other: 0.978 debug: 0.971 PID: 0.966 permissions: 0.960 device: 0.957 semantic: 0.957 graphic: 0.956 KVM: 0.936 performance: 0.933 socket: 0.925 files: 0.918 boot: 0.906 network: 0.884 vnc: 0.864 migrate: add tls option in virsh, migrate failed version: libvirt-3.4.0 + qemu-2.9.90(latest) domain: any step: 1. generate tls certificate in /etc/pki/libvirt-migrate 2. start vm 3. migrate vm, cmdline: virsh migrate rh7.1-3 --live --undefinesource --persistent --verbose --tls qemu+ssh://IP/system 4. then migrate failed and reported: Migration: [ 64 %]error: internal error: qemu unexpectedly closed the monitor: Domain pid=5288, libvirtd pid=49634 kvm: warning: CPU(s) not present in any NUMA nodes: 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 kvm: warning: All CPU(s) up to maxcpus should be described in NUMA config kvm: error while loading state section id 2(ram) kvm: load of migration failed: Input/output error other: Analysis qemu code and debug: #0 ram_save_page (f=0x55ca8be370e0, pss=0x7fefdfc7b9a0, last_stage=false, bytes_transferred=0x55ca885ec1d8) #1 0x000055ca87b00b21 in ram_save_target_page (ms=0x55ca885b8d80, f=0x55ca8be370e0, pss=0x7fefdfc7b9a0, last_stage=false, bytes_transferred=0x55ca885ec1d8, dirty_ram_abs=0) #2 0x000055ca87b00bda in ram_save_host_page (ms=0x55ca885b8d80, f=0x55ca8be370e0, pss=0x7fefdfc7b9a0, last_stage=false, bytes_transferred=0x55ca885ec1d8, dirty_ram_abs=0) #3 0x000055ca87b00d39 in ram_find_and_save_block (f=0x55ca8be370e0, last_stage=false, bytes_transferred=0x55ca885ec1d8) #4 0x000055ca87b020b8 in ram_save_iterate (f=0x55ca8be370e0, opaque=0x0) #5 0x000055ca87b07a9a in qemu_savevm_state_iterate (f=0x55ca8be370e0, postcopy=false) #6 0x000055ca87e404e5 in migration_thread (opaque=0x55ca885b8d80) This is the qemu bug tracker here. Please report libvirt bugs to the libvirt project instead (see http://libvirt.org/bugs.html). Thanks! with libvirt test, qemu report error, this is problem for qemu,so report here! But then please follow this recommendation from http://www.qemu.org/contribute/report-a-bug/ : "Reproduce the problem directly with a QEMU command-line. Avoid frontends and management stacks, to ensure that the bug is in QEMU itself and not in a frontend." So can you reproduce the problem by starting QEMU directly from the command line? ok, thank you! chan: The backtrace you show there - how did you capture that? Was that from a core dump ? If so then please do a bt full to get more detail. Even if you can't reproduce it with qemu without libvirt I'd be interested to debug it - but the libvirt logs from /var/log/libvirt/qemu/.... on both the source and the destination would help. [Expired for QEMU because there has been no activity for 60 days.]