From owner-freebsd-current@FreeBSD.ORG Mon Jan 7 10:30:06 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 C11ED16A417 for ; Mon, 7 Jan 2008 10:30:06 +0000 (UTC) (envelope-from ivoras@gmail.com) Received: from rv-out-0910.google.com (rv-out-0910.google.com [209.85.198.188]) by mx1.freebsd.org (Postfix) with ESMTP id 93D4E13C45A for ; Mon, 7 Jan 2008 10:30:06 +0000 (UTC) (envelope-from ivoras@gmail.com) Received: by rv-out-0910.google.com with SMTP id l15so7663282rvb.43 for ; Mon, 07 Jan 2008 02:30:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; bh=GLZ6f7IVZ/sf8ArfwgzH+kC/pnlVmin/1hSrjxseyaE=; b=mhllbKoAfTefE2LTskm0J5P5dtT35zV30J1wBgcutOV9KxUEdBWKfggplv8HATgjLD+ivwo771jwDiijC1qXSzu4F99TQ+RMzrN8LF0Na/sbxCSDu3zrThAZTX3lylc8FLDF0NftJMw5bC5gpu+ebPB9NoQXWHXNJ7XJYF30lKw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=IWkoYmfmo0KLOIlTFUKnEMrHx9mvAwO30aY8zv+QDgV9N9tAxWpfTO+ZceDM1vzre2b2VhW49VHjVwMBpk6LEqLAttOpLXMCWGh6OgiGFrydDwPzpUxwcSjrJCbpO+0gSmcgyaEwdsreYpz75uHxWX2TAtPuKxwfIzzUEFxvgmA= Received: by 10.140.172.6 with SMTP id u6mr10451493rve.192.1199701805296; Mon, 07 Jan 2008 02:30:05 -0800 (PST) Received: by 10.141.212.1 with HTTP; Mon, 7 Jan 2008 02:30:05 -0800 (PST) Message-ID: <9bbcef730801070230k14f6x567c8caf75d4944d@mail.gmail.com> Date: Mon, 7 Jan 2008 11:30:05 +0100 From: "Ivan Voras" Sender: ivoras@gmail.com To: "Pawel Jakub Dawidek" In-Reply-To: <20080107095952.GA25096@garage.freebsd.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080107095952.GA25096@garage.freebsd.pl> X-Google-Sender-Auth: c1942de9d2b8ab27 Cc: freebsd-current@freebsd.org Subject: Re: When will ZFS become stable? 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: Mon, 07 Jan 2008 10:30:06 -0000 On 07/01/2008, Pawel Jakub Dawidek wrote: > Let try to think how we can warn people clearly about proper tunning and > what proper tunning actually means. I think we should advise increasing > KVA_PAGES on i386 and not only vm.kmem_size. We could also warn that > running ZFS on 32bit systems is not generally recommended. Any other > suggestions? I'd suggest we do give all three warnings (KVA_PAGES, kmem_size, i386) at once, preferably both when the ZFS module loads and when a zpool is created. I think it's important that the tree pieces of information be given at the same time so the user doesn't need to hunt solutions after panics. Your comment that people are panicking more than ZFS is correct, but that illustrates the importance people give to having file system not crash on them :)