search for: 1132300

Hi all: I'm facing problems trying to define a bridge on Ubuntu 16.04, using libvirt 3.4.0. When I try to do: root@ubuntu-180:/tmp# virsh iface-define iface-testbr1.xml I get the following error: error: Failed to define interface from iface-testbr1.xml error: this function is not supported by the connection driver: virInterfaceDefineXML What can i do to make this function works normally?

...ED|MAP_DENYWRITE, 3, 0x1) = 0x5839000 close(3) = 0 open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\220T\1"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1207404, ...}) = 0 mmap2(NULL, 1132300, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x583a000 mmap2(0x5949000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10f) = 0x5949000 mmap2(0x594c000, 9996, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x594c000 close(3)...