From owner-freebsd-questions@FreeBSD.ORG Thu Aug 28 19:46:08 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id B4A51C30 for ; Thu, 28 Aug 2014 19:46:08 +0000 (UTC) Received: from mail-ig0-x233.google.com (mail-ig0-x233.google.com [IPv6:2607:f8b0:4001:c05::233]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 888A01814 for ; Thu, 28 Aug 2014 19:46:08 +0000 (UTC) Received: by mail-ig0-f179.google.com with SMTP id r2so1491482igi.12 for ; Thu, 28 Aug 2014 12:46:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=gEj04jKGaAhBOyMatTSl88lZ2UMJ4OJfi+Pb4Ui2xwU=; b=i0LpKpvUFCQ0Zzzfo68WHZ6Hig3eSbLbY1u2nkM51cqSz1cgEJNB7nNDOV4fG7N64r dCUG/ByMRCb6+UszQ5RxJu0e1Z+0N4Y99lcc7ZD6owUa93ClbM2hGtKrBdtO8ss/lnj4 KcaFWqgBihBhL2WexMvXcWfIqv9ekUmaPMyb5oQwFHV73ZLhxCTNDL+vPRqCoAhEchuy uEGrBVGivqOEhrL0lIbW0La5A5wa1gwCQbwlzyCmPfLdZF/RdJNUfDhtt+FK5LGis51w 4yTt+aQ614mgzP5lMxip+S5THZzdlGm+L3vgZCRFlWr7xAAHfM8OsleGfbjJMaakE2PI zDXQ== MIME-Version: 1.0 X-Received: by 10.43.63.134 with SMTP id xe6mr3156553icb.97.1409255167928; Thu, 28 Aug 2014 12:46:07 -0700 (PDT) Received: by 10.107.15.1 with HTTP; Thu, 28 Aug 2014 12:46:07 -0700 (PDT) Date: Thu, 28 Aug 2014 21:46:07 +0200 Message-ID: Subject: Strange and sudden delay From: Oriental Sensation To: "freebsd-questions@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Aug 2014 19:46:08 -0000 Hi guys, No idea if this is related to FreeBSD but hopefully someone could help me. Couple of days ago I upgraded to 10.1-PRERELEASE and something happened. My configuration is a host with 2 jails -- the host runs unbound and the two jails use it to resolve. There's one local zone entitled "local" and few hosts to identify the jails: dbs.local, smtp.local, www.local, etc. One jail runs dovecot+postfix and the other runs a web server. There's a really strange thing going on because occasionally trying to telnet from the web server to the other jail (port 25 or 143) takes few seconds, but most of the time it takes a millisecond. I did a 'truss' and 'drill' and I am attaching 2 links to the logs: http://pastebin.com/rUrq10vd (look at line 276, I surrounded it with empty lines because that's where the delay happens -- this time for 2 seconds) http://pastebin.com/Q3W3dhLM (again, I inserted spaces around line #151 where 5 seconds in delay -- twice). By the way, running the same commands few times after, no delay is apparent. Anyone got an idea what on earth is causing this? Thanks in advance for any help. /OriS