From owner-freebsd-questions@freebsd.org Sun Jan 20 22:13:40 2019 Return-Path: Delivered-To: freebsd-questions@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 C968E14A959B for ; Sun, 20 Jan 2019 22:13:40 +0000 (UTC) (envelope-from rwmaillists@googlemail.com) Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8449185A3A for ; Sun, 20 Jan 2019 22:13:39 +0000 (UTC) (envelope-from rwmaillists@googlemail.com) Received: by mail-wm1-x329.google.com with SMTP id p6so9059227wmc.1 for ; Sun, 20 Jan 2019 14:13:39 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=PVdBjO2mdSYgtlL7NwOJWspRBN2fRY6dCTO/aFtmHp0=; b=AHmnkBgCgULvnVlRaCMAHCg9PYivJdng9QcRwbdi5fbSD7E1wf6ITF7Qc1IVf0Qzi5 1XD4QJV8/K7U+6CAYN6q73UgQb9yGNSYdFJve+Q3ZwY669C6M/Anq/K0O8tp0LV8gld/ fEqofV9LRS9yJB86RIF6u10vSKtOWtaovweBU7fQWMVRv20z+yEXtsy8DnLDGQbybyGa bXHp7baMvjIypnF6n0yZsx8ZnrPcrp+b8Jp0A7rZ4K4Jo1fKCa9lAt2bbv0o+PAfu6tP ye2iH/8u/WgDXrTFfTVcUOByza50v5oUv3rTbUEJX2R/GBnUDJSS2qy+v9P38sKcym/W //cA== X-Gm-Message-State: AJcUukdXRSWCeZQzVvlFnAH63nCXEw5niSJFNmCa30XR2XkyhpniQNgp NLddJjErYnh1TCB6rC2K+U/5djOga90= X-Google-Smtp-Source: ALg8bN7qrxOq/MKK1jbEDoaSdWRvwPVJoom/le0JnYJiJYoYrlxFpKDjYM5kBlFCkWo5E1RlawxsEQ== X-Received: by 2002:a1c:c303:: with SMTP id t3mr21340029wmf.94.1548022418038; Sun, 20 Jan 2019 14:13:38 -0800 (PST) Received: from gumby.homeunix.com ([90.211.170.244]) by smtp.gmail.com with ESMTPSA id b18sm80079080wrw.83.2019.01.20.14.13.36 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 20 Jan 2019 14:13:37 -0800 (PST) Date: Sun, 20 Jan 2019 22:13:35 +0000 From: RW To: freebsd-questions@freebsd.org Subject: Re: The mysterious kern.maxswzone Message-ID: <20190120221335.45174d3b@gumby.homeunix.com> In-Reply-To: References: <20190116022046.GA45024@admin.sibptus.ru> <20190120094948.GA7774@admin.sibptus.ru> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; amd64-portbld-freebsd11.2) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 8449185A3A X-Spamd-Bar: ------ X-Spamd-Result: default: False [-6.63 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; FREEMAIL_FROM(0.00)[googlemail.com]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[googlemail.com:+]; DMARC_POLICY_ALLOW(-0.50)[googlemail.com,quarantine]; MX_GOOD(-0.01)[alt3.gmail-smtp-in.l.google.com,alt4.gmail-smtp-in.l.google.com,gmail-smtp-in.l.google.com,alt2.gmail-smtp-in.l.google.com,alt1.gmail-smtp-in.l.google.com]; NEURAL_HAM_SHORT(-0.98)[-0.978,0]; RECEIVED_SPAMHAUS_PBL(0.00)[244.170.211.90.zen.spamhaus.org : 127.0.0.10]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[googlemail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; DWL_DNSWL_NONE(0.00)[googlemail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[googlemail.com:s=20161025]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; IP_SCORE(-2.64)[ip: (-9.16), ipnet: 2a00:1450::/32(-2.13), asn: 15169(-1.85), country: US(-0.08)]; RCVD_IN_DNSWL_NONE(0.00)[9.2.3.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jan 2019 22:13:41 -0000 On Sun, 20 Jan 2019 17:01:50 +0000 Lorenzo Salvadore via freebsd-questions wrote: > > Victor Sudakov wrote: > > > > > I have a small 11.2-RELEASE-p8 i386 system with 512M swap and > > > 256M RAM: > > > > > > swapinfo > > > > > > ========= > > > > > > Device 1K-blocks Used Avail Capacity > > > /dev/mirror/gm0s1b 524288 29656 494632 6% > > > I guess it's not an extraordinary amount of swap for this amount > > > of RAM. However, on boot I see the warning: > > > warning: total configured swap (131072 pages) exceeds maximum > > > recommended amount (113792 pages). warning: increase > > > kern.maxswzone or reduce amount of swap. > > > > Anyone? > Assuming you just want to get rid of the warnings try to do as > suggested. According to the output of "sysctl -d kern.maxswzone" this > variabile regulates the maximum memory for swap metadata. In my case > it is 0: probably this means "do not set any maximum", "use as much > memory as you need". 0 means use the calculated default value. If you set kern.maxswzone above the default it's ignored, so there's little reason for setting it. I'm surprised the warning is showing below 2*RAM, it used to allow for 4*RAM.