From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33482C7619A for ; Wed, 5 Apr 2023 11:59:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237382AbjDEL71 (ORCPT ); Wed, 5 Apr 2023 07:59:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45488 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237007AbjDEL70 (ORCPT ); Wed, 5 Apr 2023 07:59:26 -0400 Received: from sonata.ens-lyon.org (sonata.ens-lyon.org [140.77.166.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F1591FC9 for ; Wed, 5 Apr 2023 04:59:23 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by sonata.ens-lyon.org (Postfix) with ESMTP id 1216820109; Wed, 5 Apr 2023 13:59:22 +0200 (CEST) Received: from sonata.ens-lyon.org ([127.0.0.1]) by localhost (sonata.ens-lyon.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id lNj6Y5oyOqm2; Wed, 5 Apr 2023 13:59:21 +0200 (CEST) Received: from eyak.inrialpe.fr (82-64-217-88.subs.proxad.net [82.64.217.88]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by sonata.ens-lyon.org (Postfix) with ESMTPSA id E497F200EC; Wed, 5 Apr 2023 13:59:21 +0200 (CEST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by eyak.inrialpe.fr (Postfix) with ESMTP id 6185C1A12C6; Wed, 5 Apr 2023 13:59:21 +0200 (CEST) Message-ID: Date: Wed, 5 Apr 2023 13:59:21 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.1.22) Gecko/20091109 Lightning/0.8 Thunderbird/2.0.0.22 Mnenhy/0.7.5.0 Content-Language: fr, en-US To: James , linux-wireless@vger.kernel.org References: From: Vincent Danjean Subject: Re: Bug report about ath9k In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Hi, Le 22/02/2023 à 01:32, James a écrit : > Try disabling power saving. > w dev wlanX set power_save off > Maybe that command. For the record, this did not change anything. The problem seemed triggered by an external event : no log during the week I was not at home (but the server was still online and used for regular backup, asterisk, etc. with a few domotic object still connected via wifi) However, when present, I saw an error just after midnight nearly all days (with some few exceptions) and sometimes at other times (5 PM, 8 AM, etc.) I did not succeeded at finding the external cause. But I "fixed" the problem by adding the "iommu=pt" kernel parameter. As I'm using the network card on the host, if I'm correct, this parameter just tells linux to *not* use iommu for this device in this case. So, I think that the ath9k has a bug wrt iommu. If you ever want I tried some things (debug, new versions, etc.), I can do it. Just tell me. I did not tried to manager the device in a VM (that would require the use of iommu for this device) Regards Vincent