From owner-svn-src-user@freebsd.org Mon Jan 15 00:51:30 2018 Return-Path: Delivered-To: svn-src-user@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8D83AE6EAB9 for ; Mon, 15 Jan 2018 00:51:30 +0000 (UTC) (envelope-from freebsd@pdx.rh.CN85.dnsmgr.net) Received: from pdx.rh.CN85.dnsmgr.net (br1.CN84in.dnsmgr.net [69.59.192.140]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 51EEB75E0E; Mon, 15 Jan 2018 00:51:29 +0000 (UTC) (envelope-from freebsd@pdx.rh.CN85.dnsmgr.net) Received: from pdx.rh.CN85.dnsmgr.net (localhost [127.0.0.1]) by pdx.rh.CN85.dnsmgr.net (8.13.3/8.13.3) with ESMTP id w0F0pLOG052156; Sun, 14 Jan 2018 16:51:21 -0800 (PST) (envelope-from freebsd@pdx.rh.CN85.dnsmgr.net) Received: (from freebsd@localhost) by pdx.rh.CN85.dnsmgr.net (8.13.3/8.13.3/Submit) id w0F0pL5c052155; Sun, 14 Jan 2018 16:51:21 -0800 (PST) (envelope-from freebsd) From: "Rodney W. Grimes" Message-Id: <201801150051.w0F0pL5c052155@pdx.rh.CN85.dnsmgr.net> Subject: Re: svn commit: r327980 - user/markj/netdump In-Reply-To: <201801150029.w0F0THX8034785@repo.freebsd.org> To: Mark Johnston Date: Sun, 14 Jan 2018 16:51:21 -0800 (PST) CC: src-committers@freebsd.org, svn-src-user@freebsd.org Reply-To: rgrimes@freebsd.org X-Mailer: ELM [version 2.4ME+ PL121h (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII X-BeenThere: svn-src-user@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: "SVN commit messages for the experimental " user" src tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Jan 2018 00:51:30 -0000 > Author: markj > Date: Mon Jan 15 00:29:17 2018 > New Revision: 327980 > URL: https://svnweb.freebsd.org/changeset/base/327980 > > Log: > Create a branch for integrating changes needed for netdump. > > netdump is a facility that allows the kernel to transmit a kernel dump > over UDP to a remote server, instead of saving it to local media. This > is useful for diskless systems and for centralized collection of kernel > dumps in a lab environment. YEA! But far more than a lab it is VERY useful in large memory configuration server farms where tossing 400MB+ of disk on every machine for a dedicated swap partition because you might need to capture a dump is just not a good option. > > This implementation will provide a kernel netdump client, including > hooks for some NIC drivers, and support for configuration with > dumpon(8). Some extensions to the mbuf allocator make it possible to > allocate mbufs/clusters after a panic using a pre-allocated pool; > this is done without imposing any runtime overhead in the regular > allocator and without having to modify driver tx/rx code. The netdump > server component is available in the ports tree as ftp/netdumpd. > > Added: > - copied from r327979, head/ > Directory Properties: > user/markj/netdump/ (props changed) Thanks for finding another round tuit so you could finish this work! -- Rod Grimes rgrimes@freebsd.org