From owner-freebsd-current@FreeBSD.ORG Mon Oct 18 04:26:37 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 6B92010657BB for ; Mon, 18 Oct 2010 04:26:37 +0000 (UTC) (envelope-from delphij@gmail.com) Received: from mail-iw0-f182.google.com (mail-iw0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id 3289A8FC22 for ; Mon, 18 Oct 2010 04:26:36 +0000 (UTC) Received: by iwn41 with SMTP id 41so699904iwn.13 for ; Sun, 17 Oct 2010 21:26:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=Uc5dBPSHxkS4pZmC+vfXqABKpxQ7pONS8SZDSCdQxuw=; b=Sq/sGn9sw9fGapmnlKLmX0GHmEO1mpANJPpNVbX8nLOB4G8ggspOGjfwfrEUP1+rkV Y+7DhYKi+tAaCIFhMHpKcTIYxfgidY4nVj/SgM9Bix+7GgLu27quZDVwPwuKScwvn50V /gHccn/g7arBJavt8OegkhIMT0sWVj2uG5ooM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=K8xeNdkTiyIH1IFSt3krQfwrdImKrO5LqBsrKOiSRrrsQtNB6eN21QzKGw8AEZAHVD llVVeBZeiYP589vqO3URz0Lw5tvABH/PO19GY6iByauaFskHAgJDavGTVJf+TXVKO4Yc uyXRsoP0E2wuIGsidJv5I4RSHDJ+ygnk3r/vs= MIME-Version: 1.0 Received: by 10.42.176.198 with SMTP id bf6mr511108icb.415.1287374288938; Sun, 17 Oct 2010 20:58:08 -0700 (PDT) Received: by 10.231.146.10 with HTTP; Sun, 17 Oct 2010 20:58:08 -0700 (PDT) In-Reply-To: <4CB639DB.3090907@fastmail.net> References: <4CB639DB.3090907@fastmail.net> Date: Sun, 17 Oct 2010 20:58:08 -0700 Message-ID: From: Xin LI To: Darren Reed Content-Type: text/plain; charset=UTF-8 Cc: freebsd-current@freebsd.org Subject: Re: 2TB HDD = TIMEOUT - READ_DMA48 .... 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, 18 Oct 2010 04:26:37 -0000 Hi, On Wed, Oct 13, 2010 at 3:59 PM, Darren Reed wrote: > As another body that today bought a 2TB HDD, I can confirm the presence > of kernel messages relating to READ_DMA48 with FreeBSD 8. > The drive in question is a Hitachi one, not a Samsung. > > Is it the drive, system or operating system? > > Well, the drive works without any such error with both Windows 7 and NetBSD > 5.1. > > So it looks like the finger is now pointing as a bug in FreeBSD... and if it > is fixed in HEAD then it needs to be merged into the branch for 8.1. Have you tried the new ahci(4) driver? What controller are you using by the way? Cheers, -- Xin LI http://www.delphij.net