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 > 11441 11462 11461 10972 pts/0 11461 S+ 0 0:00 \_ grep qemu > 1 11065 11064 11064 ? -1 Sl 107 2:03 /usr/libexec/qemu-kvm -name 73h -S -machine pc-i440fx-rhel7.0.0,accel=kvm,usb=off,dump-guest-core=off -cpu Haswell,-hle,-rtm -m 8000 -realtime mlock=off -smp 8,sockets=8,cores=1,threads=1 -uuid aab09e0f-d48a-4223-9b81-35d4718d59fc -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-1-73h/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=delay -no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x6.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x6 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x6.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x6.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -drive file=/var/lib/libvirt/images/rhel73.qcow2,format=qcow2,if=none,id=drive-ide0-0-0 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -drive file=/var/lib/libvirt/images/73h.qcow2,format=qcow2,if=none,id=drive-ide0-0-1 -device ide-hd,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 -drive file=/root/RHEL-7.2-20151030.0-Server-x86_64-dvd1.iso,format=raw,if=none,id=drive-ide0-1-0,readonly=on -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0,bootindex=2 -netdev tap,fd=25,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:83:12:7b,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -chardev spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 -spice port=5900,addr=127.0.0.1,disable-ticketing,image-compression=off,seamless-migration=on -vga qxl -global qxl-vga.ram_size=67108864 -global qxl-vga.vram_size=67108864 -global qxl-vga.vgamem_mb=16 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev spicevmc,id=charredir0,name=usbredir -device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=1 -chardev spicevmc,id=charredir1,name=usbredir -device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7 -msg timestamp=on > 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 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'> 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 Stefan
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