From owner-freebsd-current@FreeBSD.ORG Tue May 19 19:43:26 2009 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CD4361065676 for ; Tue, 19 May 2009 19:43:26 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: from yw-out-2324.google.com (yw-out-2324.google.com [74.125.46.29]) by mx1.freebsd.org (Postfix) with ESMTP id 7943F8FC17 for ; Tue, 19 May 2009 19:43:26 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: by yw-out-2324.google.com with SMTP id 9so6508ywe.13 for ; Tue, 19 May 2009 12:43:25 -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=lZw5cL7NeihD4ERxWt22v6zjRlqZAix9+RRj2FaD6Ik=; b=ZDX/M8/Bxj92+oBiIHmxABB31U2GRSjdTygYZhnxV2r0gREo/Fo6CuA2hZhIR0sF3v rc/TldisZ316fW3lPXoOmjBFzGbyekl3j32nUPXH2xUcIiFS1t2GqA6KfId1QCHvO7Dp 57TGh1w+QSnYiIK3qbrVCMmfei/fXZfWYi24E= 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=YG1k569vqxm1sC/jBlVoG+XfwBAdtkh7G+kne6JBnjedUcuSgKkLvyEi6MDdhUOspA tgt4Xk57hZ/bYKXd8ydMKann8yTdZMPvaIHp2ngvcx5XTqTkvI2Bc11ISX7ueD6+YxxU isFVlz5piBu+Xd692oOUcD3SVHBdjGlySHWIA= MIME-Version: 1.0 Sender: mat.macy@gmail.com Received: by 10.100.3.13 with SMTP id 13mr809197anc.75.1242762180238; Tue, 19 May 2009 12:43:00 -0700 (PDT) In-Reply-To: <4A88C71B-B338-4031-B591-FED323E067DC@wanderview.com> References: <20090518145614.GF82547@egr.msu.edu> <3c1674c90905181659g1d20f0f1w3f623966ae4440ec@mail.gmail.com> <20090519012202.GR82547@egr.msu.edu> <3c1674c90905181826p787a346cie90429324444a9c4@mail.gmail.com> <1F20825F-BD11-40D1-9024-07F6E707DD08@wanderview.com> <3c1674c90905181945g179173b9rb064e8b37ba7148@mail.gmail.com> <68B339AA-75CF-41FC-9E09-81D20D6F1FBA@wanderview.com> <3c1674c90905182012g63c3010bjf9cd7f0a2104966c@mail.gmail.com> <4A88C71B-B338-4031-B591-FED323E067DC@wanderview.com> Date: Tue, 19 May 2009 12:43:00 -0700 X-Google-Sender-Auth: a8992f9b49aa3c44 Message-ID: <3c1674c90905191243h4c188c93j71d68b060e54dbf5@mail.gmail.com> From: Kip Macy To: Ben Kelly Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Adam McDougall , current@freebsd.org, Larry Rosenman Subject: Re: Fatal trap 12: page fault panic with recent kernel with ZFS 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: Tue, 19 May 2009 19:43:27 -0000 > I thought I was referring to that too. =A0:-) =A0I guess I thought signal= ing the > pageout daemon to move vnodes from active to inactive was the way to do > that. =A0Are you saying there is another caching layer of vnodes going on= in > zfs? =A0I'll look around for that this evening. I apologize. Again you are correct. However, I don't see that helping. The VM doesn't associate arc cache pages with ZFS vnodes. So I don't see that helping in this case. We need some way of coupling the two. The challenge with the ARC is that it caches logical disk blocks, not file pages. Cheers, Kip