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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT 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 B0899C43387 for ; Mon, 14 Jan 2019 20:35:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D2FD20659 for ; Mon, 14 Jan 2019 20:35:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="cm2NLAWI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726946AbfANUfI (ORCPT ); Mon, 14 Jan 2019 15:35:08 -0500 Received: from mail.skyhub.de ([5.9.137.197]:59018 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726755AbfANUfI (ORCPT ); Mon, 14 Jan 2019 15:35:08 -0500 Received: from zn.tnic (p200300EC2BC4CA00255595821D34C4F7.dip0.t-ipconnect.de [IPv6:2003:ec:2bc4:ca00:2555:9582:1d34:c4f7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 1D7561EC027A; Mon, 14 Jan 2019 21:35:06 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1547498106; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=ojXxOskL0OW2grAWbQg+gv1scSqyRWX8gYLB34yBQFw=; b=cm2NLAWINNhxnVCeeBrOSVHxsc94zuch92ErHBVdjoGbCsUfW5RkvTL8wlZBpda8cywvea GXHAQVOKVqCo0zka8KnCFEbPdouyAREr0EQGFwf51pRE2idZgUjzrrQmUlZsCMIQM8OjPh cGHfraBAxsS5OYUwfUY0jTDIJ/mx9iM= Date: Mon, 14 Jan 2019 21:35:00 +0100 From: Borislav Petkov To: Dave Anderson Cc: Kazuhito Hagio , Lianbo Jiang , linux-kernel@vger.kernel.org, kexec@lists.infradead.org, tglx@linutronix.de, mingo@redhat.com, x86@kernel.org, akpm@linux-foundation.org, bhe@redhat.com, dyoung@redhat.com, linux-doc@vger.kernel.org Subject: Re: [PATCH 1/2 v6] kdump: add the vmcoreinfo documentation Message-ID: <20190114203500.GU2773@zn.tnic> References: <20190110121944.6050-1-lijiang@redhat.com> <20190114180142.GO2773@zn.tnic> <2126185079.69727846.1547492312033.JavaMail.zimbra@redhat.com> <20190114192144.GQ2773@zn.tnic> <134663991.69764038.1547494607008.JavaMail.zimbra@redhat.com> <20190114195940.GS2773@zn.tnic> <244986363.69770015.1547496453312.JavaMail.zimbra@redhat.com> <20190114201812.GT2773@zn.tnic> <221183717.69773903.1547497592624.JavaMail.zimbra@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <221183717.69773903.1547497592624.JavaMail.zimbra@redhat.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 14, 2019 at 03:26:32PM -0500, Dave Anderson wrote: > No. It needs *both* the vmlinux file and the vmcore file in order to read kernel > virtual memory, so just having a kernel virtual address is insufficient. > > So it's a chicken-and-egg situation. This particular --osrelease option is used > to determine *what* vmlinux file would be required for an actual crash analysis > session. Ok, that makes sense. I could've used that explanation when reviewing the documentation. Do you mind skimming through this: https://lkml.kernel.org/r/20190111145650.GG4729@zn.tnic in case we've missed explaining relevant usage - like that above - of some of the vmcoreinfo members? Thx. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.