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[209.132.180.67]) by mx.google.com with ESMTP id q23si7983098otm.79.2020.03.31.08.51.51; Tue, 31 Mar 2020 08:52:06 -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; dkim=pass header.i=@nvidia.com header.s=n1 header.b=nxUYO+tX; 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=nvidia.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731170AbgCaPt3 (ORCPT + 99 others); Tue, 31 Mar 2020 11:49:29 -0400 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]:13298 "EHLO hqnvemgate24.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730548AbgCaPt2 (ORCPT ); Tue, 31 Mar 2020 11:49:28 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 31 Mar 2020 08:47:49 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 31 Mar 2020 08:49:26 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 31 Mar 2020 08:49:26 -0700 Received: from [10.2.57.122] (10.124.1.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 31 Mar 2020 15:49:25 +0000 Subject: Re: [PATCH 3/3] kernel/hung_task convert hung_task_panic boot parameter to sysctl To: Vlastimil Babka , Kees Cook CC: Luis Chamberlain , Iurii Zaikin , , , , Ivan Teterevkov , Michal Hocko , David Rientjes , Matthew Wilcox , "Eric W . Biederman" , "Guilherme G . Piccoli" , Alexey Dobriyan , Thomas Gleixner , Greg Kroah-Hartman , Christian Brauner References: <20200330115535.3215-1-vbabka@suse.cz> <20200330115535.3215-4-vbabka@suse.cz> <202003301042.97F3B00@keescook> <13ae67d8-4b31-db20-7ba4-1602906a291e@nvidia.com> <37b42835-6c4a-674b-9731-ecc9d0ff1703@suse.cz> From: John Hubbard X-Nvconfidentiality: public Message-ID: Date: Tue, 31 Mar 2020 08:49:25 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <37b42835-6c4a-674b-9731-ecc9d0ff1703@suse.cz> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL111.nvidia.com (172.20.187.18) To HQMAIL107.nvidia.com (172.20.187.13) Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1585669669; bh=cqXhut2aGqGvWiYl/OLkzlunQkw2ez3E0c3b4HvZBpg=; h=X-PGP-Universal:Subject:To:CC:References:From:X-Nvconfidentiality: Message-ID:Date:User-Agent:MIME-Version:In-Reply-To: X-Originating-IP:X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=nxUYO+tXSTN1iaxCgy/pHzoBKnUhJElZGaP1iZbqm02LPMOaKtkuA0nY/Cnc0BRvt FCQpb7FmR8p5KvUEUzNUz0IQgrSXm8ymdg2GgS2XtmNeFUIGZAhH8kxzuc0lh2vUhj z7SuI0idXXe+3Et5tAzVvtK5FcH+P8cZmCdRrk63ChxCdQLLDfeuW/vYyrxeKBCQQN FbTQuho+tWgBDm7zXAtlHrk0bq06nJZC+B4o15reMLu1IHQWI6+DB7lhjx3Fe7CTXY 8gdNxk9zFSdaWNNrxj13+0w2vHLGKYFKUsp09EVO67HXFxkPRy0RxndwWriyeW9Xv+ wWeTxV78RkADQ== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/31/20 12:27 AM, Vlastimil Babka wrote: ... > Patches 2+3 are only about handling the legacy boot params that have a sysctl > counterpart. > OK, I misread what those were for. >> In fact, the sysctl_aliases[] is (or could be) effectively the whitelist that Luis Chamberlain >> was requesting in another thread. A whitelist makes good sense, for the reasons Luis listed. >> As such, keeping it limited to items that we want, seems like the way to go, IMHO. > > See my reply there once I send it :) > Saw that, and it all sounds good now. thanks, -- John Hubbard NVIDIA