From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([208.118.235.92]:33568)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <pbonzini@redhat.com>) id 1TaPLP-00071C-1A
	for qemu-devel@nongnu.org; Mon, 19 Nov 2012 06:16:54 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <pbonzini@redhat.com>) id 1TaPLL-0002g3-Vk
	for qemu-devel@nongnu.org; Mon, 19 Nov 2012 06:16:50 -0500
Received: from mx1.redhat.com ([209.132.183.28]:51435)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <pbonzini@redhat.com>) id 1TaPLL-0002fz-Nn
	for qemu-devel@nongnu.org; Mon, 19 Nov 2012 06:16:47 -0500
Message-ID: <50AA151A.7030008@redhat.com>
Date: Mon, 19 Nov 2012 12:16:42 +0100
From: Paolo Bonzini <pbonzini@redhat.com>
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> <50AA0B90.6060702@redhat.com>
	<50AA1085.6000106@profihost.ag>
In-Reply-To: <50AA1085.6000106@profihost.ag>
Content-Type: text/plain; charset=ISO-8859-15
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] scsi-hd with discard_granularity and unmap results
 in Aborted Commands
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
Cc: qemu-devel@nongnu.org

Il 19/11/2012 11:57, Stefan Priebe - Profihost AG ha scritto:
> Yeah thats my old thread regarding iscsi und unmap but this works fine
> now since you patched qemu.

It still causes hangs no?  Though it works apart from that.

Paolo

> Stefan
> 
> Am 19.11.2012 11:36, schrieb Paolo Bonzini:
>> 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
>>