From owner-freebsd-current@FreeBSD.ORG Sun Jan 6 22:26:13 2008 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 DB41E16A421 for ; Sun, 6 Jan 2008 22:26:13 +0000 (UTC) (envelope-from hugo@barafranca.com) Received: from mail.barafranca.com (mail.barafranca.com [67.19.101.164]) by mx1.freebsd.org (Postfix) with ESMTP id C456413C455 for ; Sun, 6 Jan 2008 22:26:13 +0000 (UTC) (envelope-from hugo@barafranca.com) Received: from localhost (localhost [127.0.0.1]) by mail.barafranca.com (Postfix) with ESMTP id 5E286C4185; Sun, 6 Jan 2008 22:35:15 +0000 (UTC) Received: from mail.barafranca.com ([67.19.101.164]) by localhost (mail.barafranca.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 30739-07; Sun, 6 Jan 2008 22:34:37 +0000 (UTC) Received: from nexus.bsdlan.org (a213-22-38-76.cpe.netcabo.pt [213.22.38.76]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.barafranca.com (Postfix) with ESMTP id 5B972C4130; Sun, 6 Jan 2008 22:34:36 +0000 (UTC) Message-ID: <47815572.7060705@barafranca.com> Date: Sun, 06 Jan 2008 22:25:54 +0000 From: Hugo Silva User-Agent: Thunderbird 2.0.0.6 (X11/20070816) MIME-Version: 1.0 To: freebsd-current@FreeBSD.ORG References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: amavisd-new at barafranca.com X-Spam-Status: No, score=0 tagged_above=-1 required=4 tests=[none] X-Spam-Score: 0 X-Spam-Level: Cc: Ivan Voras Subject: Re: ZFS on AMD64 - any recent crashes? 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: Sun, 06 Jan 2008 22:26:13 -0000 Ivan Voras wrote: > Hi, > > In light of the recent discussion about ZFS stability, does anyone > still have kmem_map_too_small panics on AMD64 after tuning it (as > presented in http://wiki.freebsd.org/ZFSTuningGuide)? > > I'm interested in reports like this: > http://kerneltrap.org/mailarchive/freebsd-current/2007/9/21/271557 > (note that this report is for an untuned system). > > > > I have 3 amd64 systems & an i386 system (workstation) using ZFS; I've seen panics related to ZFS only on the i386 machine as expected. (Not to mention it's still -CURRENT from months ago :)) The amd64 servers are a home server (with jails hosted on ZFS), and two servers in Canada. Of these two, one is also a jail server (one of the jails is a mail server that'll be fairly loaded when it goes live) and the other is a backup server (still not in production). The most I've thrown at ZFS so far is buildworld & ports, so perhaps that's why I have not seen any problems yet. I'll inform the list if I encounter any such panics when the systems go live, but for the time being, I just wanted to say "no problems on amd64 here". As a sidenote, I use ganglia and I wrote a little script to export the arcsize sysctl to ganglia, from what I've seen it likes to go up til the limit, but will relinquish memory when there's pressure; I can see such ups and downs easily in the graphs if I stress another part of the system. Regards, Hugo