From owner-freebsd-stable@freebsd.org Fri Aug 14 13:20:51 2015 Return-Path: Delivered-To: freebsd-stable@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 E74BA9B89F1 for ; Fri, 14 Aug 2015 13:20:51 +0000 (UTC) (envelope-from tundra@tundraware.com) Received: from oceanview.tundraware.com (oceanview.tundraware.com [104.236.38.227]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "oceanview.tundraware.com", Issuer "oceanview.tundraware.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id A44121FF9 for ; Fri, 14 Aug 2015 13:20:51 +0000 (UTC) (envelope-from tundra@tundraware.com) Received: from [192.168.0.2] (ozzie.tundraware.com [75.145.138.73]) (authenticated bits=0) by oceanview.tundraware.com (8.15.2/8.15.2) with ESMTPSA id t7EDFXR7040568 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Fri, 14 Aug 2015 08:15:36 -0500 (CDT) (envelope-from tundra@tundraware.com) Message-ID: <55CDE9EE.5090603@tundraware.com> Date: Fri, 14 Aug 2015 08:15:26 -0500 From: Tim Daneliuk User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 MIME-Version: 1.0 To: FreeBSD Stable Maling List Subject: Swap Questions Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3 (oceanview.tundraware.com [104.236.38.227]); Fri, 14 Aug 2015 08:15:36 -0500 (CDT) X-TundraWare-MailScanner-Information: Please contact the ISP for more information X-TundraWare-MailScanner-ID: t7EDFXR7040568 X-TundraWare-MailScanner: Found to be clean X-TundraWare-MailScanner-From: tundra@tundraware.com X-Spam-Status: No X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Aug 2015 13:20:52 -0000 I just built a 10.2 machine on a cloud-based VPS (Digital Ocean) that has 512M of memory and 1G of swap partition. I am seeing a ton of errors like this: Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(10): failed Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(14): failed Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(11): failed Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(6): failed Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(7): failed Aug 14 00:01:22 myhost last message repeated 2 times So, I added this to fstab (after creating /usr/swap0): md99 none swap sw,file=/usr/swap0 0 0 And then did this: swapon -aq But, when I do a swapinfo, all I can see is the "disk" swap partition that comes standard with the VPS: Device 1K-blocks Used Avail Capacity /dev/gpt/swapfs 1048576 456572 592004 44% Two questions: 1) Is this reasonable behavior from a machine wiht 512M of memory and a 1G swap partition? I am doing things like running clamscan and buildworld at the same time. That's why I tried to add space with a file. 2) Why doesn't the extra swap disk appear in the hostinfo output. TIA, ---------------------------------------------------------------------------- Tim Daneliuk tundra@tundraware.com PGP Key: http://www.tundraware.com/PGP/