unregister_netdevice: waiting for bridge0 to become free. Usage count = 2
ref_tracker: bridge0@ffff888078070620 has 1/1 users at
     dev_ifsioc+0xbfe/0xe70 net/core/dev_ioctl.c:586
     dev_ioctl+0x719/0x1340 net/core/dev_ioctl.c:783
     sock_do_ioctl+0x240/0x460 net/socket.c:1241
     sock_ioctl+0x626/0x8e0 net/socket.c:1346
     vfs_ioctl fs/ioctl.c:51 [inline]
     __do_sys_ioctl fs/ioctl.c:907 [inline]
     __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:893
     do_syscall_x64 arch/x86/entry/common.c:52 [inline]
     do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
     entry_SYSCALL_64_after_hwframe+0x77/0x7f