Return-path: Received: from mail-wm0-f41.google.com ([74.125.82.41]:33127 "EHLO mail-wm0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751770AbbLXRXX (ORCPT ); Thu, 24 Dec 2015 12:23:23 -0500 Received: by mail-wm0-f41.google.com with SMTP id p187so183669509wmp.0 for ; Thu, 24 Dec 2015 09:23:22 -0800 (PST) MIME-Version: 1.0 Date: Thu, 24 Dec 2015 18:23:22 +0100 Message-ID: (sfid-20151224_182327_543450_47CC9CE3) Subject: [BISECTED] brcmfmac issue since 4.3.0-rc3 From: Carlo Caione To: meuleman@broadcom.com Cc: arend@broadcom.com, kvalo@codeaurora.org, linux-wireless@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi Hante, I'm having an issue with my BCM43340 SDIO WiFi card on the Asus X205TA laptop and the latest firmware taken from the linux-firmware git repo with the correct nvram file in place. I bisected the issue back to commit 2b76acd "brcmfmac: Rework p2p attach, use single method for p2p dev creation." (bad commit). The problem is not always reproducible. I'd say it happens once every ten reboots. What I see is that the kernel panics at boot immediately after I see: brcmfmac: brcmf_sdio_drivestrengthinit: No SDIO Drive strength init done for chip 43340 rev 2 pmurev 20 brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout brcmfmac: brcmf_c_preinit_dcmds: Retreiving cur_etheraddr failed, -52 brcmfmac: brcmf_bus_start: failed: -52 brcmfmac: brcmf_sdio_firmware_callback: dongle is not responding brcmfmac: brcmf_sdio_dpc: failed backplane access over SDIO, halting operation brcmfmac: brcmf_sdio_dpc: failed backplane access over SDIO, halting operation With a messy trace similar to https://gist.github.com/carlocaione/06d17124a2589f3d4108 Any idea what's going on? Thanks -- Carlo Caione