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 X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2F06C4363A for ; Tue, 27 Oct 2020 10:18:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5FF4E22264 for ; Tue, 27 Oct 2020 10:18:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="LpRWqwR4"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Xzs7/BUR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2897744AbgJ0KSO (ORCPT ); Tue, 27 Oct 2020 06:18:14 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:46118 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2409760AbgJ0KSN (ORCPT ); Tue, 27 Oct 2020 06:18:13 -0400 Date: Tue, 27 Oct 2020 11:18:10 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1603793891; 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: in-reply-to:in-reply-to:references:references; bh=1YmHjSKwqafIy3Vu89uB9RaJ8SF/KkvKybgYzmgth3g=; b=LpRWqwR41JfItfv9uK21p/mufRc/JwNJ40B0PZBwnpRKMEWBhWTLq7EGWaXZqgxC5r5rIJ x7PgQ3uJHG6Lx2GWDkZQVxUr0NXR7xeO/+OAs2i9HfA6OGahx90Vzw2bvaxdeFAfVaIriZ llCEWvzoFyiiHJoSgC1rnHA7r/Ygbzk10sJ4QqSOQmiIVJpPpednu1MM+7cHZVzm0lD7d3 NjdmqYkJZknbcXNcpXvOESc4phJEbn/uSp/g1VaoOsUd3IyMZs1dcaCSVpDvyDCXW4Obg4 FPA827nmcBetxQB5SYpqjXhS1NAe7ZgCp2FlhPYoUMqV1HtOP5nMvxS4KA+zbw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1603793891; 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: in-reply-to:in-reply-to:references:references; bh=1YmHjSKwqafIy3Vu89uB9RaJ8SF/KkvKybgYzmgth3g=; b=Xzs7/BURSrRQCa3+4rSEmEUENzlEng5scCdPQyZs7xSa4ZHF3PS4o/8v5SOwnvhQbtizH+ z835W3rTaj1yJaBA== From: Sebastian Andrzej Siewior To: Mike Galbraith Cc: Hillf Danton , Thomas Gleixner , LKML , linux-rt-users , Steven Rostedt , Ben Skeggs Subject: Re: kvm+nouveau induced lockdep gripe Message-ID: <20201027101810.pk5liej6xmbjcwem@linutronix.de> References: <20201023090108.5lunh4vqfpkllmap@linutronix.de> <20201024022236.19608-1-hdanton@sina.com> <20201024050000.8104-1-hdanton@sina.com> <20201026173107.quylcy6fgjvrqat6@linutronix.de> <431e81699f2310eabfe5af0a3de400ab99d9323b.camel@gmx.de> <20201026195308.wsbk7xy57wuzfbao@linutronix.de> <0dfae65db2f0d3ef603c1db34f37cee63f7f41f4.camel@gmx.de> <20201027090019.3vteojm43ljqqe33@linutronix.de> <7bbfce68bdd01e1d48d3d2c6f9581654e380bf2d.camel@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <7bbfce68bdd01e1d48d3d2c6f9581654e380bf2d.camel@gmx.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020-10-27 11:14:34 [+0100], Mike Galbraith wrote: > On Tue, 2020-10-27 at 10:00 +0100, Sebastian Andrzej Siewior wrote: > > Let me try if I can figure out when this broke. > > My money is on... > 710da3c8ea7df (Juri Lelli 2019-07-19 16:00:00 +0200 5317) if (pi) > 710da3c8ea7df (Juri Lelli 2019-07-19 16:00:00 +0200 5318) cpuset_read_lock(); > ...having just had an unnoticed consequence for nouveau. but that is over a year old and should be noticed in v5.4-RT. > -Mike Sebastian