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=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 85595C3A5A2 for ; Fri, 23 Aug 2019 11:37:26 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2F1D620673 for ; Fri, 23 Aug 2019 11:37:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="Ev0hZVFb" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2F1D620673 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id AA37C6B038D; Fri, 23 Aug 2019 07:37:25 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A54E06B038E; Fri, 23 Aug 2019 07:37:25 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 942A26B038F; Fri, 23 Aug 2019 07:37:25 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0009.hostedemail.com [216.40.44.9]) by kanga.kvack.org (Postfix) with ESMTP id 88ACB6B038D for ; Fri, 23 Aug 2019 07:37:25 -0400 (EDT) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with SMTP id 7A35E8243760 for ; Fri, 23 Aug 2019 11:37:21 +0000 (UTC) X-FDA: 75853491882.02.robin17_2317b726ab222 X-HE-Tag: robin17_2317b726ab222 X-Filterd-Recvd-Size: 1967 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf50.hostedemail.com (Postfix) with ESMTP for ; Fri, 23 Aug 2019 11:37:21 +0000 (UTC) Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (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 F066D20673; Fri, 23 Aug 2019 11:37:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566560240; bh=vTu4N+FWywT7DusqHwzG38gOKUROnQ/PN6+3q9xkgX0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Ev0hZVFbPDhQM8fUZYmyg+dSIGhpks6fapR6ZQAhS71StNX3QDt4qKN/IVK3VaQwP Lp/jcy99LXDRvunR5miwqPGxSNxH2XIlBRSPaD7YaJ3T+jyfNqJGqX6wMCD2X/8m+d 6AbvLaC1cxZSjBgIeD47vslRuZF7MgXt6SguW8pM= Date: Fri, 23 Aug 2019 12:37:16 +0100 From: Will Deacon To: Qian Cai Cc: Catalin Marinas , Dan Williams , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Peter Zijlstra Subject: Re: page_alloc.shuffle=1 + CONFIG_PROVE_LOCKING=y = arm64 hang Message-ID: <20190823113715.n3lc73vtc4ea2ln4@willie-the-truck> References: <1566509603.5576.10.camel@lca.pw> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <1566509603.5576.10.camel@lca.pw> User-Agent: NeoMutt/20170113 (1.7.2) Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000114, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Aug 22, 2019 at 05:33:23PM -0400, Qian Cai wrote: > https://raw.githubusercontent.com/cailca/linux-mm/master/arm64.config >=20 > Booting an arm64 ThunderX2 server with page_alloc.shuffle=3D1 [1] + > CONFIG_PROVE_LOCKING=3Dy=A0results in hanging. Hmm, but the config you link to above has: # CONFIG_PROVE_LOCKING is not set so I'm confused. Also, which tree is this? Will