qemu-system-x86_64: -chardev pty,id=charserial0:
char device redirected to /dev/pts/3 (label charserial0)
2017-11-30T05:23:44.160652Z qemu-system-x86_64: -device
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0:
Failed to get "write" lock
Is another process using the image?

Expected Results:  
Both machine boot up and can see the disks IO on live.

Opensuse TW last snapshot 20171125 last kernel 4.14.1.1.