Am 12.06.15 um 11:43 schrieb Dominique Ramaekers: > Did you shutdown the guest before making this change?

Yes. I even can't set this setting while the machine is powered off. Here ist the machines xml. <domain type='kvm'> <name>changed</name> <uuid>c71f66b3-2fd1-42f0-b8be-42999857eb95</uuid> <memory unit='KiB'>4194304</memory> <currentMemory unit='KiB'>2097152</currentMemory> <vcpu placement='static'>4</vcpu> <resource> <partition>/machine</partition> </resource> <os> <type arch='x86_64' machine='pc-0.14'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <cpu mode='host-model'> <model fallback='allow'/> </cpu> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='writeback' io='threads'/> <source file='/var/lib/libvirt/images/1.qcow2'/> <target dev='vda' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='writethrough' io='threads'/> <source file='/var/lib/libvirt/images/nfs.qcow2'/> <target dev='vdb' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </disk> <controller type='virtio-serial' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </controller> <controller type='usb' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> </controller> <controller type='pci' index='0' model='pci-root'/> <interface type='network'> <mac address='52:54:00:18:75:ef'/> <source network='routed'/> <model type='virtio'/> <filterref filter='filter-changed'> <parameter name='IP' value='changed'/> </filterref> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <channel type='unix'> <source mode='bind' path='/var/lib/libvirt/qemu/f16x86_64.agent'/> <target type='virtio' name='org.qemu.guest_agent.0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> <input type='mouse' bus='ps2'/> <input type='keyboard' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1'> <listen type='address' address='127.0.0.1'/> </graphics> <video> <model type='cirrus' vram='16384' heads='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </memballoon> </devices> <seclabel type='none' model='none'/> </domain> cheers t. > -----Oorspronkelijk bericht----- > Van: Thomas Stein [mailto:himbeere@meine-oma.de] > Verzonden: vrijdag 12 juni 2015 11:32 > Aan: libvirt-users(a)redhat.com > Onderwerp: [libvirt-users] <vcpu placement='static' current='N'>M</vcpu> > > Hello. > > I seem to be to stupid to configure vcpu hotplugging on one of my machines. Whenever i set: > > <vcpu placement='static' current='4'>4</vcpu> > > and save this setting, this setting is undone by libvirt. It jumps back to: > > <vcpu placement='static'>4</vcpu> > > I'm confused now. Someone has an idea what's going on here? Any hints are really appreciated. > > cheers > t. > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > _______________________________________________ libvirt-users mailing list libvirt-users(a)redhat.com https://www.redhat.com/mailman/listinfo/libvirt-users