From owner-freebsd-current@FreeBSD.ORG Fri Apr 17 15:27:30 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id ED97D1065672 for ; Fri, 17 Apr 2009 15:27:30 +0000 (UTC) (envelope-from artemb@gmail.com) Received: from mail-ew0-f171.google.com (mail-ew0-f171.google.com [209.85.219.171]) by mx1.freebsd.org (Postfix) with ESMTP id 7B5198FC1E for ; Fri, 17 Apr 2009 15:27:30 +0000 (UTC) (envelope-from artemb@gmail.com) Received: by ewy19 with SMTP id 19so936340ewy.43 for ; Fri, 17 Apr 2009 08:27:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type:content-transfer-encoding; bh=AMl5ILVOOOGoi26cMwBVFPk1sH/lLQb0gfgcIOVCzlA=; b=bXEshxPJM0VFnJgpwWVI89hVsbOT886Pu5I6dEkp1xOiIcaB6HUK4NgzZd3RapRzRm 7GyFoS5iRDGU1+vhHeneOZvFprWpwxrsNzmBp/73IjTXVAzLuRX/Pu/EI4EsmrykBKME dtWCwSI7fOMTzg6zXbAbVK1STwFKqhAcK7o6g= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=pBLCx1wIl1/8/5gc7zrmJ1mfvP0kELe1cT4hTEKe3zBvAaqqKQGoae4zl13+CfuJJR stB3KreClK11ED/yf2B8gwGIR60MIMKI2bMqrjdKlSB+RAdLT/Ce3blEukzhwZkDd74P L99AXloLOovz9LbBFkwSueVeO4Ix4tnD7F33o= MIME-Version: 1.0 Sender: artemb@gmail.com Received: by 10.210.22.16 with SMTP id 16mr758153ebv.74.1239982049586; Fri, 17 Apr 2009 08:27:29 -0700 (PDT) In-Reply-To: <200904170643.28862.ken@mthelicon.com> References: <7DEF7288-1304-4A64-8A23-BB03349653EA@wanderview.com> <200904170643.28862.ken@mthelicon.com> Date: Fri, 17 Apr 2009 08:27:29 -0700 X-Google-Sender-Auth: c9d941494213518c Message-ID: From: Artem Belevich To: Pegasus Mc Cleaft Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-current@freebsd.org Subject: Re: [patch] zfs livelock and thread priorities X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Apr 2009 15:27:31 -0000 > =A0 =A0 =A0 =A0I saw the same pausing of of a scrub on my machine as Arte= m is. It may be > coincidence, but I had disabled the zil and prefetch. After I re-enabled = the Ah! I have zil disabled (kernel used to eventually lock up under load) but prefetch is still on. I'll give zil another try. --Artem