[CentOS-virt] Failing to start or create VM, cannot connect to hypervisor host

Chris Geldenhuis chris.gelden at iafrica.com
Sun Jun 17 02:09:45 EDT 2012


On 06/16/2012 11:14 PM, jboyce at meridianenv.com wrote:
> Greetings -
>
> I shutdown one of my Centos 6.2 VMs for some offline maintenance and am
> now unable to get it to restart.  I am also unable to create and start a
> new VM.  The host system is Centos 6.2, fully up to date.  I have been
> searching Google for two days and have not been successful in getting a VM
> to start.  I have restarted libvirtd, but did not want to shutdown my
> other two running VMs and reboot my host system, unless I felt confident
> that it would solve the problem.  The other two VMs on the box are still
> running fine, but I am also unable to connect to a console in VirtManger
> with them.  I was able to connect to all these VM consoles from the host
> system just a week or so ago.  The only changes that I had recently made
> to the host system was to add some restrictions in my /etc/hosts.allow and
> hosts.deny files and installed Fail2ban.  I have reversed all of the
> changes to my hosts.allow/deny files and have stopped the Fail2ban
> service.  Still unable to start or create a VM.  I am at the end of my
> rope here and am hoping someone will be able to direct me with where I
> should be looking next.  My error and log messages are listed below.
> Thanks.
>
> Jeff
>
>
>
>
> Trying to start the VM using VirtManager at the console of the host
> results in the following error.
>
> error:  Failed to start domain SequoiaVM
> error:  internal error process exited while connecting to monitor: char
> device redirected to /dev/pts/7
> inet_listen_opts:  bind(ipv4, 127.0.0.1, 5902) : Cannot assign requested
> address
> inet_listen_opts:  FAILED
>
>
> Each attempt at a restart results in the following set of messages in
> /var/log/messages
>
> Jun 16 13:45:04 earth kernel: device vnet2 entered promiscuous mode
> Jun 16 13:45:04 earth kernel: br0: port 4(vnet2) entering learning state
> Jun 16 13:45:04 earth qemu-kvm: Could not find keytab file:
> /etc/qemu/krb5.tab: No such file or directory
> Jun 16 13:45:04 earth kernel: br0: port 4(vnet2) entering disabled state
> Jun 16 13:45:04 earth kernel: device vnet2 left promiscuous mode
> Jun 16 13:45:04 earth kernel: br0: port 4(vnet2) entering disabled state
> Jun 16 13:45:04 earth kernel: libfcoe_device_notification:
> NETDEV_UNREGISTER vnet2
>
>
> Log messages in /var/log/libvirt/libvirtd.log are similar to the console
>
> 2012-06-16 19:56:39.807+0000: 32175: error : virNetSocketReadWire:911 :
> End of file while reading data: Input/output error
> 2012-06-16 20:15:23.672+0000: 32176: error : qemuMonitorOpenUnix:290 :
> failed to connect to monitor socket: No such process
> 2012-06-16 20:15:23.672+0000: 32176: error :
> qemuProcessWaitForMonitor:1289 : internal error process exited while
> connecting to monitor: char device redirected to /dev/pts/7
> inet_listen_opts: bind(ipv4,127.0.0.1,5902): Cannot assign requested address
> inet_listen_opts: FAILED
>
>
> Log messages in /var/log/libvirt/qemu/SequoiaVM.log are similar
>
> 2012-06-16 13:45:04.572: starting up
> LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin QEMU_AUDIO_DRV=none
> /usr/libexec/qemu-kvm -S -M rhel6.2.0 -enable-kvm -m 2048 -smp
> 4,sockets=4,cores=1,threads=1 -name SequoiaVM -uuid
> 1ca3a14b-cd4b-f371-b3fe-1cd518480c09 -nodefconfig -nodefaults -chardev
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/SequoiaVM.monitor,server,nowait
> -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc
> -no-shutdown -boot order=dc,menu=on -drive
> file=/dev/vg_mei/lv_sequoiaroot,if=none,id=drive-virtio-disk0,format=raw,cache=none,aio=native
> -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0
> -drive
> file=/dev/vg_mei/lv_sequoiaswap,if=none,id=drive-virtio-disk1,format=raw,cache=none,aio=native
> -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk1,id=virtio-disk1
> -drive
> file=/dev/vg_mei/lv_sequoiavar,if=none,id=drive-virtio-disk2,format=raw,cache=none,aio=native
> -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk2,id=virtio-disk2
> -drive
> file=/dev/vg_mei/lv_sequoiahome,if=none,id=drive-virtio-disk3,format=raw,cache=none,aio=native
> -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x8,drive=drive-virtio-disk3,id=virtio-disk3
> -drive
> file=/dev/vg_mei/lv_sequoiaecosystem,if=none,id=drive-virtio-disk4,format=raw,cache=none,aio=native
> -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x9,drive=drive-virtio-disk4,id=virtio-disk4
> -drive
> file=/dev/sr0,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw
> -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0
> -netdev tap,fd=28,id=hostnet0,vhost=on,vhostfd=29 -device
> virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:9d:b2:49,bus=pci.0,addr=0x3
> -chardev pty,id=charserial0 -device
> isa-serial,chardev=charserial0,id=serial0 -usb -device
> usb-tablet,id=input0 -vnc 127.0.0.1:2 -vga cirrus -device
> intel-hda,id=sound0,bus=pci.0,addr=0x4 -device
> hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device
> virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0xa
> char device redirected to /dev/pts/7
> inet_listen_opts: bind(ipv4,127.0.0.1,5902): Cannot assign requested address
> inet_listen_opts: FAILED
> 2012-06-16 13:45:04.872: shutting down
>
>
> I attempted to create a new VM (TempSequoiaVM) via VirtManager which also
> failed to be created and started.  These are the messages in
> /var/log/libvirt/qemu/TempSequoiaVM.log
>
> 2012-06-16 13:15:23.168: starting up
> LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin QEMU_AUDIO_DRV=none
> /usr/libexec/qemu-kvm -S -M rhel6.2.0 -enable-kvm -m 2048 -smp
> 2,sockets=2,cores=1,threads=1 -name TempSequoiaVM -uuid
> ef6c99c7-7fea-e24d-447c-cf98d6ffbec3 -nodefconfig -nodefaults -chardev
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/TempSequoiaVM.monitor,server,nowait
> -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-reboot
> -no-shutdown -drive
> file=/dev/vg_mei/lv_TempSequoia,if=none,id=drive-virtio-disk0,format=raw,cache=none,aio=native
> -device
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=2
> -drive
> file=/dev/sr0,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw
> -device
> ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0,bootindex=1
> -netdev tap,fd=25,id=hostnet0,vhost=on,vhostfd=26 -device
> virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:48:59:9e,bus=pci.0,addr=0x3
> -chardev pty,id=charserial0 -device
> isa-serial,chardev=charserial0,id=serial0 -usb -device
> usb-tablet,id=input0 -vnc 127.0.0.1:2 -vga cirrus -device
> intel-hda,id=sound0,bus=pci.0,addr=0x4 -device
> hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device
> virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
> char device redirected to /dev/pts/7
> inet_listen_opts: bind(ipv4,127.0.0.1,5902): Cannot assign requested address
> inet_listen_opts: FAILED
> 2012-06-16 13:15:23.673: shutting down
>
>
>
> _______________________________________________
> CentOS-virt mailing list
> CentOS-virt at centos.org
> http://lists.centos.org/mailman/listinfo/centos-virt
>
FWIW I updated my VMs (4) and host on one of my servers yesterday and 
rebooted. All the VMs came up normally and can be accessed over the 
network or by the VM Manager.

ChrisG



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