<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=gb2312"> <meta name=Generator content="Microsoft Word 12 (filtered medium)"> <style>  </style>  </head> <body lang=ZH-CN link=blue vlink=purple style='text-justify-trim:punctuation'> <div class=WordSection1> Hi guys, I met a libvirt error<o:p></o:p> <o:p> </o:p> Below is the information I got, <o:p></o:p> <o:p> </o:p> Libvirt version:<o:p></o:p> [root@kvm-yxnd-tjhy-8 qemu]# yum list installed |grep kvm<o:p></o:p> etherboot-roms-kvm.x86_64 5.4.4-13.el5.centos installed<o:p></o:p> etherboot-zroms-kvm.x86_64 5.4.4-13.el5.centos installed<o:p></o:p> kmod-kvm.x86_64 83-164.el5_5.23 installed<o:p></o:p> kvm.x86_64 83-164.el5_5.23 installed<o:p></o:p> kvm-qemu-img.x86_64 83-164.el5_5.23 installed<o:p></o:p> kvm-tools.x86_64 83-164.el5_5.23 installed<o:p></o:p> [root@kvm-yxnd-tjhy-8 qemu]# yum list installed |grep libvirt<o:p></o:p> libvirt.x86_64 0.8.3-1.el5 installed<o:p></o:p> libvirt-client.x86_64 0.8.3-1.el5 installed<o:p></o:p> libvirt-debuginfo.x86_64 0.8.3-1.el5 installed<o:p></o:p> libvirt-devel.x86_64 0.8.3-1.el5 installed<o:p></o:p> libvirt-python.x86_64 0.8.3-1.el5 installed<o:p></o:p> [root@kvm-yxnd-tjhy-8 qemu]# yum list installed |grep qemu<o:p></o:p> kvm-qemu-img.x86_64 83-164.el5_5.23 installed<o:p></o:p> <o:p> </o:p> start vm error information , <o:p></o:p> <o:p> </o:p> [root@kvm-yxnd-tjhy-8 ~]# virsh list --all<o:p></o:p> Id Name State<o:p></o:p> ----------------------------------<o:p></o:p> - iotest shut off<o:p></o:p> - yxnd-gs-win32-qq shut off<o:p></o:p> <o:p> </o:p> [root@kvm-yxnd-tjhy-8 ~]# virsh start iotest<o:p></o:p> error: Failed to start domain iotest<o:p></o:p> error: internal error Process exited while reading console log output:<o:p></o:p> <o:p> </o:p> [root@kvm-yxnd-tjhy-8 ~]# cat /etc/libvirt/libvirtd.conf |grep log_level<o:p></o:p> log_level = 1<o:p></o:p> <o:p> </o:p> tail /var/log/libvirt/qemu/iotest.log<o:p></o:p> LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin HOME=/root USER=root LOGNAME=root QEMU_AUDIO_DRV=none /usr/libexec/qemu-kvm -S -M rhel5.4.0 -m 2048 -smp 4 -name iotest -uuid ec2bec5e-096b-6d41-238f-378b8cf39ad8 -monitor unix:/var/lib/libvirt/qemu/iotest.monitor,server,nowait -localtime -boot c -drive file=/datapool/iotest.qcow2,if=virtio,boot=on,format=qcow2,cache=none -net nic,macaddr=00:16:36:13:96:18,vlan=0,model=virtio -net tap,fd=17,vlan=0 -net nic,macaddr=00:16:36:7d:cb:c6,vlan=1,model=virtio -net tap,fd=18,vlan=1 -serial pty -parallel none -usb -usbdevice tablet -vnc 0.0.0.0:0 -k en-us -vga cirrus -balloon virtio<o:p></o:p> <o:p> </o:p> <o:p> </o:p> [root@kvm-yxnd-tjhy-8 qemu]# cat /etc/libvirt/qemu/iotest.xml <o:p></o:p> <domain type='kvm'><o:p></o:p> <name>iotest</name><o:p></o:p> <uuid>ec2bec5e-096b-6d41-238f-378b8cf39ad8</uuid><o:p></o:p> <memory>2097152</memory><o:p></o:p> <currentMemory>2097152</currentMemory><o:p></o:p> <vcpu>4</vcpu><o:p></o:p> <os><o:p></o:p> <type arch='x86_64' machine='rhel5.4.0'>hvm</type><o:p></o:p> <boot dev='hd'/><o:p></o:p> </os><o:p></o:p> <features><o:p></o:p> <acpi/><o:p></o:p> <apic/><o:p></o:p> <pae/><o:p></o:p> </features><o:p></o:p> <clock offset='localtime'/><o:p></o:p> <on_poweroff>destroy</on_poweroff><o:p></o:p> <on_reboot>restart</on_reboot><o:p></o:p> <on_crash>restart</on_crash><o:p></o:p> <devices><o:p></o:p> <emulator>/usr/libexec/qemu-kvm</emulator><o:p></o:p> <disk type='file' device='disk'><o:p></o:p> <driver name='qemu' type='qcow2' cache='none'/><o:p></o:p> <source file='/datapool/iotest.qcow2'/><o:p></o:p> <target dev='vda' bus='virtio'/><o:p></o:p> </disk><o:p></o:p> <interface type='bridge'><o:p></o:p> <mac address='00:16:36:13:96:18'/><o:p></o:p> <source bridge='br1'/><o:p></o:p> <model type='virtio'/><o:p></o:p> </interface><o:p></o:p> <interface type='bridge'><o:p></o:p> <mac address='00:16:36:7d:cb:c6'/><o:p></o:p> <source bridge='br0'/><o:p></o:p> <model type='virtio'/><o:p></o:p> </interface><o:p></o:p> <serial type='pty'><o:p></o:p> <target port='0'/><o:p></o:p> </serial><o:p></o:p> <console type='pty'><o:p></o:p> <target type='serial' port='0'/><o:p></o:p> </console><o:p></o:p> <input type='tablet' bus='usb'/><o:p></o:p> <input type='mouse' bus='ps2'/><o:p></o:p> <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/><o:p></o:p> <video><o:p></o:p> <model type='cirrus' vram='9216' heads='1'/><o:p></o:p> </video><o:p></o:p> <memballoon model='virtio'/><o:p></o:p> </devices><o:p></o:p> </domain><o:p></o:p> <o:p> </o:p> <o:p> </o:p> The error log of /var/log/message:<o:p></o:p> <o:p> </o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 libvirtd: 15:23:00.775: info : qemuSecurityDACSetOwnership:40 : Setting DAC user and group on '/datapool/iotest.qcow2' to '0:0' <o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 libvirtd: 15:23:00.797: info : qemudDispatchSignalEvent:401 : Received unexpected signal 17 <o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 libvirtd: 15:23:00.798: info : brProbeVnetHdr:449 : Enabling IFF_VNET_HDR <o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: device vnet0 entered promiscuous mode<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: device vnet0 entered promiscuous mode<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: printk: 6 messages suppressed.<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: printk: 6 messages suppressed.<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: type=1700 audit(1291015380.812:157): dev=vnet0 prom=256 old_prom=0 auid=4294967295 ses=4294967295<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: type=1700 audit(1291015380.812:157): dev=vnet0 prom=256 old_prom=0 auid=4294967295 ses=4294967295<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br1: port 2(vnet0) entering learning state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br1: port 2(vnet0) entering learning state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 libvirtd: 15:23:00.814: info : brProbeVnetHdr:449 : Enabling IFF_VNET_HDR <o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: device vnet1 entered promiscuous mode<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: device vnet1 entered promiscuous mode<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: type=1700 audit(1291015380.828:158): dev=vnet1 prom=256 old_prom=0 auid=4294967295 ses=4294967295<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: type=1700 audit(1291015380.828:158): dev=vnet1 prom=256 old_prom=0 auid=4294967295 ses=4294967295<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br0: port 2(vnet1) entering learning state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br0: port 2(vnet1) entering learning state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: libvirtd[7487]: segfault at 00000000431e7000 rip 000000000043440c rsp 00000000431e4480 error 4<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: libvirtd[7487]: segfault at 00000000431e7000 rip 000000000043440c rsp 00000000431e4480 error 4<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 libvirtd: 15:23:00.837: error : virExecDaemonize:782 : internal error Intermediate daemon process exited with status 0. <o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 libvirtd: 15:23:00.837: info : qemudDispatchSignalEvent:401 : Received unexpected signal 17 <o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br1: port 2(vnet0) entering disabled state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br1: port 2(vnet0) entering disabled state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: device vnet0 left promiscuous mode<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: device vnet0 left promiscuous mode<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: type=1700 audit(1291015380.858:159): dev=vnet0 prom=0 old_prom=256 auid=4294967295 ses=4294967295<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: type=1700 audit(1291015380.858:159): dev=vnet0 prom=0 old_prom=256 auid=4294967295 ses=4294967295<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br1: port 2(vnet0) entering disabled state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br1: port 2(vnet0) entering disabled state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br0: port 2(vnet1) entering disabled state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br0: port 2(vnet1) entering disabled state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: device vnet1 left promiscuous mode<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: device vnet1 left promiscuous mode<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: type=1700 audit(1291015380.887:160): dev=vnet1 prom=0 old_prom=256 auid=4294967295 ses=4294967295<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: type=1700 audit(1291015380.887:160): dev=vnet1 prom=0 old_prom=256 auid=4294967295 ses=4294967295<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br0: port 2(vnet1) entering disabled state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 kernel: br0: port 2(vnet1) entering disabled state<o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 libvirtd: 15:23:00.895: error : qemudReadLogOutput:2118 : internal error Process exited while reading console log output: <o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 libvirtd: 15:23:00.895: info : qemuSecurityDACRestoreSecurityFileLabel:80 : Restoring DAC user and group on '/datapool/iotest.qcow2' <o:p></o:p> Nov 29 15:23:00 kvm-yxnd-tjhy-8 libvirtd: 15:23:00.895: info : qemuSecurityDACSetOwnership:40 : Setting DAC user and group on '/datapool/iotest.qcow2' to '0:0'<o:p></o:p> <o:p> </o:p> <o:p> </o:p> I had disable the selinux before, I tried boot the vm via qemu-kvm, it works fine, so what was the problem ? thanks very much for any suggestion and help.<o:p></o:p> <o:p> </o:p> <o:p> </o:p> </div> </body> </html>