Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762269AbXEPLlc (ORCPT ); Wed, 16 May 2007 07:41:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758652AbXEPLlZ (ORCPT ); Wed, 16 May 2007 07:41:25 -0400 Received: from ik-out-1112.google.com ([66.249.90.178]:30220 "EHLO ik-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758236AbXEPLlY (ORCPT ); Wed, 16 May 2007 07:41:24 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=gHk/vxVa6qg/ohsIOvaiFLKLb+V+czw7Of/RFqiU1cYNJ0dQrUtxyXtd53vWS4qNcVEkqMr+bNARmyr4//u02MST0iW7zaHKat0EUmketSVR0hmTUe5rnyvXatcUg1xehuo43sSiRu74B8oio4B5WzxUOtoe/txW13ttuLFajQ8= Message-ID: <464AEDD0.3090304@gmail.com> Date: Wed, 16 May 2007 13:41:04 +0200 From: Tejun Heo User-Agent: Thunderbird 2.0.0.0 (X11/20070326) MIME-Version: 1.0 To: Rob Landley CC: Dave Jones , Francesco Pretto , Phillip Susi , linux-kernel Subject: Re: Weird hard disk noise on shutdown (bug #7674) References: <46489D3B.8050805@gmail.com> <20070515210804.GG25902@redhat.com> <200705160129.16048.rob@landley.net> In-Reply-To: <200705160129.16048.rob@landley.net> X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 843 Lines: 20 Hello, Rob Landley wrote: > Um, hang on. So libata can't reliably turn the system off without data loss > and potential damage to hardware unless userspace goes through a special song > and dance? And this is _not_ considered a defect in the kernel? Yeap, definitely a bug in the kernel and we're trying to fix it. Just for the record, we have _always_ issued FLUSH CACHE, so there hasn't been and won't be any data loss problem. The data loss problem was mentioned as why we can't do things completely inside kernel without updating userland shutdown(8) which issues STANDBYNOW. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/