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 7F64EC77B75 for ; Tue, 16 May 2023 14:06:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233819AbjEPOG1 (ORCPT ); Tue, 16 May 2023 10:06:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233680AbjEPOGY (ORCPT ); Tue, 16 May 2023 10:06:24 -0400 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [80.237.130.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D87DF19A6 for ; Tue, 16 May 2023 07:06:23 -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 1pyvJa-00084U-Ut; Tue, 16 May 2023 16:06:11 +0200 Message-ID: <17726d05-91bb-55da-e2f9-a9ba5b8d2223@leemhuis.info> Date: Tue, 16 May 2023 16:06:10 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Reply-To: Linux regressions mailing list Subject: Re: [PATCH v11 8/8] vhost: use vhost_tasks for worker threads Content-Language: en-US, de-DE To: nicolas.dichtel@6wind.com, Mike Christie , hch@infradead.org, stefanha@redhat.com, jasowang@redhat.com, mst@redhat.com, sgarzare@redhat.com, virtualization@lists.linux-foundation.org, brauner@kernel.org, ebiederm@xmission.com, torvalds@linux-foundation.org, konrad.wilk@oracle.com, linux-kernel@vger.kernel.org References: <20230202232517.8695-1-michael.christie@oracle.com> <20230202232517.8695-9-michael.christie@oracle.com> From: "Linux regression tracking #adding (Thorsten Leemhuis)" In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-bounce-key: webpack.hosteurope.de;regressions@leemhuis.info;1684245983;c71fe96e; X-HE-SMSGID: 1pyvJa-00084U-Ut Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [TLDR: I'm adding this report to the list of tracked Linux kernel regressions; the text you find below is based on a few templates paragraphs you might have encountered already in similar form. See link in footer if these mails annoy you.] On 05.05.23 15:40, Nicolas Dichtel wrote: > Le 03/02/2023 à 00:25, Mike Christie a écrit : >> For vhost workers we use the kthread API which inherit's its values from >> and checks against the kthreadd thread. This results in the wrong RLIMITs >> being checked, so while tools like libvirt try to control the number of >> threads based on the nproc rlimit setting we can end up creating more >> threads than the user wanted. > > I have a question about (a side effect of?) this patch. The output of the 'ps' > command has changed. Here is an example: > [...] Thanks for the report. This is already dealt with, but to be sure the issue doesn't fall through the cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression tracking bot: #regzbot ^introduced 6e890c5d502 #regzbot title vhost: ps output changed and suspend fails when VMs are running #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.