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 3256AC7EE23 for ; Sun, 21 May 2023 14:32:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229656AbjEUO2R (ORCPT ); Sun, 21 May 2023 10:28:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43278 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230176AbjEUO1y (ORCPT ); Sun, 21 May 2023 10:27:54 -0400 Received: from mout.gmx.net (mout.gmx.net [212.227.15.19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98F12109 for ; Sun, 21 May 2023 07:27:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.de; s=s31663417; t=1684679231; i=efault@gmx.de; bh=D64N/U99IAOrDBrnnVLYscTrCB4BX8s4xJcSp7nf+XM=; h=X-UI-Sender-Class:Subject:From:To:Cc:Date:In-Reply-To:References; b=qrjIkrAne/oi11GqsPW57L4F7An2oOJG0VQTrCG3iDSWExxUFO8wZZ8LuXcCwq1hs xmQBKnWbra8K1bzhb3lW+oGCgAMCydyoyRAGvqLyl1D6Q5PTZxzzgt+7J/SSsV7E3p Mv6QNGK2iKRmeH6cIfPekT7rsTPnFIvLIsWEvXe/czNEhRYituEm1kVusvuYa+1rgq WN+jWwKtN2YehSc7eNlXEFXiqVvtzCE09+SkGrDNfQ+pg+zLE7SCwUs+F58vtGLMYP Z+B6xUH2ZqTRDvEcocPUp/dXsweeGdPYzka55XysrFfudbQ1K0JyXzvhyoHHrV9ZYP W6vr10FM41mig== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from homer.fritz.box ([185.191.219.131]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1M9FnZ-1q5zDM0LW3-006PUg; Sun, 21 May 2023 16:27:11 +0200 Message-ID: <28727b435c143f15feddffb4c29095fee2500dff.camel@gmx.de> Subject: Re: r8169: disable ASPM during NAPI poll locking changes --> BUG: Invalid wait context --> PREEMPT_RT pain From: Mike Galbraith To: Heiner Kallweit Cc: lkml , Thomas Gleixner , Sebastian Andrzej Siewior Date: Sun, 21 May 2023 16:27:10 +0200 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.42.4 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:g1dbrHI6vD+b5Xgqs9rehFTSEsCddxnM64RmcDEVQB1so24juyj 2Gw+hCBEylt+6wBdAp2qFTdtfxXaiXYCEfw/qFLTJvsUhgXjXLjJuM1Wcg8+YdjkN5HAQN2 dx1Oluoik8V9uo2tzFTPM54BrzvGKRr5h7ze9+pQl8R8qXjd9esAps0oDtUZ+Sg56tEZFlr DlLL4AZTtOs864ATr/4Tg== UI-OutboundReport: notjunk:1;M01:P0:mYp4pNuJAGE=;c8CCNgrFYRweqvccLNVb8A4iDFz mbiz5B+73f216Rb5Z535PXJfdHgxCGMmwMaNyXojBEL84Q2Jw1TjZpTuGt8XxeBJshOsByvlG VsAc2qwPOmrKAEjzq24kLWBATe6SbiLIn16KRDs5gwmcSsOkdVq/UKixXzZQWpUEIMC08+4LU GDM3Amhs/Rb4BN84ArrOD2Uc2UMqo4HsM2osR95mRtHbYhzWMOCcI07c9oryNEGurr3gA0wbJ K2tzBt54Y52A8jd8k6Lt+KTSSSzcvklpMEE7H5/YX6xHtP8hBxMty4vRqCM5MQlaZRLDh3YDd /w5XBJFroCcs3bCh69lqEUWdFz6Mju7EK3MVfuE61dVnsXSy8wxRruojXSOiBgCfcJZkrU/Ma 20Nq2E/ALAGFNbWDgR2Qgp4/A+CP3GUOZR4eTDeWBT01KUti0sxXeyheXu2/HZGSooxIZ01FD qiMQPaCyqESjreu+qGCyf1MLLnvagKfdBWyE5limZVDuG0JzWlc6hl7T55pqOc/y22f0fNo3X V+GEqSVU3WldX12ko8PuQ63g4XtvnNhaQ1bQ6VQ4w8WHno8TerHPT+vkLKnaj5mXeIaePNbVs 0xSF1OsBTE3u0h8/HEWVDT31bRTVnNuOWR0Y9zL4IXGHARZERO32+0yd8mLADx7xwak+XVTFz YLGu+9gtwhxBocPm57zILxkLS8iq0jHdsaWyna5ywNhxdIGaUOKGYat93DjlUq9ubhcwsWXnN VywmKtHqYuf/t9neWebclsAV4p2h4rGmYpV9DU6FG18MvPUQAYWTjN8afj0odTkR+x0wqwSU+ 4hxdhDEChbpU6QyLaLn/yaXfSEJ9Be8cHNPqvWHeXOnazgTRLrvV6BHdLiGJ1zUbMsexf7PAT szY/ss8SC7cAZRaT44Y3YHYO/jqNUmG07WffjdXQ7/iCi9QbyNzGrPEAbxthH5K9vLKyKEi40 9pdGYQ== Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 2023-05-21 at 08:03 +0200, Mike Galbraith wrote: > Greetings, > > The locks added to prep for $subject induce invalid context moaning due > to not being raw locks, but if I do that, the hold time does very bad > things to RT. The locks aren't really 160us horrible. The GPU was enabled (oops), nouveau then makes box horrible for RT (and graphics:). With GPU turned back off, the largest trace I saw was 77us, which jibes pretty well with new max of low to mid 50s without ftrace running, or up a tad over 20us for this now pretty old commodity i7 desktop box. -Mike