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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
commitdee4dcba78baf712cab403d47d9db319ab7f95d6 (patch)
tree418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/108/performance/1477
parent4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff)
downloademulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz
emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip
restructure results
Diffstat (limited to 'results/classifier/108/performance/1477')
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diff --git a/results/classifier/108/performance/1477 b/results/classifier/108/performance/1477
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--- a/results/classifier/108/performance/1477
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@@ -1,306 +0,0 @@
-performance: 0.938
-graphic: 0.919
-permissions: 0.908
-KVM: 0.908
-debug: 0.906
-PID: 0.906
-other: 0.903
-semantic: 0.901
-device: 0.900
-socket: 0.894
-boot: 0.883
-vnc: 0.874
-network: 0.846
-files: 0.799
-
-hot-plugged interface are not working after live migration
-Description of problem:
-After a live migration are perform for a vm then hot-plug interface pci didn't show up, but did found a SCSI storage controller is created. I checked libvirt did send qmp command to qemu `[pid 320011] 1673945683.378537 write(42, "{"execute":"device_add","arguments":{"driver":"virtio-net-pci","netdev":"hostua-test","id":"ua-test","mac":"00:e0:4c:6a:3b:51","bus":"pci.7","addr":"0x0"},"id":"libvirt-200"}rn", 176) = 176
-`
-Steps to reproduce:
-1. Perform a live migration by issue command `virsh migrate --live --persistent --verbose --unsafe --p2p demo-vm qemu+tls://node8/system?pkipath=/etc/pki/libvirt/private/`
-2. Then on the destination node that vm moved, create a bridge deivce `ip link add br-test1 type bridge`
-3. Create a tap.xml file with following code
- ```
- <interface type='bridge'>
- <mac address='00:e0:4c:6a:3b:51'/>
- <source bridge='br-test1'/>
- <model type="virtio"/>
- <alias name='ua-test'/>
- </interface>
- ```
-4. Save origin pci information
-```
-$ virsh console demo-vm
-# Save origin pci information
-[root@demo-vm ~]# lshw > before
-```
-5. Hot-plug an interface `virsh attach-device demo-vm tap.xml-backup --live --config`
-6. Dumpxml of demo-vm
-```
-<domain type='kvm' id='226'>
- <name>demo-vm</name>
- <uuid>cc74b867-3fb4-5e4f-bbce-33df21a89416</uuid>
- <metadata>
- <kubevirt xmlns="http://kubevirt.io">
- <uid>79db3d82-ce8f-44e8-96a5-940cc37c0064</uid>
- <graceperiod>
- <deletionGracePeriodSeconds>30</deletionGracePeriodSeconds>
- </graceperiod>
- </kubevirt>
- </metadata>
- <maxMemory slots='16' unit='KiB'>134217728</maxMemory>
- <memory unit='KiB'>1048576</memory>
- <currentMemory unit='KiB'>1048576</currentMemory>
- <vcpu placement='static' current='1'>128</vcpu>
- <iothreads>1</iothreads>
- <resource>
- <partition>/machine</partition>
- </resource>
- <sysinfo type='smbios'>
- <system>
- <entry name='uuid'>cc74b867-3fb4-5e4f-bbce-33df21a89416</entry>
- </system>
- </sysinfo>
- <os>
- <type arch='x86_64' machine='pc-q35-rhel8.6.0'>hvm</type>
- <smbios mode='sysinfo'/>
- </os>
- <features>
- <acpi/>
- </features>
- <cpu mode='custom' match='exact' check='full'>
- <model fallback='forbid'>Skylake-Server-IBRS</model>
- <vendor>Intel</vendor>
- <topology sockets='128' dies='1' cores='1' threads='1'/>
- <feature policy='require' name='ss'/>
- <feature policy='require' name='vmx'/>
- <feature policy='require' name='pdcm'/>
- <feature policy='require' name='hypervisor'/>
- <feature policy='require' name='tsc_adjust'/>
- <feature policy='require' name='clflushopt'/>
- <feature policy='require' name='umip'/>
- <feature policy='require' name='pku'/>
- <feature policy='require' name='md-clear'/>
- <feature policy='require' name='stibp'/>
- <feature policy='require' name='arch-capabilities'/>
- <feature policy='require' name='ssbd'/>
- <feature policy='require' name='xsaves'/>
- <feature policy='require' name='ibpb'/>
- <feature policy='require' name='ibrs'/>
- <feature policy='require' name='amd-stibp'/>
- <feature policy='require' name='amd-ssbd'/>
- <feature policy='require' name='skip-l1dfl-vmentry'/>
- <feature policy='require' name='pschange-mc-no'/>
- <feature policy='disable' name='mpx'/>
- <numa>
- <cell id='0' cpus='0-127' memory='1048576' unit='KiB'/>
- </numa>
- </cpu>
- <clock offset='utc'/>
- <on_poweroff>destroy</on_poweroff>
- <on_reboot>restart</on_reboot>
- <on_crash>destroy</on_crash>
- <devices>
- <emulator>/usr/libexec/qemu-kvm</emulator>
- <disk type='network' device='disk' model='virtio-non-transitional'>
- <driver name='qemu' type='raw' error_policy='stop' discard='unmap'/>
- <auth username='rbd-provisioner'>
- <secret type='ceph' uuid='8fedf300-282c-4531-a66d-ca2691aaa88b'/>
- </auth>
- <source protocol='rbd' name='demo-pool/vol-5e83bed9-a2a3-11ed-bee4-3cfdfee07278' index='2'>
- <host name='xx.xx.xx.xx' port='6789'/>
- <host name='xx.xx.xx.xx' port='6789'/>
- <host name='xx.xx.xx.xx' port='6789'/>
- </source>
- <target dev='vda' bus='virtio'/>
- <boot order='1'/>
- <alias name='ua-bootdisk'/>
- <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
- </disk>
- <disk type='file' device='disk' model='virtio-non-transitional'>
- <driver name='qemu' type='raw' cache='writethrough' error_policy='stop' discard='unmap'/>
- <source file='/var/run/kubevirt-ephemeral-disks/cloud-init-data/demo-vm/configdrive.iso' index='1'/>
- <backingStore/>
- <target dev='vdb' bus='virtio'/>
- <alias name='ua-cloudinitdisk'/>
- <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
- </disk>
- <controller type='usb' index='0' model='none'>
- <alias name='usb'/>
- </controller>
- <controller type='scsi' index='0' model='virtio-non-transitional'>
- <alias name='scsi0'/>
- <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
- </controller>
- <controller type='virtio-serial' index='0' model='virtio-non-transitional'>
- <alias name='virtio-serial0'/>
- <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
- </controller>
- <controller type='pci' index='0' model='pcie-root'>
- <alias name='pcie.0'/>
- </controller>
- <controller type='pci' index='1' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='1' port='0x10'/>
- <alias name='pci.1'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0' multifunction='on'/>
- </controller>
- <controller type='pci' index='2' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='2' port='0x11'/>
- <alias name='pci.2'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/>
- </controller>
- <controller type='pci' index='3' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='3' port='0x12'/>
- <alias name='pci.3'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x2'/>
- </controller>
- <controller type='pci' index='4' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='4' port='0x13'/>
- <alias name='pci.4'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x3'/>
- </controller>
- <controller type='pci' index='5' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='5' port='0x14'/>
- <alias name='pci.5'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x4'/>
- </controller>
- <controller type='pci' index='6' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='6' port='0x15'/>
- <alias name='pci.6'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x5'/>
- </controller>
- <controller type='pci' index='7' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='7' port='0x16'/>
- <alias name='pci.7'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x6'/>
- </controller>
- <controller type='pci' index='8' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='8' port='0x18'/>
- <alias name='pci.8'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0' multifunction='on'/>
- </controller>
- <controller type='pci' index='9' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='9' port='0x19'/>
- <alias name='pci.9'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x1'/>
- </controller>
- <controller type='pci' index='10' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='10' port='0x1a'/>
- <alias name='pci.10'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x2'/>
- </controller>
- <controller type='pci' index='11' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='11' port='0x1b'/>
- <alias name='pci.11'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x3'/>
- </controller>
- <controller type='pci' index='12' model='pcie-root-port'>
- <model name='pcie-root-port'/>
- <target chassis='12' port='0x1c'/>
- <alias name='pci.12'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x4'/>
- </controller>
- <controller type='sata' index='0'>
- <alias name='ide'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
- </controller>
- <interface type='ethernet'>
- <mac address='00:00:00:6a:d3:bc'/>
- <target dev='e6250550b78a43a' managed='yes'/>
- <model type='virtio'/>
- <mtu size='1500'/>
- <alias name='ua-attachnet1'/>
- <rom enabled='no'/>
- <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
- </interface>
- <interface type='bridge'>
- <mac address='00:e0:4c:6a:3b:51'/>
- <source bridge='br-test1'/>
- <target dev='vnet5'/>
- <model type='virtio'/>
- <alias name='ua-test'/>
- <address type='pci' domain='0x0000' bus='0x07' slot='0x00' function='0x0'/>
- </interface>
- <serial type='pty'>
- <source path='/dev/pts/31'/>
- <log file='/var/log/vm/79db3d82-ce8f-44e8-96a5-940cc37c0064/console.log' append='off'/>
- <target type='isa-serial' port='0'>
- <model name='isa-serial'/>
- </target>
- <alias name='serial0'/>
- </serial>
- <console type='pty' tty='/dev/pts/31'>
- <source path='/dev/pts/31'/>
- <log file='/var/log/vm/79db3d82-ce8f-44e8-96a5-940cc37c0064/console.log' append='off'/>
- <target type='serial' port='0'/>
- <alias name='serial0'/>
- </console>
- <channel type='unix'>
- <source mode='bind' path='/var/lib/libvirt/qemu/channel/target/domain-226-demo-vm/org.qemu.guest_agent.0'/>
- <target type='virtio' name='org.qemu.guest_agent.0' state='connected'/>
- <alias name='channel0'/>
- <address type='virtio-serial' controller='0' bus='0' port='1'/>
- </channel>
- <input type='mouse' bus='ps2'>
- <alias name='input0'/>
- </input>
- <input type='keyboard' bus='ps2'>
- <alias name='input1'/>
- </input>
- <graphics type='vnc' port='5920' autoport='yes' listen='0.0.0.0'>
- <listen type='address' address='0.0.0.0'/>
- </graphics>
- <audio id='1' type='none'/>
- <video>
- <model type='vga' vram='16384' heads='1' primary='yes'/>
- <alias name='video0'/>
- <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
- </video>
- <memballoon model='virtio-non-transitional'>
- <alias name='balloon0'/>
- <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
- </memballoon>
- </devices>
- <seclabel type='dynamic' model='dac' relabel='yes'>
- <label>+107:+107</label>
- <imagelabel>+107:+107</imagelabel>
- </seclabel>
-</domain>
-```
-7. Console to vm and check pci
-```
-$ virsh console demo-vm
-# no additional nic found in `ip a` list
-[root@demo-vm ~]# ip a
-# Compare pci
-[root@demo-vm ~]# lshw > after
-# instead of a virtio network pci i saw a virtio SCSI is created
-[root@demo-vm ~]# diff before after
-# output
- *-scsi
- description: SCSI storage controller
- product: Virtio SCSI
- vendor: Red Hat, Inc.
- physical id: 0
- bus info: pci@0000:02:00.0
- version: 01
- width: 64 bits
- clock: 33MHz
- capabilities: scsi msix pm pciexpress bus_master cap_list
- configuration: driver=virtio-pci latency=0
- resources: irq:22 memory:fe600000-fe600fff memory:fc400000-fc403fff
-```
-Additional information:
-