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 X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 7D243C433E0 for ; Sat, 20 Feb 2021 17:14:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4558364E5F for ; Sat, 20 Feb 2021 17:14:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229838AbhBTRNn (ORCPT ); Sat, 20 Feb 2021 12:13:43 -0500 Received: from wtarreau.pck.nerim.net ([62.212.114.60]:49901 "EHLO 1wt.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229766AbhBTRNm (ORCPT ); Sat, 20 Feb 2021 12:13:42 -0500 Received: (from willy@localhost) by pcw.home.local (8.15.2/8.15.2/Submit) id 11KH60NN007214; Sat, 20 Feb 2021 18:06:00 +0100 Date: Sat, 20 Feb 2021 18:06:00 +0100 From: Willy Tarreau To: Greg Kroah-Hartman Cc: Jari Ruusu , Jari Ruusu , Scott Branden , Linux ARM , LKML , BCM Kernel Feedback Subject: Re: 5.10 LTS Kernel: 2 or 6 years? Message-ID: <20210220170600.GB7159@1wt.eu> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Feb 20, 2021 at 05:05:14PM +0100, Greg Kroah-Hartman wrote: > On Sat, Feb 20, 2021 at 01:29:21PM +0000, Jari Ruusu wrote: > > On Friday, February 19, 2021 5:23 PM, Jari Ruusu wrote: > > > My contribution here is trying to point you guys to right direction. > > > > I have been able to narrow the beginning of the problem to these kernels: > > 4.14.188 ... 4.14.202 > > > > Same "fix" that went info 4.14.y is also bugging 4.19.y kernels. > > Great, any chance you can narrow this down to the commit itself? What is strnage is that there was no iwlwifi driver change in this interval. Only iwlegacy (don't know if this one was used instead). Note, my laptop uses iwlwifi as well. I've met random issues with it a year ago when I started to use wifi, such as wifi randomly freezing during audio meetings, and automatically fixing itself after 1 minute. I also found that a down-up cycle on the interface would fix it. It happened less than once a day so it was not easy to diagnose, and given how crappy all wifi chips are, I naturally attributed this to the hardware. But since I upgraded to 5.4 months ago, I don't remember having met that issue anymore, so it was likely related to the driver. All I can say is that 4.19.68 was exhibiting this issue. I can't say for older ones because I didn't use wifi before. Just my two cents, Willy