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 24AFCCDB482 for ; Fri, 13 Oct 2023 12:05:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231414AbjJMMFk (ORCPT ); Fri, 13 Oct 2023 08:05:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53496 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231381AbjJMMFi (ORCPT ); Fri, 13 Oct 2023 08:05:38 -0400 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [80.237.130.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 82EDCBD for ; Fri, 13 Oct 2023 05:05:35 -0700 (PDT) Received: from [2a02:8108:8980:2478:8cde:aa2c:f324:937e]; authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1qrGv4-0004ip-VD; Fri, 13 Oct 2023 14:05:31 +0200 Message-ID: <9787bd09-91b3-4a79-9ca9-e7199c925f36@leemhuis.info> Date: Fri, 13 Oct 2023 14:05:29 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [regression] some Dell systems hang at shutdown due to "x86/smp: Put CPUs into INIT on shutdown if possible" (was Fwd: Kernel 6.5 hangs on shutdown) Content-Language: en-US, de-DE To: Thomas Gleixner Cc: Linus Torvalds , Yanjun Yang , Linux Kernel Mailing List , Linux Regressions , Bagas Sanjaya , "Borislav Petkov (AMD)" , Ashok Raj , Ingo Molnar , Dave Hansen , the arch/x86 maintainers References: From: "Linux regression tracking (Thorsten Leemhuis)" Reply-To: Linux regressions mailing list In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-bounce-key: webpack.hosteurope.de;regressions@leemhuis.info;1697198735;8913fc85; X-HE-SMSGID: 1qrGv4-0004ip-VD Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [CCing x86 maintainers] Hi Thomas! On 12.10.23 11:37, Bagas Sanjaya wrote: > > I notice a regression report on Bugzilla [1]. Quoting from it: >>> I use Dell OptiPlex 7050, and kernel hangs when shutting down the computer. >> Similar symptom has been reported on some forums, and all of them are using >> Dell computers: >> https://bbs.archlinux.org/viewtopic.php?pid=2124429 >> https://www.reddit.com/r/openSUSE/comments/16qq99b/tumbleweed_shutdown_did_not_finish_completely/ >> https://forum.artixlinux.org/index.php/topic,5997.0.html Another report: https://bugzilla.redhat.com/show_bug.cgi?id=2241279 >From all those links it seems quite a lot of users with Dell machines are affected by this problem. >> Tested with various kernel and this bug seems to be caused by commit: 88afbb21d4b36fee6acaa167641f9f0fc122f01b. Thomas, turns out that bisection result was slightly wrong: a recheck confirmed that the regression is actually caused by 45e34c8af58f23 ("x86/smp: Put CPUs into INIT on shutdown if possible") [v6.5-rc1] of yours. See https://bugzilla.kernel.org/show_bug.cgi?id=217995 for details. Ciao, Thorsten > Anyway, I'm adding this regression to be tracked by regzbot: > [...] #regzbot introduced: 45e34c8af58f #regzbot link: https://bugzilla.redhat.com/show_bug.cgi?id=2241279