Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83D69C282CB for ; Tue, 5 Feb 2019 09:37:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1B96420844 for ; Tue, 5 Feb 2019 09:37:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1280-bit key) header.d=sw1v.org header.i=@sw1v.org header.b="lMGdF+1k" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728334AbfBEJhF (ORCPT ); Tue, 5 Feb 2019 04:37:05 -0500 Received: from faith.sw1v.org ([109.74.200.146]:33190 "EHLO faith.sw1v.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725898AbfBEJhF (ORCPT ); Tue, 5 Feb 2019 04:37:05 -0500 X-Greylist: delayed 342 seconds by postgrey-1.27 at vger.kernel.org; Tue, 05 Feb 2019 04:37:04 EST DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sw1v.org; s=sw1v_02; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:MIME-Version :Date:Message-ID:From:References:Cc:To:Subject; bh=0/lVgst+lyWdF9xrRxNKNt70dhCVq/lVsFdroAJbC/A=; b=lMGdF+1kAyEXUNW+TQ70G5NteN x7exCNIPyFSXMKLG5UAhAdj3NUjsjVHobHjUcrNtK2WYjm5wqW6xyLk3NsSyFzgPgA+IYFJWk+CPo IEBMqDuNdyFeAwZAosiy7hS/Ma+Nf2LMTjh4JaNo1LmZsqni/aMQxGT3LbReHjIQwj/EgqwPLuX1+ qnqUH6al8snO3Kykw/S2bXAgHazD0aFQrQ==; Received: from [2001:8b0:ba7a:e98f:790b:795:fb14:47c5] by faith.sw1v.org (envelope-from ) with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) id 1gqx4b-0005qK-TU; Tue, 05 Feb 2019 09:31:21 +0000 Subject: Re: brcmfmac regression in 4.19 ? To: Arend Van Spriel Cc: linux-wireless References: <08b120bb-484f-4c08-30ae-bb023f484a56@redhat.com> From: Richard van der Hoff Message-ID: <4dea14ba-12f4-b787-63af-221be5ac91b6@sw1v.org> Date: Tue, 5 Feb 2019 09:31:21 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 8bit X-SMTP-SW1V-Spam-User: X-SMTP-SW1V-Spam-Level: X-SMTP-SW1V-Spam-Bar: X-SMTP-SW1V-Spam-Report: Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 12/01/2019 13:29, Arend Van Spriel wrote: > On 1/11/2019 4:34 PM, Arend Van Spriel wrote: >> - list (HTML filtering) >> >> Op vr 11 jan. 2019 16:18 schreef Hans de Goede > : >> >>     Hi, >> >>     We (Fedora) have been getting bugreports that brcmfmac wifi drops >>     out and needs a rmmod + modprobe >>     to restore functionality starting with kernel 4.19: >> >>     https://bugzilla.redhat.com/show_bug.cgi?id=1658178 >> >> >> Will look into this. Maybe it is similar to what Russell King reported. > > Probably not. The bug report above is with PCIe device. The dmesg > attached to the bug report shows user is doing system suspend/resume > over and over until the following occurs: > > [28151.874963] brcmfmac: brcmf_psm_watchdog_notify: PSM's watchdog has > fired! > [29354.351337] brcmfmac: brcmf_psm_watchdog_notify: PSM's watchdog has > fired! > > PSM is the hardware block which processes the 802.11 packets received > from firmware and passes them to the phy layer. When this watchdog barks > the firmware will end up in a trap. We do collect a devcoredump upon the > watchdog, but unfortunately that will not tell much about the failure in > the hardware block. On monday I will try to come up with a patch to > obtain more information from the device regarding this watchdog. Arend, did you manage to look any further into this? I've also noticed problems with brcmfmac dropping out since 4.19, though haven't seen any notices about PSM: https://bugzilla.kernel.org/show_bug.cgi?id=201853.