From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-gw1-out.broadcom.com ([216.31.210.62]:6494 "EHLO mail-gw1-out.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752966AbbFQSiz (ORCPT ); Wed, 17 Jun 2015 14:38:55 -0400 Message-ID: <5581BEBA.1080500@broadcom.com> (sfid-20150617_203859_250299_EDE6A7D7) Date: Wed, 17 Jun 2015 20:38:50 +0200 From: Arend van Spriel MIME-Version: 1.0 To: Dan Williams CC: "linux-wireless@vger.kernel.org" Subject: creating ap interface Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi Dan, When I create an AP interface using iw, it is followed by a change interface back to managed mode. I added a WARN_ON to see where it came from and it turns out to be the NetworkManager. However, I had disabled wifi as you suggested on the mailing list once. What is your take on this: bug or intentional? Regards, Arend [195312.837736] brcmfmac: brcmf_cfg80211_add_iface enter: wl5ap type 3 [195312.844033] brcmfmac: brcmf_ap_add_vif Adding vif "wl5ap" [195312.849525] brcmfmac: brcmf_alloc_vif allocating virtual interface (size=3136) [195312.856842] brcmfmac: brcmf_fil_bsscfg_data_set ifidx=0, bssidx=0, name=bsscfg:ssid, len=40 [195312.865276] brcmutil: data [195312.868070] 00000000: 02 00 00 00 05 00 00 00 73 73 69 64 32 00 00 00 ........ssid2... [195312.876187] 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [195312.884301] 00000020: 00 00 00 00 00 00 00 00 ........ [195312.891725] brcmfmac: brcmf_sdio_bus_txctl Enter [195312.896466] brcmfmac: brcmf_sdio_dpc Enter [195312.900663] brcmfmac: brcmf_sdio_kso_control Enter: on=1 [195312.910548] brcmfmac: brcmf_sdio_isr Enter [195312.914877] brcmfmac: brcmf_sdio_tx_ctrlframe Enter [195312.919943] brcmfmac: brcmf_sdio_dpc Enter [195312.920022] brcmfmac: brcmf_sdio_bus_rxctl Enter [195312.928967] brcmfmac: brcmf_sdio_isr Enter [195312.933282] brcmfmac: brcmf_sdio_dpc Dongle reports CHIPACTIVE [195312.939220] brcmfmac: brcmf_sdio_readframes Enter [195312.944099] brcmfmac: brcmf_sdio_read_control Enter [195312.949234] brcmfmac: brcmf_sdio_bus_rxctl resumed on rxctl frame, got 68 expected 68 [195312.949310] brcmfmac: brcmf_fweh_event_worker event IF (54) ifidx 1 bsscfg 2 addr 00:90:4c:70:43:54 [195312.949312] brcmfmac: brcmf_fweh_event_worker version 2 flags 0 status 0 reason 0 [195312.949314] brcmutil: event payload, len=5 [195312.949316] 00000000: 01 01 00 02 01 ..... [195312.949318] brcmfmac: brcmf_fweh_handle_if_event action: 1 idx: 1 bsscfg: 2 flags: 0 role: 1 [195312.949320] brcmfmac: brcmf_fweh_handle_if_event adding wl0.2 (00:90:4c:70:43:54) [195312.949322] brcmfmac: brcmf_add_if Enter, idx=2, ifidx=1 [195312.949323] brcmfmac: brcmf_add_if allocate netdev interface [195312.949333] brcmfmac: brcmf_add_if ==== pid:135f, if:wl0.2 (00:90:4c:70:43:54) created === [195312.949336] brcmfmac: brcmf_fws_macdesc_init enter: desc ffff8800bb798b00 ea=00:90:4c:70:43:54, ifidx=1 [195312.949338] brcmfmac: brcmf_fws_add_interface added MACIF:1 [195312.949341] brcmfmac: brcmf_notify_vif_event Enter: action 1 flags 0 ifidx 1 bsscfg 2 [195312.949403] brcmfmac: brcmf_sdio_dpc Enter [195312.970325] brcmfmac: brcmf_sdio_kso_control Enter: on=0 [195313.054361] brcmfmac: brcmf_net_attach Enter, idx=2 mac=00:90:4c:70:43:54 [195313.061537] brcmfmac: brcmf_netdev_get_stats Enter, idx=2 [195313.067170] brcmfmac: brcmf_net_attach wl5ap: Broadcom Dongle Host Driver [195313.074637] brcmfmac: brcmf_netdev_get_stats Enter, idx=0 [195313.080149] brcmfmac: brcmf_netdev_get_stats Enter, idx=0 [195313.085653] brcmfmac: brcmf_netdev_get_stats Enter, idx=2 [195313.091877] brcmfmac: brcmf_netdev_get_stats Enter, idx=0 [195313.097400] brcmfmac: brcmf_netdev_get_stats Enter, idx=0 [195313.102934] brcmfmac: brcmf_netdev_get_stats Enter, idx=2 [195313.108825] brcmfmac: brcmf_netdev_get_stats Enter, idx=0 [195313.114322] brcmfmac: brcmf_netdev_get_stats Enter, idx=0 [195313.119835] brcmfmac: brcmf_netdev_get_stats Enter, idx=2 [195313.125593] brcmfmac: brcmf_netdev_get_stats Enter, idx=0 [195313.131117] brcmfmac: brcmf_netdev_get_stats Enter, idx=0 [195313.136610] brcmfmac: brcmf_netdev_get_stats Enter, idx=2 [195313.142185] brcmfmac: brcmf_cfg80211_change_iface Enter, idx=2, type=2 [195313.148804] ------------[ cut here ]------------ [195313.153520] WARNING: CPU: 1 PID: 1398 at drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c:864 brcmf_cfg80211_change_iface+0x2a9/0x2d0 [brcmfmac]() [195313.166897] Modules linked in: brcmfmac(O) brcmutil(O) sdhci_pci sdhci cfg80211 nfsv3 nfs_acl nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 iptable_mangle xt_tcpudp ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables autofs4 nfs bridge stp llc lockd grace sunrpc fscache dell_wmi sparse_keymap snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic dell_laptop pl2303 usbserial nouveau dcdbas snd_hda_intel snd_hda_controller i8k snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device coretemp crc32c_intel snd_timer mxm_wmi intel_agp microcode serio_raw ttm drm_kms_helper intel_gtt lpc_ich snd drm i2c_algo_bit intel_ips agpgart soundcore mfd_core video mmc_block e1000e ptp firewire_ohci psmouse ahci libahci firewire_core mmc_core crc_itu_t pps_core [last unloaded: cfg80211] [195313.247913] CPU: 1 PID: 1398 Comm: NetworkManager Tainted: G W O 4.1.0-rc6-wl-testing-x64-00002-gc37b3da #1 [195313.258686] Hardware name: Dell Inc. Latitude E6410/07XJP9, BIOS A07 02/15/2011 [195313.266107] ffffffffa0edc918 ffff8800cafef988 ffffffff8161259f 0000000000000001 [195313.273669] 0000000000000000 ffff8800cafef9c8 ffffffff810537ca ffff8800c5483000 [195313.281228] 0000000000000002 ffff8800c5483000 ffff8800b9c36000 ffff8800b9cc0280 [195313.288787] Call Trace: [195313.291325] [] dump_stack+0x45/0x57 [195313.296581] [] warn_slowpath_common+0x8a/0xc0 [195313.302669] [] warn_slowpath_null+0x1a/0x20 [195313.308617] [] brcmf_cfg80211_change_iface+0x2a9/0x2d0 [brcmfmac] [195313.316460] [] cfg80211_change_iface+0x1a4/0x3f0 [cfg80211] [195313.323801] [] ? __cfg80211_wdev_from_attrs+0x36/0x1a0 [cfg80211] [195313.331630] [] nl80211_set_interface+0x157/0x230 [cfg80211] [195313.338973] [] genl_family_rcv_msg+0x1a5/0x3d0 [195313.345148] [] ? genl_family_rcv_msg+0x3d0/0x3d0 [195313.351513] [] genl_rcv_msg+0x91/0xd0 [195313.356907] [] netlink_rcv_skb+0xc1/0xe0 [195313.362596] [] genl_rcv+0x2c/0x40 [195313.367644] [] netlink_unicast+0x15b/0x240 [195313.373502] [] netlink_sendmsg+0x345/0x3c0 [195313.379335] [] sock_sendmsg+0x3d/0x50 [195313.384765] [] ___sys_sendmsg+0x28f/0x2a0 [195313.390507] [] ? ___sys_recvmsg+0x161/0x1f0 [195313.396456] [] ? sysctl_head_finish+0x49/0x50 [195313.402546] [] ? proc_put_long+0x90/0x90 [195313.408238] [] ? proc_sys_call_handler+0x79/0xc0 [195313.414588] [] ? fsnotify+0x2e6/0x410 [195313.420020] [] ? lockref_put_or_lock+0x58/0x80 [195313.426196] [] ? __fget_light+0x25/0x70 [195313.431799] [] __sys_sendmsg+0x42/0x80 [195313.437281] [] SyS_sendmsg+0x12/0x20 [195313.442749] [] system_call_fastpath+0x12/0x6a [195313.448839] ---[ end trace a6c411e9e8c26904 ]--- [195313.453573] brcmf_cfg80211_change_iface: iface validation failed: err=-16