From owner-freebsd-fs@FreeBSD.ORG Wed Sep 8 08:07:58 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A1C2E1065672 for ; Wed, 8 Sep 2010 08:07:58 +0000 (UTC) (envelope-from mgamsjager@gmail.com) Received: from mail-qy0-f175.google.com (mail-qy0-f175.google.com [209.85.216.175]) by mx1.freebsd.org (Postfix) with ESMTP id 535378FC1D for ; Wed, 8 Sep 2010 08:07:57 +0000 (UTC) Received: by qyk31 with SMTP id 31so4526175qyk.13 for ; Wed, 08 Sep 2010 01:07:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:mime-version:received:in-reply-to :references:from:date:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=yjNey5BcP21kuPiJFHRvPsZaqX8yfQoM4UEwqUuOkP0=; b=hZ7pDFtHczbImx3ZtPFwPcAdnQBzO1ryR8BB24wVwo85T0b9NIIkF7V/yiJunZ54QY aB0egX4o8lPfkTUm8/E+0hCGTPQfSvcdjkxORvtjcmkJw/rxxIjFAo4ubB08eZGYCxa8 qtz3w9qv87EkspKYHLQnvUTuEhPXNQIEmbi0w= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; b=x3lGCW8pfim4RdKs5U+lK3MywUGOBuTyOtnZmK21dd+F6Nlr4Wroy7qP0HTX3Ok/ZF No4T9wKux7Gwal1YznE0YKbcUtpBmrJPGarapKUlmDwZSv57tQuuZo3c/f3UgwrEfK30 0RST79ZEyR1HGsvcGXNKZPphU5N2SGZoiKRmM= Received: by 10.229.2.35 with SMTP id 35mr3958503qch.271.1283933277318; Wed, 08 Sep 2010 01:07:57 -0700 (PDT) MIME-Version: 1.0 Received: by 10.229.241.213 with HTTP; Wed, 8 Sep 2010 01:07:27 -0700 (PDT) In-Reply-To: <20100908065222.GA2522@nautilus.vmks.ru> References: <20100907164204.GA2571@nautilus.vmks.ru> <20100908065222.GA2522@nautilus.vmks.ru> From: Matthias Gamsjager Date: Wed, 8 Sep 2010 10:07:27 +0200 Message-ID: To: Sergey Zaharchenko Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: quoted-printable Cc: freebsd-fs@freebsd.org Subject: Re: 8.1-RELEASE ZFS hangs X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Sep 2010 08:07:58 -0000 On Wed, Sep 8, 2010 at 8:52 AM, Sergey Zaharchenko wrote: > Hello Matthias! > > Tue, Sep 07, 2010 at 09:32:04PM +0200 you wrote: > >> Did you try 8 stable to see if it makes any difference? > > This server is to be going into production soon, so I'm not in the best > position to try things. I've however tried disabling prefetch and ZIL. > This helped ZFS pass bonnie++, but it deadlocked later on a repeated > make -j 4 buildworld. top shows: > > CPU: =9A0.0% user, =9A0.0% nice, =9A0.0% system, =9A0.0% interrupt, =9A10= 0% idle > Mem: 194M Active, 32M Inact, 1844M Wired, 48M Cache, 523M Buf, 5799M Free > > 19285 root =9A =9A =9A =9A =9A =9A 1 =9A76 =9A =9A0 13060K =9A8876K zfs = =9A =9A 2 =9A 0:00 =9A0.00% cc1 > 19141 root =9A =9A =9A =9A =9A =9A 1 =9A76 =9A =9A0 13060K =9A8876K tx->t= x =9A1 =9A 0:00 =9A0.00% cc1 > 19745 root =9A =9A =9A =9A =9A =9A 1 =9A76 =9A =9A0 13052K =9A9116K tx->t= x =9A1 =9A 0:00 =9A0.00% cc1 > =9A1154 root =9A =9A =9A =9A =9A =9A 1 =9A44 =9A =9A0 =9A6896K =9A 980K t= x->tx =9A0 =9A 0:00 =9A0.00% syslogd > =9A2136 root =9A =9A =9A =9A =9A =9A 1 =9A44 =9A =9A0 =9A5808K =9A 812K z= io->i =9A2 =9A 0:00 =9A0.00% newsyslog > > etc. > > This, apart from anything else, may indicate that disabling the features > only masks the problems with ZFS, but doesn't eliminate them completely. > > Thanks for your input, > > -- > Sergey Zaharchenko > Could you give more information about the hardware you are using (disk controller in particular) and /boot/loader.conf output.