On Mon, Feb 27, 2017 at 10:11:04AM +0000, Stefan Hajnoczi wrote: > On Mon, Feb 27, 2017 at 05:40:50PM +0800, Xiong Zhou wrote: > > It worked fine on Linus tree commit: > > 7bb0338 Merge tag 'rodata-v4.11-rc1' of git://git.kernel.org/pub/scm/.. > > > > failed to start 2nd domain on this commit: > > 37c8596 Merge tag 'tty-4.11-rc1' of git://git.kernel.org/pub/scm/.. > > (this commit probably is not the first bad, i didn't do the bisecting) > > > > > > sh-4.2# uname -r > > 4.10.0-master-37c8596+ > > sh-4.2# rpm -qv qemu > > qemu-2.0.0-1.el7.6.x86_64 > > sh-4.2# ps ajxf | grep qemu > > ... > > sh-4.2# virsh list > > Id Name State > > ---------------------------------------------------- > > 1 73h running > > > > sh-4.2# virsh start 73us > > error: Failed to start domain 73us > > error: internal error: qemu unexpectedly closed the monitor: ((null):11497): Spice-Warning **: reds.c:2499:reds_init_socket: listen: Address already in use > > 2017-02-27T09:33:42.335708Z qemu-kvm: failed to initialize spice server > > The error message says that the spice remote desktop cannot listen on > -spice port=5900,addr=127.0.0.1. > > Did you hardcode port 5900 in the domain XML? That could explain why No. > the second guest fails to launch - you need to use unique port numbers > or let libvirt automatically assign them. Check the domain XML: > > <graphics type='spice' port='-1' tlsPort='-1' autoport='yes'> It looks like: <graphics type='spice' autoport='yes'> <listen type='address'/> <image compression='off'/> </graphics> > > Another possibility is that a process running on the host is already > using port 5900. Perhaps a guest or VNC server that was launched > outside of libvirt? You can check this with: > > netstat -alpn | grep 5900 # netstat -alpn | grep 5900 tcp 0 0 127.0.0.1:5900 0.0.0.0:* LISTEN 11065/qemu-kvm