Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp10677317ybl; Thu, 26 Dec 2019 23:48:28 -0800 (PST) X-Google-Smtp-Source: APXvYqxVOdNaRMWfA9V6wesDPw3tPCITukRlG2YJUYPuwJKg2RvqP8WOtyq2/VVxpBSdzXQWVoIp X-Received: by 2002:a9d:ec1:: with SMTP id 59mr52450022otj.141.1577432908780; Thu, 26 Dec 2019 23:48:28 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1577432908; cv=none; d=google.com; s=arc-20160816; b=JHcbzgp9IXy/vSqQO9yXetH3J3pu+OMbWcdh7CAlrjGPX7HsxWKPOSFRAfB+IHrPge E8wNY2uy2P64Rpy5+wETSpU0p97ZmIug/ev/KJOkBJpDTibJgyVbZ6XFrV8fEoILWcAF xx2cTYyADMMA2Ak6S6wIp+LCNNMe6PWPNTcFANlo9rxBICcMxgexqI2T8Fwqe6U6kZyM hWfs8yp7420Y2a28VugxS65v6dJ11d/a9snxd7MhQmPRlXuqjX+g1FxPEMvkN4aYfutd CJaECX2fS2jWD1fATnqkXIwV7l2tD6MI3A3hsSUmSVq0WLjLihxImXnffZMAsrzqMVV5 mDTQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:date:cc:to:from:subject:message-id :dkim-signature; bh=c7+sXShYFxG3wcTEwAICxBEiQe2t3QIDNgGX1i8gy9E=; b=00FCEOAqrRNhecSIAmRBwgxH5hRt85+R4mAMM5ojdScOftfSjdpj4H/bRyj81sII94 dKilDa8DnsQzNx/+Q2As/AON3hjU5Q8OerONus413zl9HXLw4bG8yT1PH1d++Q4ZhhqN CR0sarNhncqCGfN7h8lBMH0zwXMn2loPkLWkIqSyA8za71+FWzuFjfxji7nOozsFQ+Wo 7HKvwTVlaWzAjfIAruB3PUgsTtrcZBXmS4boxPO1zhLUnyOg007CRBsEX43hnL7FN0vB R9uoOo9j35umOCnNNfbxs73WrKyS3RdbxjjYglJ2sQN2i9RU+4XaC59eInhwVulEXJil guSw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=NkkHB4At; 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=pass (p=NONE sp=NONE dis=NONE) header.from=mediatek.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id z65si6947704oia.33.2019.12.26.23.48.03; Thu, 26 Dec 2019 23:48:28 -0800 (PST) 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; dkim=pass header.i=@mediatek.com header.s=dk header.b=NkkHB4At; 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=pass (p=NONE sp=NONE dis=NONE) header.from=mediatek.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726197AbfL0Hoh (ORCPT + 99 others); Fri, 27 Dec 2019 02:44:37 -0500 Received: from mailgw02.mediatek.com ([210.61.82.184]:45188 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725904AbfL0Hoh (ORCPT ); Fri, 27 Dec 2019 02:44:37 -0500 X-UUID: cf1569c8872441638eb8f3651e14fb66-20191227 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject:Message-ID; bh=c7+sXShYFxG3wcTEwAICxBEiQe2t3QIDNgGX1i8gy9E=; b=NkkHB4AtSFSKPRgdPKrWCW+PoJMENdBLHJk10B8rFqV8VlTsM0EF0WB4B6Na5uoS4b8HWeA9CxITGIfxO6cmRvPZLyaMEvLT6tihiom4Yk8+MDDAFOT4khsnUZK0ay9HXatevwwAz1O+5YvcwPutAAC+SK//zHt2O/StzDEcUY0=; X-UUID: cf1569c8872441638eb8f3651e14fb66-20191227 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 268154553; Fri, 27 Dec 2019 15:44:31 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 27 Dec 2019 15:44:08 +0800 Received: from [172.21.77.33] (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 27 Dec 2019 15:44:19 +0800 Message-ID: <1577432670.4248.3.camel@mtkswgap22> Subject: Re: [PATCH] mm/page_owner: print largest memory consumer when OOM panic occurs From: Miles Chen To: Qian Cai CC: Andrew Morton , Michal Hocko , , , , Date: Fri, 27 Dec 2019 15:44:30 +0800 In-Reply-To: <95CD23C9-D10D-4E6A-BF53-A4C1A4DB281A@lca.pw> References: <20191226040114.8123-1-miles.chen@mediatek.com> <95CD23C9-D10D-4E6A-BF53-A4C1A4DB281A@lca.pw> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gVGh1LCAyMDE5LTEyLTI2IGF0IDAwOjUzIC0wNTAwLCBRaWFuIENhaSB3cm90ZToNCj4gDQo+ ID4gT24gRGVjIDI1LCAyMDE5LCBhdCAxMTowMSBQTSwgTWlsZXMgQ2hlbiA8bWlsZXMuY2hlbkBt ZWRpYXRlay5jb20+IHdyb3RlOg0KPiA+IA0KPiA+IFRoYXQgaXMgd2hhdCB0aGUgcGF0Y2ggZG9l cyAtLSB0YXJnZXRpbmcgb24gdGhlIG1lbW9yeSBsZWFrYWdlIHdoaWNoIGNhdXNlcyBhbiBPT00g a2VybmVsIHBhbmljLCBzbyB0aGUgZ3JlYXRlc3QgY29uc3VtZXIgaW5mb3JtYXRpb24gaGVscHMg KHRoZSBhbW91bnQgb2YgbGVha2FnZSBpcyBiaWcgZW5vdWdoIHRvIGNhdXNlIGFuIE9PTSBrZXJu ZWwgcGFuaWMpDQo+ID4gDQo+ID4gSSd2ZSBwb3N0ZWQgdGhlIG51bWJlciBvZiByZWFsIHByb2Js ZW1zIHNpbmNlIDIwMTkvNSBJIHNvbHZlZCBieSB0aGlzIGFwcHJvYWNoLg0KPiANCj4gVGhlIHBv aW50IGlzIGluIG9yZGVyIHRvIG1ha2UgeW91ciBkZWJ1Z2dpbmcgcGF0Y2ggdXBzdHJlYW0sIGl0 IGhhcyB0byBiZSBnZW5lcmFsIHVzZWZ1bC4gUmlnaHQgbm93LCANCg0KPiBpdCBmZWVscyByYXRo ZXIgc2l0dWF0aW9uYWwgZm9yIG1lIGZvciB0aGUgcmVhc29ucyBnaXZlbiBpbiB0aGUgcHJldmlv dXMgZW1haWxzLg0KDQoNCkl0J3Mgbm90IGNvbXBsZXRlIHNpdHVhdGlvbi4NCg0KSSd2ZSBsaXN0 ZWQgZGlmZmVyZW50IE9PTSBwYW5pYyBzaXR1YXRpb25zIGluIHByZXZpb3VzIGVtYWlsIFsxXQ0K YW5kIHdoYXQgd2UgY2FuIGRvIGFib3V0IHRoZW0gd2l0aCBjdXJyZW50IGluZm9ybWF0aW9uLg0K DQpUaGVyZSBhcmUgc29tZSBjYXNlcyB3aGljaCBjYW5ub3QgYmUgY292ZXJlZCBieSBjdXJyZW50 IGluZm9ybWF0aW9uDQplYXNpbHkuDQpGb3IgZXhhbXBsZTogYSBtZW1vcnkgbGVha2FnZSBjYXVz ZWQgYnkgYWxsb2NfcGFnZXMoKSBvciB2bWFsbG9jKCkgd2l0aA0KYSBsYXJnZSBzaXplLg0KSSBr ZWVwIHNlZWluZyB0aGVzZSBpc3N1ZXMgZm9yIHllYXJzIGFuZCB0aGF0J3Mgd2h5IEkgYnVpbHQg dGhpcyBwYXRjaC4gDQpJdCdzIGxpa2UgYSBtaXNzaW5nIHBpZWNlIG9mIHRoZSBwdXp6bGUuDQoN ClRvIHByb3ZlIHRoYXQgdGhlIGFwcHJvYWNoIGlzIHByYWN0aWNhbCBhbmQgdXNlZnVsLCBJIGhh dmUgY29sbGVjdGVkDQpyZWFsIHRlc3QgY2FzZXMNCnVuZGVyIHJlYWwgZGV2aWNlcyBhbmQgcG9z dGVkIHRoZSB0ZXN0IHJlc3VsdCBpbiB0aGUgY29tbWl0IG1lc3NhZ2UuDQpUaGVzZSBhcmUgcmVh bCBjYXNlcywgbm90IG15IGltYWdpbmF0aW9uLg0KDQpbMV0gaHR0cHM6Ly9sa21sLm9yZy9sa21s LzIwMTkvMTIvMjUvNTMNCg0KDQp0aGFua3MgYWdhaW4gZm9yIHlvdXIgY29tbWVudHMNCg0KICBN aWxlcw0K