Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754825AbZAKPbZ (ORCPT ); Sun, 11 Jan 2009 10:31:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751848AbZAKPbO (ORCPT ); Sun, 11 Jan 2009 10:31:14 -0500 Received: from nf-out-0910.google.com ([64.233.182.184]:46656 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751311AbZAKPbM (ORCPT ); Sun, 11 Jan 2009 10:31:12 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=GN1MJ7+JlClW5pxr7QMU/3Wlp1mb2lJMKrb9Wa2FB/h6dYIZKF16dxBIWzMm/9a202 AiME8UBbnnoT/uLzgBF2DyGHVD6Xh9u9jNQVdvozm3YEWCdUsAFiqDp9sW1wuh6RMjLA NXCXL4qnOWUblUU1ZrXeQolon57KCRWNOw5FQ= Message-ID: <170fa0d20901110731w7e1e3b1dvf880e9639411dbb7@mail.gmail.com> Date: Sun, 11 Jan 2009 10:31:09 -0500 From: "Mike Snitzer" To: "Andreas Dilger" Subject: Re: source line numbers with x86_64 modules? [Was: Re: [patch] measurements, numbers about CONFIG_OPTIMIZE_INLINING=y impact] Cc: "Theodore Tso" , "Ingo Molnar" , "Nicholas Miell" , "Linus Torvalds" , "jim owens" , "H. Peter Anvin" , "Chris Mason" , "Peter Zijlstra" , "Steven Rostedt" , paulmck@linux.vnet.ibm.com, "Gregory Haskins" , "Matthew Wilcox" , "Andi Kleen" , "Andrew Morton" , "Linux Kernel Mailing List" , linux-fsdevel , linux-btrfs , "Thomas Gleixner" , "Nick Piggin" , "Peter Morreale" , "Sven Dietrich" , sam@ravnborg.org, "Dave Anderson" In-Reply-To: <20090111101135.GA3306@webber.adilger.int> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <170fa0d20901100621m74680e0ewd1916c70f1636c9b@mail.gmail.com> <20090110153446.GA13976@elte.hu> <170fa0d20901101021s3b9a18e9qe6150c374efa4d6f@mail.gmail.com> <20090110211531.GD31579@mit.edu> <20090111101135.GA3306@webber.adilger.int> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1368 Lines: 26 On Sun, Jan 11, 2009 at 5:11 AM, Andreas Dilger wrote: > On Jan 10, 2009 16:15 -0500, Theodore Ts'o wrote: >> In my experience, there are very few kernel versions and hardware for >> which kdump works. I've talked to the people who have to make kdump >> work, and every 12-18 months, with a new set of enterprise kernels >> comes out, they have to go and fix kdump so it works again for the set >> of hardware that they care about, and for the kernel version involved. > > I'm sad that netconsole/netdump never made it big. It was fairly useful, > and extending the eth drivers to add the polling mode was trivial to do. > We were using that for a few years, but it got replaced by kdump and it > appears to be less usable IMHO. Less usable in terms of ease of configuration and use? Or reliability? In practice netdump's non-interrupt-driven polling mode proved fairly reliable but it seems to me kdump provides more reliable dumping than netdump. Because you're performing the kdump from a reliable new dump kernel (provided the initial kexec transition to the dump kernel works properly). Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/