From owner-freebsd-current@FreeBSD.ORG Sat Feb 20 17:46:12 2010 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 005FC1065692 for ; Sat, 20 Feb 2010 17:46:12 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from mail-iw0-f185.google.com (mail-iw0-f185.google.com [209.85.223.185]) by mx1.freebsd.org (Postfix) with ESMTP id BBAC28FC13 for ; Sat, 20 Feb 2010 17:46:11 +0000 (UTC) Received: by iwn15 with SMTP id 15so1262858iwn.7 for ; Sat, 20 Feb 2010 09:46:11 -0800 (PST) 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; bh=w3RsC1G3y3Ja/+jggLJhm8FvaoKMVDfdQBmLPUChsS8=; b=VSVhD9c3uZ4bHMK11DZgoSiUrfxFg6r7yzqhBUf4EMGRTK8GB1oH5pUodaOHsg1aeY hVFHUbSzJMwR55KXHkGaV93JQ+oBOceHNBunsTD1tuuq5sUOxWTzvgCM4aJYz9EHqFpv U5QtG5E6RXF/EOXJrGSgO0MfZpQSDb0gjwfjs= 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; b=afe7vCk+i8ORBYVtyujHeqPp/oNXPEYkXDrGdcOyD7BJufU98Rt0d42juz0CWa8/JS z5I2EQvHOrmccHPIz6xkAfr25JJu+qow1EnqpnRPtPZeeBvPv1U9Frd/geHbTMjkTjsz XaEP8cnefBQtoXB0eQXqkWgONewz6dhpajsuw= MIME-Version: 1.0 Sender: asmrookie@gmail.com Received: by 10.231.160.205 with SMTP id o13mr57025ibx.13.1266687970875; Sat, 20 Feb 2010 09:46:10 -0800 (PST) In-Reply-To: References: Date: Sat, 20 Feb 2010 18:46:10 +0100 X-Google-Sender-Auth: e9c5b055fec8db3d Message-ID: <3bbf2fe11002200946h7480d203naabd7a49fd851f5a@mail.gmail.com> From: Attilio Rao To: Marcin Cieslak Content-Type: text/plain; charset=UTF-8 Cc: freebsd-current@freebsd.org Subject: Re: ZFS DEADLKRES 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: Sat, 20 Feb 2010 17:46:12 -0000 2010/2/18 Marcin Cieslak : > My r203753 amd64 laptop falls into the deadlock situation > every night while running periodic daily script. I am pretty > certain this is related to ZFS. > > I have enabled DEADLKRES in the kernel. I even have > a separate dump partition (not used for swap). May you reproduce the bug with WITNESS? If you can, you should enable DEADLKRES too and once it panics let extract a textdump(4) with the following commands: bt, ps, show alllocks, show pcpu, allthreads and report here. We can then comment if further investigation is due. Thanks, Attilio -- Peace can only be achieved by understanding - A. Einstein