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, URIBL_BLOCKED,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 2049DC6786C for ; Fri, 14 Dec 2018 07:18:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D5C5B20879 for ; Fri, 14 Dec 2018 07:18:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544771912; bh=4Qcazf4gN7Np/Y5uphg8NKZrrThoNVKCQy2pMcMKeAk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=FJVcacT/k2TJ2xN0w3p7Ih/JU/nR8oN6EgTr1sUZJqcWGu3y+M1geVGdHQR2dpA7D LpOQLLPIeufwUVR4PZ8NRYG1qJcRIq2oHnYvaMtKpWoEirQLgRChXQRywZvBJ9XrKR 2jx6BVtvJwXofoVvC86S3XW/r/X6Lf7jmPCVVQB0= DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D5C5B20879 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727164AbeLNHSa (ORCPT ); Fri, 14 Dec 2018 02:18:30 -0500 Received: from mail.kernel.org ([198.145.29.99]:49260 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726500AbeLNHSa (ORCPT ); Fri, 14 Dec 2018 02:18:30 -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 A072D2086D; Fri, 14 Dec 2018 07:18:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544771909; bh=4Qcazf4gN7Np/Y5uphg8NKZrrThoNVKCQy2pMcMKeAk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=H6KMPorPjWPuGDsbHBbMz5r0ECyLAEdoALczkaoxrI4i9oKwXgt/WZ+piqg3JJ+nT A+F3X/VCTI1akp2VvO5WImRftOAxyiVoCRPyyA+01TBPnDqpdcPDraCDOnF7ErG6By o9KOirJq9L5eQZnXOW4M11EHTLC6aYR3Q3G9ruVs= Date: Fri, 14 Dec 2018 08:18:26 +0100 From: Greg Kroah-Hartman To: Henrik Austad Cc: Linux Kernel Mailing List , stable@vger.kernel.org, Henrik Austad , Peter Zijlstra , juri.lelli@arm.com, bigeasy@linutronix.de, rostedt@goodmis.org, mathieu.desnoyers@efficios.com, jdesfossez@efficios.com, dvhart@infradead.org, bristot@redhat.com, Thomas Gleixner Subject: Re: [PATCH 00/17] Backport rt/deadline crash and the ardous story of FUTEX_UNLOCK_PI to 4.4 Message-ID: <20181214071826.GE31355@kroah.com> References: <1541758065-10952-1-git-send-email-henrik@austad.us> <20181109103531.GA9188@sisyphus.home.austad.us> <20181119112720.GA29334@sisyphus.home.austad.us> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181119112720.GA29334@sisyphus.home.austad.us> User-Agent: Mutt/1.11.1 (2018-12-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 19, 2018 at 12:27:21PM +0100, Henrik Austad wrote: > On Fri, Nov 09, 2018 at 11:35:31AM +0100, Henrik Austad wrote: > > On Fri, Nov 09, 2018 at 11:07:28AM +0100, Henrik Austad wrote: > > > From: Henrik Austad > > > > > > Short story: > > > > Sorry for the spam, it looks like I was not very specific in /which/ > > version I targeted this to, as well as not providing a full Cc-list for the > > cover-letter. > > Gentle prod. I realize this was sent out just before plumbers and that > people had pretty packed agendas, so a small nudge to gain a spot closer to > the top of the inbox :) > > This series has now been running on an arm64 system for 9 days without any > issues and pi_stress showed a dramatic improvement from ~30 seconds and up > to several ours (it finally deadlocked at 3.9e9 inversions). > > I'd greatly appreciate if someone could give the list of patches a quick > glance to verify that I got all the required patches and then if it could > be added to 4.4.y. This is a really intrusive series of patches, and without some testing and verification by others, I am really reluctant to take these patches. Why not just move to the 4.9.y tree, or better yet, 4.19.y to resolve this issue for your systems? thanks, greg k-h