Received: by 2002:a25:d7c1:0:0:0:0:0 with SMTP id o184csp4083466ybg; Fri, 25 Oct 2019 13:04:54 -0700 (PDT) X-Google-Smtp-Source: APXvYqzmHJKiSuRKN1hY0PUUmdYsEyZ+Cz/JvQ0B2qqhF6YkfkvcCSDV0OAKUQwu4UoRVg5tfPQ+ X-Received: by 2002:aa7:dcd7:: with SMTP id w23mr6076642edu.34.1572033894143; Fri, 25 Oct 2019 13:04:54 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1572033894; cv=none; d=google.com; s=arc-20160816; b=gE2tlbH9jdPjNprqG/h89I1b7q8bYteQ5bP2S0IHslNjBg0lRjO/+fdLkHiriNEF1X QDcn7WCb+/u5SGbSiA4iMc0FSftNJ+R6L60h10W2fOeV7D9CMKwQEzUA9RJO5Y25r/W4 l+6RcRUsJbpCH2K5ant4yMAkthzH8vMfGJzQYESGbdHZuFkeMfkKPYvJtcIRQ6IMGSPW 3kbXnZ4c1z/Pe98KoamHFkQ50mGjrHYyZni7hGer9djHECakdTn5dgDThVzjhTCvv2ci 2/zG9sLj7MlBPgvNMbalTHSJqPVbTO66M+kXiahkc09xnVHHsLJ1tk991daQvC24gN02 gmsw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=RuKzFJOereGOo1kirMfw8jo8USaA4SnL9UNlVTwlYjY=; b=MnMFwFZkRx7+lZsiua4bzjd8tUb82AUFf6djskbfj0pVWQusTAV3eWXUw6cDUoDtnU NwXw+eVZilxbz9VKwzoLVqTFp142RzqJ750uRNGB31wiK3e2J6ynLZOTavnM6DOt22Ol g3eK4zA5NVoQ+Q20tCYtSZ2yuEXYxLkILF4+2w3ERSh1AvRXPXYbeHqaa2aOcbnRz0G7 GoHx9ktGy1BDcqbeIKrqfCX6P0Ij+XRVJUHv+1Toq3Q7Qw6jpbV7fT30o667fG8DXJBq n0KxhFEgpcBoAHx2F+od5vOdfCRJgLXXhu3zR6xYmByhZvQ3EVN6WZXoVFsM+XhzwNa4 GRgg== 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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id cf19si1733994ejb.14.2019.10.25.13.04.30; Fri, 25 Oct 2019 13:04:54 -0700 (PDT) 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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2504150AbfJYMLH (ORCPT + 99 others); Fri, 25 Oct 2019 08:11:07 -0400 Received: from mx2.suse.de ([195.135.220.15]:56582 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2409923AbfJYMLG (ORCPT ); Fri, 25 Oct 2019 08:11:06 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 5BF6DB21D; Fri, 25 Oct 2019 12:11:05 +0000 (UTC) Date: Fri, 25 Oct 2019 14:11:04 +0200 From: Michal Hocko To: snazy@snazy.de Cc: Randy Dunlap , linux-kernel@vger.kernel.org, Linux MM , Andrew Morton , "Potyra, Stefan" Subject: Re: mlockall(MCL_CURRENT) blocking infinitely Message-ID: <20191025121104.GH17610@dhcp22.suse.cz> References: <4576b336-66e6-e2bb-cd6a-51300ed74ab8@snazy.de> <20191025092143.GE658@dhcp22.suse.cz> <70393308155182714dcb7485fdd6025c1fa59421.camel@gmx.de> <20191025114633.GE17610@dhcp22.suse.cz> <20191025120505.GG17610@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191025120505.GG17610@dhcp22.suse.cz> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri 25-10-19 14:05:05, Michal Hocko wrote: [...] > This smells like something that could be runtime specific. Could you > post strace output of your testcase? Ohh and /proc//smaps while the strace is hung on mlockall please. -- Michal Hocko SUSE Labs