On 06/13/2018 05:00 AM, Bo YU wrote: > Hello, > The libvirt is a cool tool, i like it. Thank you :-) > > Here is output of strace: > Nothing odd looking here. Can you run 'virsh list', then attach gdb to libvirtd and run 't a a bt' and share the output please? I wonder if this is the bug that qemu fixed just recently - are you running qemu from git too? There was a problem where libvirt deadlocked when fetching qemu capabilities (so no virsh list, virsh start, .. was possible). Anyway, this can be confirmed by gdb output. Michal -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list