I believe there is an issue with online migration from qemu 2.6.0. I hit it
too. Online migration from latest 2.6.0 to latest 2.9.0 worked with no random
VM hangs for me.
On 11/10/2018, 07:58, "t HORIKOSHI" <t-horiko...@ijk.com> wrote:
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(kernel-2.6.32-504.3.3.el6,
kernel-2.6.32-504.el6, kernel-2.6.32-358.14.1.el6, kernel-2.6.32-642.15.1.el6
*2 )
This problem does not occur in guest OS VM, CentOS 7, ubuntu.
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
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