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v3.0.0-rc4: VM fails to start after vcpuhotunplug, managedsave sequence
VM fails to start after vcpu hot un-plug, managedsave sequence
Host info:
Kernel: 4.18.0-rc8-00002-g1236568ee3cb
qemu: commit 6ad90805383e6d04b3ff49681b8519a48c9f4410 (HEAD -> master, tag: v3.0.0-rc4)
QEMU emulator version 2.12.94 (v3.0.0-rc4-dirty)
libvirt: commit 087de2f5a3dffb27d2eeb0c50a86d5d6984e5a5e (HEAD -> master)
libvirtd (libvirt) 4.6.0
Guest Kernel: 4.18.0-rc8-00002-g1236568ee3cb
Steps to reproduce:
1. Start a guest(VM) with 2 current , 4 max vcpus
virsh start vm1
Domain vm1 started
2. Hotplug 2 vcpus
virsh setvcpus vm1 4 --live
3. Hot unplug 2 vcpus
virsh setvcpus vm1 2 --live
4. Managedsave the VM
virsh managedsave vm1
Domain vm1 state saved by libvirt
5. Start the VM ---Fails to start
virsh start vm1
error: Failed to start domain avocado-vt-vm1
error: internal error: qemu unexpectedly closed the monitor: 2018-08-08T06:27:53.853818Z qemu: Unknown savevm section or instance 'spapr_cpu' 2
2018-08-08T06:27:53.854949Z qemu: load of migration failed: Invalid argument
Testcase:
avocado run libvirt_vcpu_plug_unplug.positive_test.vcpu_set.live.vm_operate.managedsave_with_unplug --vt-type libvirt --vt-extra-params emulator_path=/usr/share/avocado-plugins-vt/bin/qemu create_vm_libvirt=yes kill_vm_libvirt=yes env_cleanup=yes smp=8 backup_image_before_testing=no libvirt_controller=virtio-scsi scsi_hba=virtio-scsi-pci drive_format=scsi-hd use_os_variant=no restore_image_after_testing=no vga=none display=nographic kernel=/home/kvmci/linux/vmlinux kernel_args='root=/dev/sda2 rw console=tty0 console=ttyS0,115200 init=/sbin/init initcall_debug' take_regular_screendumps=no --vt-guest-os JeOS.27.ppc64le
JOB ID : 1f869477ad87e7d7e7e7777f631ae08965f41a74
JOB LOG : /root/avocado/job-results/job-2018-08-08T02.42-1f86947/job.log
(1/1) type_specific.io-github-autotest-libvirt.libvirt_vcpu_plug_unplug.positive_test.vcpu_set.live.vm_operate.managedsave_with_unplug: ERROR (91.58 s)
RESULTS : PASS 0 | ERROR 1 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
JOB TIME : 95.89 s
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