From owner-freebsd-stable@freebsd.org Mon Apr 9 19:27:47 2018 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 55B21F9C7C6 for ; Mon, 9 Apr 2018 19:27:47 +0000 (UTC) (envelope-from mike@sentex.net) Received: from smarthost2.sentex.ca (smarthost2.sentex.ca [IPv6:2607:f3e0:80:80::2]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "smarthost.sentex.ca", Issuer "smarthost.sentex.ca" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id ECA9D6A065 for ; Mon, 9 Apr 2018 19:27:46 +0000 (UTC) (envelope-from mike@sentex.net) Received: from lava.sentex.ca (lava.sentex.ca [IPv6:2607:f3e0:0:5::11]) by smarthost2.sentex.ca (8.15.2/8.15.2) with ESMTPS id w39JRktK008285 (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Mon, 9 Apr 2018 15:27:46 -0400 (EDT) (envelope-from mike@sentex.net) Received: from [192.168.43.26] (saphire3.sentex.net [192.168.43.26]) by lava.sentex.ca (8.15.2/8.15.2) with ESMTP id w39JRiQo055842 for ; Mon, 9 Apr 2018 15:27:44 -0400 (EDT) (envelope-from mike@sentex.net) To: FreeBSD-STABLE Mailing List From: Mike Tancsa Subject: devd out of swap space ? (zfs arc related ?) Openpgp: preference=signencrypt Organization: Sentex Communications Message-ID: Date: Mon, 9 Apr 2018 15:27:45 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.78 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Apr 2018 19:27:47 -0000 On one of my internal nfs test boxes, I have noticed that kernels from March 28th and April 6th r332100 ended up with devd running out of swap space and being killed at some point. First time I thought perhaps a fluke due to some stress testing I was doing. But I left the box running over the weekend and Sat AM it died at 3:51am (perhaps when periodic runs?) I have lots of free memory, however, ARC is chewing up 27G of the 32G. CPU: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle Mem: 800K Active, 15M Inact, 9964K Laundry, 30G Wired, 516M Free ARC: 28G Total, 4996M MFU, 23G MRU, 5440K Anon, 78M Header, 593M Other 27G Compressed, 28G Uncompressed, 1.04:1 Ratio Swap: 20G Total, 21M Used, 20G Free Anyone else seen anything like this on a recent RELENG11 STABLE ? ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 x203 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada