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 EAD77C433EF for ; Sat, 4 Dec 2021 10:26:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353958AbhLDKaO (ORCPT ); Sat, 4 Dec 2021 05:30:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234334AbhLDKaN (ORCPT ); Sat, 4 Dec 2021 05:30:13 -0500 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [IPv6:2a01:488:42:1000:50ed:8234::]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E9540C061751; Sat, 4 Dec 2021 02:26:47 -0800 (PST) Received: from [77.23.61.74] (helo=[192.168.66.200]); authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1mtSFi-0007Rk-5G; Sat, 04 Dec 2021 11:26:46 +0100 Message-ID: <73b325e3-d5d9-f768-9033-3aa0d3683e47@leemhuis.info> Date: Sat, 4 Dec 2021 11:26:45 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.0 Subject: Re: Regression: plugging in USB scanner breaks all USB functionality Content-Language: en-BS To: Greg KH Cc: regressions@lists.linux.dev, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org References: <35f7428b39f996c793f5b4a6a314772681c73d7a.camel@apache.org> <3eb9c3f8-6bca-da08-47ec-af2a02d6a485@leemhuis.info> From: Thorsten Leemhuis In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-bounce-key: webpack.hosteurope.de;regressions@leemhuis.info;1638613608;142a686f; X-HE-SMSGID: 1mtSFi-0007Rk-5G Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04.12.21 11:03, Greg KH wrote: > On Fri, Dec 03, 2021 at 06:24:52PM +0100, Thorsten Leemhuis wrote: >> On 02.12.21 16:13, Thorsten Leemhuis wrote: >>> Hi, this is your Linux kernel regression tracker speaking. >>> >>> Thanks for the report. >>> >>> Top-posting for once, to make this easy accessible to everyone. >>> >>> FWIW, 5.14 is EOL, so it might not be fixed there. As the problem is in >>> newer kernels as well, I suspect that it was a change applies to 5.15 or >>> 5.16 that got backported. Maybe one of the developers might have an idea >>> which commit causes it. If that's not the case you likely should try a >>> bisection to find the culprit. Performing one between v5.14.11..v5.14.14 >>> is likely the easiest and quickest way to find it. >>> >>> To be sure this issue doesn't fall through the cracks unnoticed, I'm >>> adding it to regzbot, my Linux kernel regression tracking bot: >>> >>> #regzbot ^introduced v5.14.11..v5.14.14 >>> #regzbot title usb: plugging in USB scanner breaks all USB functionality >>> [regression present in 5.15.2 und 5.16-rc3, too] >>> #regzbot ignore-activity >> >> #regzbot introduced ff0e50d3564f >> #regzbot fixed-by 385b5b09c3546c87cfb730b76abe5f8d73c579a2 > > Odd, where did that git commit id come from? I don't see it in > linux-next or Linus's tree. > > confused, Yeah, sorry, after sending that mail it occurred to me that this wasn't ideal and hard to follow. I got it from here: https://lore.kernel.org/lkml/a649395b-0b91-a0d2-c510-ea8ec4aef917@linux.intel.com/ I already decided that next time something like this comes up I'll reply to the mail with the details instead (with proper quoting) to make this easier to follow. Reading that message again I suspect that I might have been a bit quick as well, as this might not be the commit id this ends up with when it gets merged: I now see that this is likely a developers tree and not one that gets indirectly merged. Sorry, I'll manually keep an eye on things to fix this up once that patch gets its real it. Ciao, Thorsten BTW, while at it: #regzbot monitor https://lore.kernel.org/linux-usb/20211126122340.1193239-2-mathias.nyman@linux.intel.com/