Received: by 2002:a25:1985:0:0:0:0:0 with SMTP id 127csp3834802ybz; Tue, 28 Apr 2020 01:02:09 -0700 (PDT) X-Google-Smtp-Source: APiQypIO1Fc7W4+msNMZA6WUgflynfaaRc2RvG79LKoi3dwk+MCdfS35w0M4QqsTWiQKi+1YMTl+ X-Received: by 2002:a17:907:435d:: with SMTP id oc21mr24138182ejb.100.1588060928978; Tue, 28 Apr 2020 01:02:08 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1588060928; cv=none; d=google.com; s=arc-20160816; b=V5/gha/s6t3WDywKhDumz5kPrbcQo4FtIvjPiUMW0+VW0JGJyQ87iKAVMMzXXQBCeH wV+Ihg3tjsRMjw86CEA39OVUuXpRi3pqVm5IbEqKztXuIyYpUE4ij+qDXe6TWOXHWdti 6GAmUVAi3hQn8iFNi8vqy5k44dP5o0EYwYwVbNTDN7CFI+nn8Sd6G5+R98x+GiShae0I xcAAcD0xyvYs14uHgmromOUPxi6ZwHoo89BxzFZJHbeH3PvZTOmBGenSYMvFbgyhu5R1 NOXBNtPDASFmGBhcC+cqM2nU451kCJEtFpkfMmkc3VmMITgcYmi6+0TaRHtdrZQZuJsq yHNA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:to:in-reply-to:cc:references:message-id :date:subject:mime-version:from:content-transfer-encoding :dkim-signature; bh=6AzO3J+pJc2HgGzurMjhzn7pGcLIvylFGEP//1RdqLA=; b=ANnwQFS3jHj48uK52ribBQqi5vB7luoKOXC0Vo+ngQG24/2wx47WIVDJX065YJGQGp /78jv1ywBTc4z2Ku99DTAD2kb0103/FrnAiWo0PHDkb1dIxCtRNnq60bEUprtq+iaEBK gviHKM97Y8gVOjTBUYqu1rrNZuT3tTlD10qjssVUqCtGxgTHs5GWMRIV5xXn0MGT6Yn8 kuoacfAaoVd/NR+BLaOu/JuyineyEiQuLaFRUc43ZZURJUX66NIVijrPI6WSbefSxI01 TR/L5KwDtRS2kXRF7PVF+Wpb9MdvtQEY6FihqaihltXptYuWD7O0qXBWJ9T945k+uH/S V/fQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@lca.pw header.s=google header.b=mRUxRr09; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id m2si1476821ejk.483.2020.04.28.01.01.46; Tue, 28 Apr 2020 01:02:08 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@lca.pw header.s=google header.b=mRUxRr09; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726551AbgD1H7m (ORCPT + 99 others); Tue, 28 Apr 2020 03:59:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57744 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726253AbgD1H7m (ORCPT ); Tue, 28 Apr 2020 03:59:42 -0400 Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 46D2FC03C1A9 for ; Tue, 28 Apr 2020 00:59:42 -0700 (PDT) Received: by mail-qk1-x741.google.com with SMTP id g74so20852065qke.13 for ; Tue, 28 Apr 2020 00:59:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=6AzO3J+pJc2HgGzurMjhzn7pGcLIvylFGEP//1RdqLA=; b=mRUxRr09nt8M+HiNy/fOSeVowb0w50LzwiLSb+mlfba70s6C8RH7ltYb+XmDeBPIZZ 8hFkm7CnRlBA6pDXCC5hp7PaaZZXCaL4SXqyP5qYonh6UG7KOA5z3u3Eo3jXNsqQXMah e68QtPLfJnv1QoK5ipUHR6eIuZ5w0VzJQKtOoYiiDw3khS06oesid3BlvC9qrxZtayKi k+BWK1gi3fryKoTpuNm6heWJNlVgYmZXA2wZ2Qi13ukbTU+ZecLz0xb4ny4LQKFCz/V1 9cHkkk2OypEH9WiBUAg4+bNH/3huleNNczDrb62eJoNtE5iK5m+yJDAifYRH2h75WCeQ Doww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:date:message-id:references:cc:in-reply-to:to; bh=6AzO3J+pJc2HgGzurMjhzn7pGcLIvylFGEP//1RdqLA=; b=ZA3x+9mawEsnB1+9z5xmcULUkud4KzMwKYtGT3TRvgeiDI8Q3YWlbOslmrlQ58xR7q Tu8CgHs+Ooz+J591TjUbA4JOOj8CebrOSHSnSvbgfw4l7ojK3ln/lBHH75Itxscq1K1Q 535lyfqidYQLbDm9205WSo4ZYfbLKsixsK7FkAyQzy2VVkIhrJMBD8vAfi4L9Nb/aJmC uj7kxlJ6XERbslBocxI67sbg6Qf0B1Te3Lwvfdpxtw5QOn1+5++L6Jcz1r/Cxdw0199g E8nQsBfCHajiMNzzylNGYvLm/QujWOAvXTPNORorj0LkRp/mZv/5w1D3xKdT8gsP6FzS FtOw== X-Gm-Message-State: AGi0PuYENDxe1tB/w9DJs1y2wFbK/WSCieOSKw36n9myc4AaOxQWKfLg nYDrkdVEk/dMvIW+urzzFWIiGQ== X-Received: by 2002:a37:e306:: with SMTP id y6mr14729735qki.173.1588060781365; Tue, 28 Apr 2020 00:59:41 -0700 (PDT) Received: from [192.168.1.183] (pool-71-184-117-43.bstnma.fios.verizon.net. [71.184.117.43]) by smtp.gmail.com with ESMTPSA id d4sm12620254qtw.25.2020.04.28.00.59.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Apr 2020 00:59:40 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable From: Qian Cai Mime-Version: 1.0 (1.0) Subject: Re: [mm/debug] fa6726c1e7: kernel_BUG_at_include/linux/mm.h Date: Tue, 28 Apr 2020 03:59:39 -0400 Message-Id: <86DB56DA-F2D4-4D79-A609-B427DC3366A8@lca.pw> References: <018a6f32-5cf6-b38c-7b8c-78b6e5c2d98d@c-s.fr> Cc: Anshuman Khandual , kernel test robot , Stephen Rothwell , Catalin Marinas , Ingo Molnar , Mike Rapoport , Vineet Gupta , Will Deacon , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , "Kirill A. Shutemov" , Paul Walmsley , Palmer Dabbelt , Andrew Morton , LKML , lkp@lists.01.org In-Reply-To: <018a6f32-5cf6-b38c-7b8c-78b6e5c2d98d@c-s.fr> To: Christophe Leroy X-Mailer: iPhone Mail (17D50) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Apr 28, 2020, at 2:12 AM, Christophe Leroy wr= ote: >=20 > Yes but Qian was saying: "Also, it is not very nice to introduce regressio= ns for robots when testing PAE because they always select CONFIG__EXPERT and= CONFIG_DEBUG_VM" >=20 > Here we see that the said regression is not introduced because they select= CONFIG__EXPERT and CONFIG_DEBUG_VM. This is because the robots explicitely s= elect DEBUG_VM_PGTABLE. Right, the robot just tried to be helpful, but never figured out this was a m= inefield.=