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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 3C131C3279B for ; Sat, 7 Jul 2018 00:55:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CB1C822ACA for ; Sat, 7 Jul 2018 00:55:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CB1C822ACA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xmission.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 S1754054AbeGGAzn (ORCPT ); Fri, 6 Jul 2018 20:55:43 -0400 Received: from out01.mta.xmission.com ([166.70.13.231]:52328 "EHLO out01.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753450AbeGGAzl (ORCPT ); Fri, 6 Jul 2018 20:55:41 -0400 Received: from in02.mta.xmission.com ([166.70.13.52]) by out01.mta.xmission.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.87) (envelope-from ) id 1fbbVk-0000SR-Ex; Fri, 06 Jul 2018 18:55:40 -0600 Received: from [97.119.167.31] (helo=x220.xmission.com) by in02.mta.xmission.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.87) (envelope-from ) id 1fbbVj-0004Aq-0N; Fri, 06 Jul 2018 18:55:40 -0600 From: ebiederm@xmission.com (Eric W. Biederman) To: Tetsuo Handa Cc: Kees Cook , Linus Torvalds , Linux Kernel Mailing List , Kexec Mailing List References: <1530871650-3582-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp> <945be212-8e82-9dd8-930f-4e5c11dcae77@i-love.sakura.ne.jp> Date: Fri, 06 Jul 2018 19:55:26 -0500 In-Reply-To: <945be212-8e82-9dd8-930f-4e5c11dcae77@i-love.sakura.ne.jp> (Tetsuo Handa's message of "Sat, 7 Jul 2018 08:35:28 +0900") Message-ID: <87zhz3sw3l.fsf@xmission.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-XM-SPF: eid=1fbbVj-0004Aq-0N;;;mid=<87zhz3sw3l.fsf@xmission.com>;;;hst=in02.mta.xmission.com;;;ip=97.119.167.31;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX1+sEQcyQSz5Ln9RLAPpnwEvrx7Atb2Ytog= X-SA-Exim-Connect-IP: 97.119.167.31 X-SA-Exim-Mail-From: ebiederm@xmission.com Subject: Re: [PATCH] uts: Don't randomize "struct uts_namespace". X-SA-Exim-Version: 4.2.1 (built Thu, 05 May 2016 13:38:54 -0600) X-SA-Exim-Scanned: Yes (on in02.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tetsuo Handa writes: > I'm waiting for response from makedumpfile developers. > > But makedumpfile is a tool for saving kernel crash dump. > If makedumpfile cannot work, we cannot use kernel crash dump. I suspect the version string is comparable in size to the pointer to the version string and as such would be a better candidate to include in the handful of elf notes we provide for the mkdumpfile & it's ilk to bootstram. I assume getting the kernel's version string will be enough to track back to an individual vmlinux and figure out the layout of everything else. Eric From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from out01.mta.xmission.com ([166.70.13.231]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fbbWB-0003Wk-Pc for kexec@lists.infradead.org; Sat, 07 Jul 2018 00:56:09 +0000 From: ebiederm@xmission.com (Eric W. Biederman) References: <1530871650-3582-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp> <945be212-8e82-9dd8-930f-4e5c11dcae77@i-love.sakura.ne.jp> Date: Fri, 06 Jul 2018 19:55:26 -0500 In-Reply-To: <945be212-8e82-9dd8-930f-4e5c11dcae77@i-love.sakura.ne.jp> (Tetsuo Handa's message of "Sat, 7 Jul 2018 08:35:28 +0900") Message-ID: <87zhz3sw3l.fsf@xmission.com> MIME-Version: 1.0 Subject: Re: [PATCH] uts: Don't randomize "struct uts_namespace". List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Tetsuo Handa Cc: Kexec Mailing List , Linus Torvalds , Kees Cook , Linux Kernel Mailing List Tetsuo Handa writes: > I'm waiting for response from makedumpfile developers. > > But makedumpfile is a tool for saving kernel crash dump. > If makedumpfile cannot work, we cannot use kernel crash dump. I suspect the version string is comparable in size to the pointer to the version string and as such would be a better candidate to include in the handful of elf notes we provide for the mkdumpfile & it's ilk to bootstram. I assume getting the kernel's version string will be enough to track back to an individual vmlinux and figure out the layout of everything else. Eric _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec