From owner-freebsd-questions@freebsd.org Thu May 18 22:28:02 2017 Return-Path: Delivered-To: freebsd-questions@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 D8F42D71206 for ; Thu, 18 May 2017 22:28:02 +0000 (UTC) (envelope-from shamim.shahriar@gmail.com) Received: from mail-wm0-x232.google.com (mail-wm0-x232.google.com [IPv6:2a00:1450:400c:c09::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 6A562FF1 for ; Thu, 18 May 2017 22:28:02 +0000 (UTC) (envelope-from shamim.shahriar@gmail.com) Received: by mail-wm0-x232.google.com with SMTP id d127so67868570wmf.0 for ; Thu, 18 May 2017 15:28:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-transfer-encoding; bh=rBF8mnhVROZWFBdq90c3T1Y7LqUwMaDHGdHVK2cHhZA=; b=TiGceeTdS7cbHHGOjatcmbwinn6vhkv+hMgz2tDADvMHwtdx98LPWzBPwNNuRTmt5z b/GjZM6Xhwoq+c5D40pRDdBIjkLfpCp83/T1CsSa5gtiuC/+idBPS817bDxpa32tW/00 G/2wpal9wUHyoLomTltdUk2A/zeURPFuPwX/afDn4A/3lKJFqrGfqoYVOYEkbuHLpDju WiqlRJTV9mVRREPBWnXF7Yr6wZmkjtPjvbIxZ/FVYRiCBiNhefnv+ulXavdLRlpJ4Pke SxNPCyUqsYJ3aYimVkAiy9KReDsctDaQB2uCS2BXkTRj1huIbF/T0oxjui6ZhZPfwUck /+gQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=rBF8mnhVROZWFBdq90c3T1Y7LqUwMaDHGdHVK2cHhZA=; b=XN0ccMZZhKkZSoWFcYzt79a6dDZqg/nGwHTQ2c/1ApmSimjmMF8GHgB7GrOZEzS00Y O72CRkdM+r4R7joA9ERyYUHagq+7wdoK+8ebnZVWnpwhlBWg97BfrDIJ7+5a2s8aHLck HHe6VX7yTOazHqmg18r/kJ5tRNcEDfQ7+J18iIEIWGA9OIio9V8ehHhPntJ1S3vCId4L ul3gVWpVNTwVueh+JoLvh1VmqkPHnNPZtJO7f0sa6d+DqnOGdqlK45OLXJ1myuo/Ebag brieLLttGNuwgDZw6lpm0KSgafJy7L5yFXfYwVy5V54mQvYPs5FCCZLXUDS+Wn3zlsyV 0KOA== X-Gm-Message-State: AODbwcAAanlHuh/UKwEGO8SpHHJXKVjSMwtcVgapXOLxKSFn6EUMqY/f mxgMLeQvTs7jB/WT X-Received: by 10.28.193.202 with SMTP id r193mr3782463wmf.31.1495146480501; Thu, 18 May 2017 15:28:00 -0700 (PDT) Received: from osk.homenet ([2001:470:196e:13:f2de:f1ff:fed1:783c]) by smtp.googlemail.com with ESMTPSA id s29sm690463wrb.21.2017.05.18.15.27.59 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 18 May 2017 15:27:59 -0700 (PDT) Subject: Re: swap_pager on cloud server To: freebsd-questions@freebsd.org References: From: Shamim Shahriar Message-ID: Date: Thu, 18 May 2017 23:27:58 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 May 2017 22:28:02 -0000 On 17/05/2017 16:26, Adam Vande More wrote: > On Wed, May 17, 2017 at 10:19 AM, David Mehler > wrote: > >> Hello, >> >> Is the md0 a swap partition or is it anothe vnode device? >> >> > It's not a swap partition but needs to be removed because it's backed by > swap. If you attempt to remove the other two without removing it first it > will fail. > > man mdconfig > Good evening. Sorry for the late chime in, but I too had been having this issue. My VPS was on a Xen HVM, which had issues with vimage/vnet (server crashed every time I added epair devices to bridge), so they removed the Xen layer and i am now using em0 device for networking. However, from time to time the system shows symptoms similar to what OP described (I have a screenshot of the KVM console in the browser, which I can post if anyone is interested). My system is not on md device -- they are on ada device, and I have twice the size of RAM as swap space. What I have found to be more confusing, even though this particular VPS in London is supposed to have better spec than my very old VPS in Texas, the Texan one (FreeBSD 9.x, several jails but not in VNET) performs much better and is more resilient on resources than the FreeBSD 11.x VNET jails in London. Like the OP, I have to occasionally reset the server just to get my services back (including SSH). If you need me to run further tests or need more information, please let me know and I'll try my best to provide. Best regards