From owner-svn-src-head@freebsd.org Sat Apr 15 01:59:55 2017 Return-Path: Delivered-To: svn-src-head@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 5B4FCD3DC20 for ; Sat, 15 Apr 2017 01:59:55 +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 26220179 for ; Sat, 15 Apr 2017 01:59:55 +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 v3F1xd5k009326; Fri, 14 Apr 2017 18:59:39 -0700 (PDT) (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 v3F1xd0q009325; Fri, 14 Apr 2017 18:59:39 -0700 (PDT) (envelope-from freebsd) From: "Rodney W. Grimes" Message-Id: <201704150159.v3F1xd0q009325@pdx.rh.CN85.dnsmgr.net> Subject: Re: svn commit: r316938 - head/sbin/savecore In-Reply-To: To: Larry Rosenman Date: Fri, 14 Apr 2017 18:59:39 -0700 (PDT) CC: rgrimes@freebsd.org, "Ngie Cooper (yaneurabeya)" , "src-committers@freebsd.org" , Alan Somers , "svn-src-all@freebsd.org" , Slawa Olhovchenkov , "svn-src-head@freebsd.org" , Ngie Cooper 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-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Apr 2017 01:59:55 -0000 > On 4/14/17, 8:35 PM, "Rodney W. Grimes" wrote: > > > Yeah, I have the following: > > borg.lerctr.org /home/ler $ swapctl -l > > Device: 1024-blocks Used: > > /dev/mfid0p3 8388608 0 > > /dev/mfid1p3 8388608 0 > > /dev/mfid2p3 8388608 0 > > /dev/mfid3p3 8388608 0 > > /dev/mfid4p3 8388608 0 > > /dev/mfid5p3 8388608 0 > > borg.lerctr.org /home/ler $ sysctl hw.physmem > > hw.physmem: 137368682496 > > borg.lerctr.org /home/ler $ > > > > SO 6 8G partitions (48G), but the dump is larger than 8G. > > Larry, > This is a very good concern and point given todays more > common huge memory foot prints and lots of spindles. I'll > keep this in they back of my mind as I tromp around in the > dump code. I have another solution that may work for you > and that is to use Netdump rather than swapdump. This > basically eliminates the trip to swap space and you end > up going to savecore style output on the netdump server. > > -- > Rod Grimes rgrimes@freebsd.org > > What does it take for NetDump to work to a FreeNAS (9.10 nightly) server since that?s what is ?next to? this server? As a netdump server FreeNAS would be fairly trivial to compile the netdump client code for. I should have running 11.0 and 10.2 code around some place. -- Rod Grimes rgrimes@freebsd.org