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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 78563C43441 for ; Thu, 22 Nov 2018 01:18:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3B21120645 for ; Thu, 22 Nov 2018 01:18:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=cisco.com header.i=@cisco.com header.b="TCXj16x3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B21120645 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=cisco.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403825AbeKVLzV (ORCPT ); Thu, 22 Nov 2018 06:55:21 -0500 Received: from alln-iport-8.cisco.com ([173.37.142.95]:41773 "EHLO alln-iport-8.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732372AbeKVLzV (ORCPT ); Thu, 22 Nov 2018 06:55:21 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=549; q=dns/txt; s=iport; t=1542849505; x=1544059105; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=Tf1ypSEORuU6mfstZ7lfCRr4hjIOBNtLBdqepAXdlIs=; b=TCXj16x3avnFNmmmMDGJ66qkk5MWOYzBxyxWg47ivFRQClh6qY7wiR1I iRwDURglK+bwXvKcI+1mwVbZRKvNhN1vn/IRvxpfIDGCBjoc+YDLTWzMa PvRI4K7ukcMK5b8AwP5nLo4wU/nz7qBuK/8dyo52xQztsQLPvjnb8d+nZ 0=; X-IronPort-AV: E=Sophos;i="5.56,263,1539648000"; d="scan'208";a="202270243" Received: from alln-core-11.cisco.com ([173.36.13.133]) by alln-iport-8.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Nov 2018 01:18:25 +0000 Received: from [10.24.99.63] ([10.24.99.63]) by alln-core-11.cisco.com (8.15.2/8.15.2) with ESMTP id wAM1IMC9027281; Thu, 22 Nov 2018 01:18:22 GMT Subject: Re: [PATCH v5] kernel/signal: Signal-based pre-coredump notification To: Andrew Morton Cc: Oleg Nesterov , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Peter Zijlstra , Arnd Bergmann , "Eric W. Biederman" , Khalid Aziz , Kate Stewart , Helge Deller , Greg Kroah-Hartman , Al Viro , Christian Brauner , Catalin Marinas , Will Deacon , Dave Martin , Mauro Carvalho Chehab , Michal Hocko , Rik van Riel , "Kirill A. Shutemov" , Roman Gushchin , Marcos Paulo de Souza , Dominik Brodowski , Cyrill Gorcunov , Yang Shi , Jann Horn , Kees Cook , x86@kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, "Victor Kamensky (kamensky)" , xe-linux-external@cisco.com, Stefan Strogin , Enke Chen References: <458c04d8-d189-4a26-729a-bb1d1d751534@cisco.com> <7741efa7-a3f8-62a1-ba52-613883164643@cisco.com> <84460a77-a111-404e-4bad-88104a6e246e@cisco.com> <20181026082812.GA10581@redhat.com> <21f678a8-4001-df36-c26e-e96cf203b1b1@cisco.com> <20181029111804.GA24820@redhat.com> <0c197608-3b7e-ffd1-8943-801a60beb917@cisco.com> <20181030164628.GD7643@redhat.com> <20181121163711.2c00316784d221eb1750edb0@linux-foundation.org> From: Enke Chen Message-ID: <44f0214e-93cf-ef19-f590-1a1a9e0f44b3@cisco.com> Date: Wed, 21 Nov 2018 17:18:25 -0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Auto-Response-Suppress: DR, OOF, AutoReply X-Outbound-SMTP-Client: 10.24.99.63, [10.24.99.63] X-Outbound-Node: alln-core-11.cisco.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Andrew: On 11/21/18 5:09 PM, Enke Chen wrote: > Hi, Andrew: > > On 11/21/18 4:37 PM, Andrew Morton wrote: >> Do we have other linux-specific signal extensions which could piggyback onto that? > > No. There are enough existing signals that an application can choose for this > purpose, such as SIGUSR1, SIGUSR1, and any of the RT signals. > > Thanks. -- Enke > Let me clarify: I meant this feature is complete by itself. But you seem to ask a somewhat different question, for which I am not aware of. Thanks. -- Enke