Return-path: Received: from ecemailfilter.ece.umd.edu ([129.2.90.4]:46758 "EHLO mailfilter.ece.umd.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752607AbdGKMci (ORCPT ); Tue, 11 Jul 2017 08:32:38 -0400 Received: from mail-qk0-f197.google.com (mail-qk0-f197.google.com [209.85.220.197]) by mailfilter.ece.umd.edu with ESMTP id nDhCHd69eyl17daO for ; Tue, 11 Jul 2017 08:21:28 -0400 (EDT) Received: by mail-qk0-f197.google.com with SMTP id a195so62433332qkb.13 for ; Tue, 11 Jul 2017 05:21:28 -0700 (PDT) Date: Tue, 11 Jul 2017 08:21:25 -0400 From: "S. Gilles" To: Arend van Spriel , Franky Lin , Hante Meuleman , Chi-Hsien Lin , Wright Feng , linux-wireless@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com, brcm80211-dev-list@cypress.com Subject: [BUG] brcmfmac: BRCM4354 cannot connect since commit 270a6c1f65 Message-ID: <20170711122125.5epcjhcyneiwxyse@number18.npnth.net> (sfid-20170711_143244_060146_4D236A3B) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi, I have an Asus C201, which comes with a BRCM4354 (SDIO). On boot, dmesg shows brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Apr 8 2015 13:03:52 version 7.35.79.79 (r547158) FWID 01-7f29997a Since 270a6c1f65fe68a28a5d39cd405592c550b496c7 (brcmfmac: rework headroom check in .start_xmit()), the machine cannot connect to any wireless network. I can fully reproduce this, and have bisected it; I'm mailing this from the commit before: a833f3d4de. I only have access to WPA2 networks, in case it matters. The relevent part of dmesg from a bad boot is [ ... ] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ +0.000767] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 [ +0.905426] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 [Jul11 11:02] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 [ +0.983406] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 [Jul11 11:03] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 [Jul11 11:05] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 [ +0.981930] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 [Jul11 11:07] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 [Jul11 11:09] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 [ +0.698295] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 ... (etc.) [ +0.918891] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 [Jul11 11:18] dwmmc_rockchip ff0d0000.dwmmc: Successfully tuned phase to 204 [ +12.545604] brcmfmac: brcmf_proto_bcdc_hdrpull: wlan0: non-BCDC packet received, flags 0x0 ... (etc.) meanwhile, wpa_cli is full of output like ... <3>CTRL-EVENT-NETWORK-NOT-FOUND <3>CTRL-EVENT-SCAN-STARTED <3>CTRL-EVENT-SCAN-RESULTS <3>CTRL-EVENT-SSID-REENABLED id=1 ssid="{known SSID}" <3>Trying to associate with SSID '{known SSID}' <3>Associated with {MAC} <3>CTRL-EVENT-SUBNET-STATUS-UPDATE status=0 <3>Authentication with {MAC} timed out. <3>CTRL-EVENT-DISCONNECTED bssid={MAC} reason=3 locally_generated=1 <3>WPA: 4-Way Handshake failed - pre-shared key may be incorrect <3>CTRL-EVENT-SID-TEMP-DISABLED id=1 ssid="{known SSID}" auth_failures=26 duration=120 reason=WRONG_KEY <3>CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD <3>CTRL-EVENT-SCAN-STARTED <3>CTRL-EVENT-SCAN-RESULTS <4>Failed to initiate sched scan <3>CTRL-EVENT-NETWORK-NOT-FOUND ... The `non-BCDC packet received' messages in dmesg occur just before the `timed out' messages in wpa_cli. Please let me know if more information is needed of if there are patches I should test. -- S. Gilles