From owner-freebsd-stable@FreeBSD.ORG Tue Mar 5 04:01:46 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id BA6EE46D for ; Tue, 5 Mar 2013 04:01:46 +0000 (UTC) (envelope-from prvs=1776ac14af=killing@multiplay.co.uk) Received: from mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) by mx1.freebsd.org (Postfix) with ESMTP id 442BFDAD for ; Tue, 5 Mar 2013 04:01:45 +0000 (UTC) Received: from r2d2 ([46.65.172.4]) by mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (MDaemon PRO v10.0.4) with ESMTP id md50002545216.msg for ; Tue, 05 Mar 2013 04:01:45 +0000 X-Spam-Processed: mail1.multiplay.co.uk, Tue, 05 Mar 2013 04:01:45 +0000 (not processed: message from valid local sender) X-MDDKIM-Result: neutral (mail1.multiplay.co.uk) X-MDRemoteIP: 46.65.172.4 X-Return-Path: prvs=1776ac14af=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk X-MDaemon-Deliver-To: freebsd-stable@freebsd.org Message-ID: <19488839B29A476C8F731EB8F419AF94@multiplay.co.uk> From: "Steven Hartland" To: "Karl Denninger" References: <513524B2.6020600@denninger.net> <1362449266.92708.8.camel@btw.pki2.com> <51355F64.4040409@denninger.net> <8C68812328E3483BA9786EF15591124D@multiplay.co.uk> <513568EE.80006@denninger.net> Subject: Re: ZFS "stalls" -- and maybe we should be talking about defaults? Date: Tue, 5 Mar 2013 04:01:47 -0000 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Cc: freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Mar 2013 04:01:46 -0000 ----- Original Message ----- From: "Karl Denninger" >> Then it happened I thought the machine had wedged, but minutes (not >> seconds) later, everything sprung into action again. > > That's exactly what I can reproduce here; the stalls are anywhere from a > few seconds to well north of a half-minute. It looks like the machine > is hung -- but it is not. Out of interest when this happens for you is syncer using lots of CPU? If its anything like my stalls you'll need top loaded prior to the fact. Regards Steve ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.