From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JToR4-00009g-V2 for qemu-devel@nongnu.org; Mon, 25 Feb 2008 20:16:47 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JToR2-00009C-AB for qemu-devel@nongnu.org; Mon, 25 Feb 2008 20:16:45 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JToR2-000099-4e for qemu-devel@nongnu.org; Mon, 25 Feb 2008 20:16:44 -0500 Received: from smtp119.sbc.mail.sp1.yahoo.com ([69.147.64.92]) by monty-python.gnu.org with smtp (Exim 4.60) (envelope-from ) id 1JToR1-0007De-Jx for qemu-devel@nongnu.org; Mon, 25 Feb 2008 20:16:43 -0500 Date: Mon, 25 Feb 2008 17:16:39 -0800 From: Chris Wedgwood Subject: Re: [Qemu-devel] [PATCH] ide.c make write cacheing controllable by guest Message-ID: <20080226011639.GA20401@puku.stupidest.org> References: <18371.1341.577787.909764@mariner.uk.xensource.com> <20080225205040.GA18613@shareable.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080225205040.GA18613@shareable.org> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On Mon, Feb 25, 2008 at 08:50:40PM +0000, Jamie Lokier wrote: > On Linux (and other host OSes), fdatsync() and fsync() don't always > commit data to hard storage; it sometimes only commits it to the hard > drive cache. That's a filesystem bug IMO. People should be able to use f[data]sync with some level onf confidence or else it's basically pointless.