From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3260BC433F5 for ; Wed, 11 May 2022 22:06:40 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 995386B0074; Wed, 11 May 2022 18:06:39 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 945628D0001; Wed, 11 May 2022 18:06:39 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7E5426B0078; Wed, 11 May 2022 18:06:39 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 6B0EB6B0074 for ; Wed, 11 May 2022 18:06:39 -0400 (EDT) Received: from smtpin31.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 38324206E5 for ; Wed, 11 May 2022 22:06:39 +0000 (UTC) X-FDA: 79454847318.31.234328A Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by imf03.hostedemail.com (Postfix) with ESMTP id 2E95A20006 for ; Wed, 11 May 2022 22:06:29 +0000 (UTC) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 24BL116o015344; Wed, 11 May 2022 22:06:37 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=pp1; bh=OYvPMHDsbfxK5YIkv3uFo+MDF++6OacX1ZBizwrPWvk=; b=HFKund16gLQJkkHrBuZdWVzrThdpF85YwU3802iUPiiAYo5DX7avHJLx1+piAJcsoQu4 Ktz4E6WkuEWzUNBMCw9SoApFOUULsYCSvs14E+C3/A/g4lnVOqlLzs//0W8PelwK4NBN xct8hnCyLTHSilihwghR+sq+mDHyAZ17nhU45jHMAY9wtAVnO3wMUMZQtpdEVIaG2xhA /VjTSnCUfYED6bOzolNmwfYcFidHr8pqt/IkH9UZQ7rKFb2Gm8MqTrUG5mKUombqsvsi GBE8yKbBWjG8hmYbQFioyZBWTWIgRT/QjLQxXRPDZAneASGY9BPUuEHVTEo4QwlQGLBK RA== Received: from ppma02wdc.us.ibm.com (aa.5b.37a9.ip4.static.sl-reverse.com [169.55.91.170]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3g0meh1c22-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 May 2022 22:06:37 +0000 Received: from pps.filterd (ppma02wdc.us.ibm.com [127.0.0.1]) by ppma02wdc.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 24BM3EXe017322; Wed, 11 May 2022 22:06:36 GMT Received: from b03cxnp07027.gho.boulder.ibm.com (b03cxnp07027.gho.boulder.ibm.com [9.17.130.14]) by ppma02wdc.us.ibm.com with ESMTP id 3fwgd9y692-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 May 2022 22:06:36 +0000 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp07027.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 24BM6Zq827394478 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 11 May 2022 22:06:36 GMT Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E5C5B78067; Wed, 11 May 2022 22:06:35 +0000 (GMT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B8CA77805E; Wed, 11 May 2022 22:06:35 +0000 (GMT) Received: from [9.211.61.211] (unknown [9.211.61.211]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 11 May 2022 22:06:35 +0000 (GMT) Message-ID: Date: Wed, 11 May 2022 17:06:35 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [PATCH] mm: Add config option for default panic_on_oom value Content-Language: en-US To: Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20220511183400.47940-1-eajames@linux.ibm.com> <20220511145648.3c421ff592df32766319ea2d@linux-foundation.org> From: Eddie James In-Reply-To: <20220511145648.3c421ff592df32766319ea2d@linux-foundation.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: JPkKlzF7SbobKuVaa-i98JK8bli1Hagd X-Proofpoint-ORIG-GUID: JPkKlzF7SbobKuVaa-i98JK8bli1Hagd X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.858,Hydra:6.0.486,FMLib:17.11.64.514 definitions=2022-05-11_07,2022-05-11_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 bulkscore=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 spamscore=0 priorityscore=1501 impostorscore=0 mlxlogscore=922 clxscore=1015 phishscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2205110098 Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=ibm.com header.s=pp1 header.b=HFKund16; spf=pass (imf03.hostedemail.com: domain of eajames@linux.ibm.com designates 148.163.158.5 as permitted sender) smtp.mailfrom=eajames@linux.ibm.com; dmarc=pass (policy=none) header.from=ibm.com X-Rspam-User: X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 2E95A20006 X-Stat-Signature: erwnttatcgc34t1jca1t9dwxwwrjgmu9 X-HE-Tag: 1652306789-629077 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 5/11/22 16:56, Andrew Morton wrote: > On Wed, 11 May 2022 13:34:00 -0500 Eddie James wrote: > >> Add the option to kconfig and set the default panic_on_value. > Why? What are the use-cases and how does this benefit our users? If a distribution (for example some embedded system distribution) wants the system to always panic when OOM, they may as well configure their kernel to do it by default, rather than writing to /proc/sys/vm/panic_on_oom every boot. Maybe I'm missing another way to do what I want here? Thanks, Eddie