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[209.132.180.67]) by mx.google.com with ESMTP id l14si3000482oii.37.2020.01.27.03.59.48; Mon, 27 Jan 2020 04:00:01 -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; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730041AbgA0Knk (ORCPT + 99 others); Mon, 27 Jan 2020 05:43:40 -0500 Received: from www262.sakura.ne.jp ([202.181.97.72]:50114 "EHLO www262.sakura.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727925AbgA0Knk (ORCPT ); Mon, 27 Jan 2020 05:43:40 -0500 Received: from fsav102.sakura.ne.jp (fsav102.sakura.ne.jp [27.133.134.229]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id 00RAh5iL081253; Mon, 27 Jan 2020 19:43:05 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav102.sakura.ne.jp (F-Secure/fsigk_smtp/550/fsav102.sakura.ne.jp); Mon, 27 Jan 2020 19:43:05 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/fsav102.sakura.ne.jp) Received: from [192.168.1.9] (softbank126040062084.bbtec.net [126.40.62.84]) (authenticated bits=0) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTPSA id 00RAgwbk081074 (version=TLSv1.2 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 27 Jan 2020 19:43:04 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Subject: Re: [PATCH 1/1] mm: sysctl: add panic_on_mm_error sysctl To: Grzegorz Halat Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-doc@vger.kernel.org, ssaner@redhat.com, atomlin@redhat.com, oleksandr@redhat.com, vbendel@redhat.com, kirill@shutemov.name, khlebnikov@yandex-team.ru, borntraeger@de.ibm.com, Andrew Morton , Iurii Zaikin , Kees Cook , Luis Chamberlain , Jonathan Corbet References: <20200127101100.92588-1-ghalat@redhat.com> From: Tetsuo Handa Message-ID: <063e702f-dc5f-b0ca-fe26-508a9f1e8e9a@I-love.SAKURA.ne.jp> Date: Mon, 27 Jan 2020 19:42:56 +0900 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200127101100.92588-1-ghalat@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/01/27 19:11, Grzegorz Halat wrote: > diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst > index def074807cee..2fecd6b2547e 100644 > --- a/Documentation/admin-guide/sysctl/kernel.rst > +++ b/Documentation/admin-guide/sysctl/kernel.rst > @@ -61,6 +61,7 @@ show up in /proc/sys/kernel: > - overflowgid > - overflowuid > - panic > +- panic_on_mm_error Maybe panic_on_inconsistent_mm is better, for an MM error sounds too generic (e.g. is page allocation failure an error, is OOM killer an error, is NULL pointer dereference an error, is use-after-free access an error) ? Also, should this be in /proc/sys/vm/ than /proc/sys/kernel/ ? > - panic_on_oops > - panic_on_stackoverflow > - panic_on_unrecovered_nmi