unregister_netdevice: waiting for wlan0 to become free. Usage count = 3
ref_tracker: netdev@ffff888079ac4610 has 1/1 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4346 [inline]
     netdev_hold include/linux/netdevice.h:4375 [inline]
     ib_device_set_netdev+0x31f/0x6d0 drivers/infiniband/core/device.c:2216
     siw_device_create drivers/infiniband/sw/siw/siw_main.c:320 [inline]
     siw_newlink+0x405/0xd70 drivers/infiniband/sw/siw/siw_main.c:426
     nldev_newlink+0x4a5/0x5a0 drivers/infiniband/core/nldev.c:1796
     rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:-1 [inline]
     rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
     rdma_nl_rcv+0x6ab/0x980 drivers/infiniband/core/netlink.c:259
     netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
     netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346
     netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
     sock_sendmsg_nosec net/socket.c:714 [inline]
     __sock_sendmsg+0x219/0x270 net/socket.c:729
     ____sys_sendmsg+0x505/0x830 net/socket.c:2614
     ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
     __sys_sendmsg net/socket.c:2700 [inline]
     __do_sys_sendmsg net/socket.c:2705 [inline]
     __se_sys_sendmsg net/socket.c:2703 [inline]
     __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
     do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
     do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
     entry_SYSCALL_64_after_hwframe+0x77/0x7f