From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:57181) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TaOi7-0007AT-ID for qemu-devel@nongnu.org; Mon, 19 Nov 2012 05:36:18 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TaOi4-0000qE-G7 for qemu-devel@nongnu.org; Mon, 19 Nov 2012 05:36:15 -0500 Received: from mail-pb0-f45.google.com ([209.85.160.45]:59979) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TaOi4-0000q9-9X for qemu-devel@nongnu.org; Mon, 19 Nov 2012 05:36:12 -0500 Received: by mail-pb0-f45.google.com with SMTP id mc8so3261106pbc.4 for ; Mon, 19 Nov 2012 02:36:11 -0800 (PST) Sender: Paolo Bonzini Message-ID: <50AA0B90.6060702@redhat.com> Date: Mon, 19 Nov 2012 11:36:00 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <589082222.7272963.1352241778123.JavaMail.root@redhat.com> <50A95A6A.4010109@profihost.ag> <50A9E991.2070609@redhat.com> <50A9FD86.3050400@profihost.ag> <50AA01C0.8030709@redhat.com> <50AA0314.6090208@profihost.ag> <50AA04A7.4080200@redhat.com> <50AA065F.5010602@profihost.ag> <50AA089B.7010400@redhat.com> <50AA0A2E.2090506@profihost.ag> In-Reply-To: <50AA0A2E.2090506@profihost.ag> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] scsi-hd with discard_granularity and unmap results in Aborted Commands List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Priebe - Profihost AG Cc: qemu-devel@nongnu.org Il 19/11/2012 11:30, Stefan Priebe - Profihost AG ha scritto: > > > But do you have any idea why it works with an iscsi / libiscsi backend? > In that case the kernel does not cancel the I/O. It tries to, but the command ultimately succeeds and the success response "undoes" the cancel. http://thread.gmane.org/gmane.comp.emulators.qemu/166232/focus=166316 See also the whole thread (and I think there as a part of it offlist, too). Paolo