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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham 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 145D1C10F01 for ; Mon, 18 Feb 2019 12:20:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CEB02217D9 for ; Mon, 18 Feb 2019 12:20:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550492424; bh=4Dd/J6eFI8E4YkHGRz2DkkmnJaHhxBt1qYKo1VHCx4I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=EIkCc5FUcd+/WA7Fin6kWLdOQQzhgZn1eQxqGmlBZUr0mvLDMHY9SGMLJSoouWHEK Zf1qX+ynzKUoIPhHQrZYxYSsNCoSBQfcEAj5LWHIfzpzkHbYZIm0DgO3/J9LT1qUs1 1b2SIy/7oppMU6YrCfmbXWLGrTLGKw9u/3EuOux0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727084AbfBRMUY (ORCPT ); Mon, 18 Feb 2019 07:20:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:33132 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729713AbfBRMUX (ORCPT ); Mon, 18 Feb 2019 07:20:23 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CE0D521773; Mon, 18 Feb 2019 12:20:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550492423; bh=4Dd/J6eFI8E4YkHGRz2DkkmnJaHhxBt1qYKo1VHCx4I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=OzqPiGY/i6PJZVsWQlJcFz8OlhQLsQQWAsnn8+4WiP6vObLsKYw+0XSIzCNKniR43 oSOtgYACUl3oM90Ht6Wsc1nnp4w96Yddn4oa3oUYRjm3IPpRSMzP65CAV1LU0GqjJz GZnkomxyXG/16P3xKtE5MMiEPN0qsh8oah4QfPd4= Date: Mon, 18 Feb 2019 13:20:20 +0100 From: Greg KH To: Sudip Mukherjee Cc: tglx@linutronix.de, dvhart@infradead.org, heiko.carstens@de.ibm.com, mingo@kernel.org, peterz@infradead.org, sashal@kernel.org, stli@linux.ibm.com, stable@vger.kernel.org Subject: Re: FAILED: patch "[PATCH] futex: Cure exit race" failed to apply to 4.14-stable tree Message-ID: <20190218122020.GB30260@kroah.com> References: <1545652342192242@kroah.com> <20190217113430.6noyzzaq7r4evpxv@debian> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190217113430.6noyzzaq7r4evpxv@debian> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Sun, Feb 17, 2019 at 11:34:30AM +0000, Sudip Mukherjee wrote: > Hi Greg, > > On Mon, Dec 24, 2018 at 12:52:22PM +0100, gregkh@linuxfoundation.org wrote: > > > > The patch below does not apply to the 4.14-stable tree. > > If someone wants it applied there, or to any other stable or longterm > > tree, then please email the backport, including the original git commit > > id to . > > The attached backported patch should apply to 4.14-stable tree. > > I think we have a real usecase which is triggering this error and I was > still in the middle of debugging that. But my initial analysis was > showing that the userspace thread was stuck in the indefinite loop. > I have a reliable reproducer of the problem and will setup a test > tomorrow and confirm. Now applied, thanks. greg k-h