Hi, I'm using RHV. When live migration of guest VM (CentOS 6) from RHV Host 4.0 to RHV Host 4.2.6, it hung up immediately after migration. When ssh login to the RHV Host and executing the top command, the CPU usage rate of the qemu - kvm process of the corresponding VM was close to 400%. (I assigned 4 CPUs to this VM) To solve this hangup, there was only power off. This problem has already occurred at 5 VM. This problem does not occur in guest OS VM, CentOS 7, ubuntu. Even though the guest VM is CentOS 6, it does not occur in VM with short uptime.
Why does this problem occur? [[Migration source host]] OS Version: RHEL - 4.0 - 7.1.el7 OS Description: Red Hat Virtualization Host 4.0 (el7.3) Kernel Version: 3.10.0 - 514.10.2.el7.x86_64 KVM Version: 2.6.0 - 28.el7_3.6 LIBVIRT Version: libvirt-2.0.0-10.el7_3.5 VDSM Version: vdsm-4.18.24-3.el7ev SPICE Version: 0.12.4 - 20.el7_3 GlusterFS Version: [N/A] CEPH Version: librbd1-0.94.5-1.el7 Kernel Features: N/A CPU model: Intel(R) Xeon(R) CPU E5-2697 v4 @ 2.30GHz CPU Type: Intel Broadwell-noTSX Family [[Migration destination host]] OS Version: RHEL - 7.5 - 6.2.el7 OS Description: Red Hat Virtualization Host 4.2.6 (el7.5) Kernel Version: 3.10.0 - 862.14.4.el7.x86_64 KVM Version: 2.10.0 - 21.el7_5.4 LIBVIRT Version: libvirt-3.9.0-14.el7_5.7 VDSM Version: vdsm-4.20.39.1-1.el7ev SPICE Version: 0.14.0 - 2.el7_5.4 GlusterFS Version: glusterfs-3.8.4-54.15.el7rhgs CEPH Version: librbd1-0.94.5-2.el7 Kernel Features: RETP: 1, IBRS: 0, PTI: 1 CPU model: Intel(R) Xeon(R) CPU E5-2697 v4 @ 2.30GHz CPU Type: Intel Broadwell-noTSX-IBRS Family [[ /var/log/libvirt/qemu/web-001.log]] 2018-10-10 03:56:04.828+0000: starting up libvirt version: 3.9.0, package: 14.el7_5.7 (Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>, 2018-07-27-12:56:56, x86-037.build.eng.bos.redhat.com), qemu version: 2.10.0(qemu-kvm-rhev-2.10.0-21.el7_5.4), hostname: host-04 LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin QEMU_AUDIO_DRV=spice /usr/libexec/qemu-kvm -name guest=web-001,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-13-xyxon_verify_web-001/master-key.aes -machine pc-i440fx-rhel7.2.0,accel=kvm,usb=off,dump-guest-core=off -cpu SandyBridge -m size=12582912k,slots=16,maxmem=4294967296k -realtime mlock=off -smp 4,maxcpus=16,sockets=16,cores=1,threads=1 -numa node,nodeid=0,cpus=0-3,mem=12288 -uuid 9b038cf5-1913-42a1-adfe-3b1eb06d4611 -smbios 'type=1,manufacturer=Red Hat,product=RHEV Hypervisor,version=7.2-20160711.0.el7ev,serial=7602B47E-E827-11E3-B8AB-6CAE8B08B02B,uuid=9b038cf5-1913-42a1-adfe-3b1eb06d4611' -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-13-web-001/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=2018-10-10T03:56:05,driftfix=slew -global kvm-pit.lost_tick_policy=delay -no-hpet -no-shutdo wn -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x4 -device virtio-serial-pci,id=virtio-serial0,max_ports=16,bus=pci.0,addr=0x5 -drive 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 -drive file=/rhev/data-center/00000001-0001-0001-0001-000000000383/450774af-11c3-4ea0-9d42-845809159f51/images/36a3d651-6b37-4dab-b4aa-911dcf0218ad/9e89f573-6931-4beb-937b-d50e8af67aa6,format=qcow2,if=none,id=drive-virtio-disk0,serial=36a3d651-6b37-4dab-b4aa-911dcf0218ad,cache=none,werror=stop,rerror=stop,aio=native -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=56,id=hostnet0,vhost=on,vhostfd=58 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:1a:4a:16:01:70,bus=pci.0,addr=0x3 -netdev tap,fd=59,id=hostnet1,vhost=on,vhostfd=60 -device virtio-net-pci,netdev=hostnet1,id=net1,mac=00:1a:4a:16:01 :71,bus=pci.0,addr=0x8 -chardev socket,id=charserial0,path=/var/run/ovirt-vmconsole-console/9b038cf5-1913-42a1-adfe-3b1eb06d4611.sock,server,nowait -device isa-serial,chardev=charserial0,id=serial0 -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channels/9b038cf5-1913-42a1-adfe-3b1eb06d4611.com.redhat.rhevm.vdsm,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm -chardev socket,id=charchannel1,path=/var/lib/libvirt/qemu/channels/9b038cf5-1913-42a1-adfe-3b1eb06d4611.org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=org.qemu.guest_agent.0 -chardev spicevmc,id=charchannel2,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=3,chardev=charchannel2,id=channel2,name=com.redhat.spice.0 -device usb-tablet,id=input0 -vnc 0:21,password -k ja -spice tls-port=5922,addr=0,x509-dir=/etc/pki/vdsm/libvirt-spice,tls-channel=default,tls-c hannel=main,tls-channel=display,tls-channel=inputs,tls-channel=cursor,tls-channel=playback,tls-channel=record,tls-channel=smartcard,tls-channel=usbredir,seamless-migration=on -k ja -device qxl-vga,id=video0,ram_size=67108864,vram_size=8388608,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 -incoming defer -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7 -msg timestamp=on 2018-10-10T03:56:05.017861Z qemu-kvm: -drive file=/rhev/data-center/00000001-0001-0001-0001-000000000383/450774af-11c3-4ea0-9d42-845809159f51/images/36a3d651-6b37-4dab-b4aa-911dcf0218ad/9e89f573-6931-4beb-937b-d50e8af67aa6,format=qcow2,if=none,id=drive-virtio-disk0,serial=36a3d651-6b37-4dab-b4aa-911dcf0218ad,cache=none,werror=stop,rerror=stop,aio=native: 'serial' is deprecated, please use the corresponding option of '-device' instead 2018-10-10T03:56:05.100865Z qemu-kvm: warning: CPU(s) not present in any NUMA nodes: CPU 4 [socket-id: 4, core-id: 0, thread-id: 0], CPU 5 [socket-id: 5, core-id: 0, thread-id: 0], CPU 6 [socket-id: 6, core-id: 0, thread-id: 0], CPU 7 [socket-id: 7, core-id: 0, thread-id: 0], CPU 8 [socket-id: 8, core-id: 0, thread-id: 0], CPU 9 [socket-id: 9, core-id: 0, thread-id: 0], CPU 10 [socket-id: 10, core-id: 0, thread-id: 0], CPU 11 [socket-id: 11, core-id: 0, thread-id: 0], CPU 12 [socket-id: 12, core-id: 0, thread-id: 0], CPU 13 [socket-id: 13, core-id: 0, thread-id: 0], CPU 14 [socket-id: 14, core-id: 0, thread-id: 0], CPU 15 [socket-id: 15, core-id: 0, thread-id: 0] 2018-10-10T03:56:05.100893Z qemu-kvm: warning: All CPU(s) up to maxcpus should be described in NUMA config, ability to start up with partial NUMA mappings is obsoleted and will be removed in future main_channel_link: add main channel client _______________________________________________ Users mailing list -- [email protected] To unsubscribe send an email to [email protected] Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/[email protected]/message/G5GJOKHW26QDXYVXDPLXA3Y6RPBBMVQE/
