Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp35046imu; Tue, 22 Jan 2019 13:17:40 -0800 (PST) X-Google-Smtp-Source: ALg8bN76IDrqXbqY2mLbBFvjczYIFzpu9m713uMtVXneuXFJ21SmTRKoC8JUPxqrGS5Cfqa+DTGg X-Received: by 2002:a17:902:9b87:: with SMTP id y7mr36106841plp.336.1548191860290; Tue, 22 Jan 2019 13:17:40 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1548191860; cv=none; d=google.com; s=arc-20160816; b=YMSKAvhwTF4+f9Lmj1OXx+PSBQXIBBNRgQ7vRpGjZks5HhOt8SFYq1/J3w/SBw9Hyf tSjjFaunUYH28uD/HJLCs9PIEg3CWKz9adWBhi3Z9ymk55gmZTpNiHU37a1R3ixTB75a PpQY5+5XEmpZ+Un61bdYJxiE6LOMdauoltc/fDjgRx06ydEYoiypVzSw++d5W5Gf3/fQ HXiGnJ5FfIYTRAzFMe3ZOI/nsTePh1N1U7i2KxiIxMAdLoZQNhBMqWZVwZCuNm4EV4gV Y1Zajcef5MCsgV12ln9GL6bC7e5boSFgu6qMcGC0++v/54K4YHm9hqJNNhm7wVI/ahq8 /CMQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:user-agent:references :message-id:in-reply-to:subject:cc:to:from:date; bh=YHSM6Pc+3eyIp3t3AfoGYWi/+LH34Wlure4sAv4eTaQ=; b=OFYdkW9A0T/RDeJkF8MYHs1exSqrLKJJiTAe3Jij8Jc4RQfeypNwYbROgIRdmy4g4R SERBRHT8PpgkMCQK8Ks3q5Vcs/4DxLEytrC9TexDOfM8nFqtxhgf7M6EmeqmU0rqokwZ fXpRrwXWwKat7G1fceDNvpeSGLtj6x2ZQm6x6j6Z5eZs9tYIUUfVXWOrn+5Oyzs3hJkO fkHNFaeqpuOZMrjiHe2oG6y8IRWodyFvucu+P43xJ90Q4veEa9BNcpoCHNWzSSNzjEKr 4saV+4yLXWuZM8/ZzlD5U90jAiQ2Uh/CmNBwHo9FoLpzDEI+Gsx1koTsBftg9LAunLDS PFrQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id b3si16957299pld.282.2019.01.22.13.17.08; Tue, 22 Jan 2019 13:17:40 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726754AbfAVVOI (ORCPT + 99 others); Tue, 22 Jan 2019 16:14:08 -0500 Received: from Galois.linutronix.de ([146.0.238.70]:60780 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726178AbfAVVOI (ORCPT ); Tue, 22 Jan 2019 16:14:08 -0500 Received: from p4fea4364.dip0.t-ipconnect.de ([79.234.67.100] helo=nanos) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1gm3Mv-0000GS-AQ; Tue, 22 Jan 2019 22:14:01 +0100 Date: Tue, 22 Jan 2019 22:14:00 +0100 (CET) From: Thomas Gleixner To: Heiko Carstens cc: Peter Zijlstra , Ingo Molnar , Martin Schwidefsky , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, Stefan Liebler Subject: Re: WARN_ON_ONCE(!new_owner) within wake_futex_pi() triggered In-Reply-To: Message-ID: References: <20181127081115.GB3625@osiris> <20181129112321.GB3449@osiris> <20190121122131.GG4020@osiris> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 21 Jan 2019, Thomas Gleixner wrote: > On Mon, 21 Jan 2019, Heiko Carstens wrote: > > > Hi Thomas, > > > > [full quote below] > > > > Did you have any time to look into this yet? :) > > > > The warning is still reproducible. > > Yeah, it's on my list of stuff which I need to take care of urgently. In > the next couple of days I hope... Hmm. Doesn't da791a667536 ("futex: Cure exit race") address that issue? Thanks, tglx