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[23.128.96.18]) by mx.google.com with ESMTP id p41si6416855pfh.79.2022.01.21.00.22.11; Fri, 21 Jan 2022 00:22:23 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=cvsNU6Gk; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349499AbiARVEj (ORCPT + 99 others); Tue, 18 Jan 2022 16:04:39 -0500 Received: from mail.skyhub.de ([5.9.137.197]:46952 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245732AbiARVEd (ORCPT ); Tue, 18 Jan 2022 16:04:33 -0500 Received: from zn.tnic (dslb-088-067-202-008.088.067.pools.vodafone-ip.de [88.67.202.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 8C19A1EC0441; Tue, 18 Jan 2022 22:04:27 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1642539867; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=Bw9CAaU00kCn0djSnCEevWP1zGjAgVuyLrAZN+WrYxI=; b=cvsNU6Gklq7aV/Y6B6yyKCRI2fGLVWzjX2FclBHdkH3xWJM9nNiXsJbSYUbSzLvouK6rnd E7TQ0nYp4egHTP5bzSRnyXa5lDU3mh77UrRckbX7cIii/WfHnNWa+3tdoUS+yVA6DFK8tR Hy4BsFQOZxvrFLk8yxQLPBKJrPqisTA= Date: Tue, 18 Jan 2022 22:04:30 +0100 From: Borislav Petkov To: Tyler Hicks , Greg Kroah-Hartman , Sasha Levin Cc: Lei Wang , Tony Luck , Mauro Carvalho Chehab , Sinan Kaya , Shiping Ji , James Morse , Robert Richter , linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] EDAC/dmc520: Don't print an error for each unconfigured interrupt line Message-ID: References: <20220111163800.22362-1-tyhicks@linux.microsoft.com> <20220118152816.GA89184@sequoia> <20220118195401.GB89184@sequoia> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20220118195401.GB89184@sequoia> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 18, 2022 at 01:54:01PM -0600, Tyler Hicks wrote: > On 2022-01-18 18:28:16, Borislav Petkov wrote: > > On Tue, Jan 18, 2022 at 09:28:16AM -0600, Tyler Hicks wrote: > > > KERN_ERR messages trip log scanners and cause concern that the > > > kernel/hardware is not configured or working correctly. They also add a > > > little big of ongoing stress into kernel maintainer's lives, as we > > > prepare and test kernel updates, since they show up as red text in > > > journalctl output that we have to think about regularly. Multiple > > > KERN_ERR messages, 8 in this case, can also be considered a little worse > > > than a single error message. > > > > It sounds to me like you wanna read > > > > Documentation/process/stable-kernel-rules.rst > > > > first. > > I'm familiar with it and the sort of commits that flow into stable. > > > > I feel like this trivial fix is worth taking into stable rather than > > > suppressing these errors (mentally and in log scanners) for years. > > > > Years? > > Yes, years. v5.10 is supported through 2026. > > > In any case, sorry, no, I don't consider this stable material. > > The bar varies by subsystem maintainer but this wouldn't be the first > logging fix that made it into a stable branch. From the linux-5.10.y > branch of linux-stable: > > ddb13ddacc60 scsi: pm80xx: Fix misleading log statement in pm8001_mpi_get_nvmd_resp() > 526261c1b706 amd/display: downgrade validation failure log level > 9a3f52f73c04 bnxt_en: Improve logging of error recovery settings information. > 5f7bda9ba8d7 leds: lm3697: Don't spam logs when probe is deferred > 8b195380cd07 staging: fbtft: Don't spam logs when probe is deferred > ... Well, lemme add the stable folks for comment then - they might have had their reasons. ( Or Sasha's AI went nuts. Which I've witnessed a bunch of times already.) If I look at the stable-kernel-rules.rst file, the only rule that *maybe*, *probably* applies here is "- It must fix a real bug that bothers people" But this one is formulated so broadly so that it makes me wanna ignore it. Because *anything* can bother people - even spelling mistakes but then a later rule says no spelling fixes. Don't get me wrong - I don't mind having the stable tag where really needed. But here it is questionable. And we have those stable rules for a reason - if we start bending them and ignoring them then we might just as well backport everything that applies and have parallel kernel streams where the version means nothing. Basically a distro kernel. :-P So let's see what the stable folks say first. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette