From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0204E18029 for ; Fri, 20 Oct 2023 10:56:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [80.237.130.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06679E8; Fri, 20 Oct 2023 03:56:00 -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 1qtnAc-0001wr-FQ; Fri, 20 Oct 2023 12:55:58 +0200 Message-ID: <37c2c8ee-d909-413d-9cf7-e67efd7fdb30@leemhuis.info> Date: Fri, 20 Oct 2023 12:55:57 +0200 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Fwd: High cpu usage caused by kernel process when upgraded to linux 5.19.17 or later Content-Language: en-US, de-DE To: Linux Regressions Cc: Linux Kernel Mailing List , Linux Netfilter Development , Netfilter Core Developers , Linux Networking , Linux Power Management References: <01ac399d-f793-49d4-844b-72cd8e0034df@gmail.com> From: "Linux regression tracking #update (Thorsten Leemhuis)" Reply-To: Linux regressions mailing list In-Reply-To: <01ac399d-f793-49d4-844b-72cd8e0034df@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-bounce-key: webpack.hosteurope.de;regressions@leemhuis.info;1697799360;0c50cbf2; X-HE-SMSGID: 1qtnAc-0001wr-FQ [TLDR: This mail in primarily relevant for Linux kernel regression tracking. See link in footer if these mails annoy you.] On 23.06.23 02:58, Bagas Sanjaya wrote: > > I notice a regression report on Bugzilla [1]. Quoting from it: > >> kernel process "kworker/events_power_efficient" uses a lot of cpu power (100% on ESXI 6.7, ~30% on ESXI 7.0U3 or later) after upgrading from 5.17.3 to 5.19.17 or later. > [...] > #regzbot introduced: v5.17.3..v5.19.17 https://bugzilla.kernel.org/show_bug.cgi?id=217586 > #regzbot title: kworker/events_power_efficient utilizes full CPU power after kernel upgrade > > Thanks. > > [1]: https://bugzilla.kernel.org/show_bug.cgi?id=217586 #regzbot resolve: afaics: misconfiguration became more problematic due to new mitigations #regzbot ignore-activity Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr That page also explains what to do if mails like this annoy you.