Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp4651805imm; Tue, 7 Aug 2018 05:16:30 -0700 (PDT) X-Google-Smtp-Source: AAOMgpfCFtrYRO9O5BgescPJN/0DDO63DT8yoG5kO4UnGJR5fPRiA03YxAOezH5fp3OsPPQxnMoW X-Received: by 2002:a62:9f1d:: with SMTP id g29-v6mr21195466pfe.207.1533644190478; Tue, 07 Aug 2018 05:16:30 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1533644190; cv=none; d=google.com; s=arc-20160816; b=DvGz6ZpoN0lqp/G5MS574C1+yBhsTtFS5UWpOqxC2Q9j75qL/JkpZt5w17JPWoIDp9 B+zmzh3Gwv7jpQoFYhTa8myX/EApIh7TPy5OQaiPTwRaviJSRFxZE84i6McmPSiJA9LO LSJpmr4LV8TNjGh4bcKSmdslwkMtcjL1IIh46t/bmqowsjeAxsgOQH8wwUteoRmF5oaa zTDLbr4GL7Zu7DyjLYNiyPgTJHqXz/TZ23ENIAJpc1SPcUYyWNGfLKXMYDSOF4uku+Hl jRbIYgn+czaALrAyJY5WiyoCAlzR0Tk79R/clUAuXNKxW6tQRBDzO9vH9CqxKpSi/z/9 3SsQ== 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:arc-authentication-results; bh=x7kMMqaWJ7K9/Di2bKibBsq9cPP31kt8Mm2NAy8E66Y=; b=Wp6srD/8sWyy2aCiG/VrfP9CUBmy8OoAgSwPLwgLto42Efvx5tPSABuhMQP/7gbMVu TP7ShlSuGl2v9DFOBRrwFgylQsAl31xUV+BB8IrB+uo4C5JjmQtAyWIrlV7b2PO3abS+ oa81agpFG0FeFXjZtp46DRebnqCDGtNU+PwsN/E3BP1j0WAzHx/UOnn6Ea97y5+QDh1Y HhWwMP1ux8c3F3fWK0BRg0a9Ctdpur0tfCZpiSdEc8VwvLVFYNd2SZ4XCMtogWjHWTgF cPT1+cQcQ/5qad7437+FU+3chQrE8D2gKDcL7M+rMgcOHokCh4X+DJe2EbBm0haoWA6v HNvg== 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 h189-v6si1219871pge.66.2018.08.07.05.16.14; Tue, 07 Aug 2018 05:16:30 -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 S2388745AbeHGNjQ (ORCPT + 99 others); Tue, 7 Aug 2018 09:39:16 -0400 Received: from mx2.suse.de ([195.135.220.15]:58472 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727068AbeHGNjQ (ORCPT ); Tue, 7 Aug 2018 09:39:16 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id B9DEBACE2; Tue, 7 Aug 2018 11:25:23 +0000 (UTC) Date: Tue, 7 Aug 2018 13:25:22 +0200 From: Michal Hocko To: Dmitry Vyukov Cc: syzbot , cgroups@vger.kernel.org, Johannes Weiner , LKML , Linux-MM , Tetsuo Handa , syzkaller-bugs , Vladimir Davydov Subject: Re: WARNING in try_charge Message-ID: <20180807112522.GA10003@dhcp22.suse.cz> References: <20180806181339.GD10003@dhcp22.suse.cz> <0000000000002ec4580572c85e46@google.com> <20180806185554.GG10003@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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 Tue 07-08-18 13:18:00, Dmitry Vyukov wrote: [...] > Great we are making progress here! > > So if it's something to fix in kernel we just leave WARN alone. It > served its intended purpose of notifying kernel developers about > something to fix in kernel. Yes, agreed! And the way how your syzbot automation works made it so much easier so thanks a lot! The patch has been posted http://lkml.kernel.org/r/20180807072553.14941-1-mhocko@kernel.org -- Michal Hocko SUSE Labs