------- Comment From [email protected] 2024-11-11 04:01 EDT------- Hi fheimes, Thanks for the reply! I tried upgrading the qemu to qemu-system=1:8.2.2+ds-0ubuntu1.4 and this cpu hotplug scenario is working as expected! Here is my analysis:
HOST DETAILS: kernel: 6.8.0-48-generic qemu: QEMU emulator version 8.2.2 (Debian 1:8.2.2+ds-0ubuntu1.4) libvirt: libvirtd (libvirt) 10.0.0 Steps i tried: ON host # virsh setvcpus ubuntu 500 # virsh setvcpus ubuntu 700 error: internal error: unable to execute QEMU command 'device_add': kvmppc_cpu_realize: vcpu hotplug failed with -12 On guest: #lscpu Architecture: ppc64le Byte Order: Little Endian CPU(s): 642 On-line CPU(s) list: 0-641 Model name: POWER10 (architected), altivec supported Model: 2.0 (pvr 0080 0200) Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 642 Virtualization features: Hypervisor vendor: KVM Virtualization type: para Caches (sum of all): L1d: 20.1 MiB (642 instances) L1i: 30.1 MiB (642 instances) NUMA: NUMA node(s): 1 NUMA node0 CPU(s): 0-641 Guest is still accessible. Thanks, Anushree Mathur -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2076587 Title: cpu hotplug crashes the guest! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/2076587/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
