From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:56126)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <sw@weilnetz.de>) id 1YRRfM-00013A-VD
	for qemu-devel@nongnu.org; Fri, 27 Feb 2015 15:37:45 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <sw@weilnetz.de>) id 1YRRfI-00006h-Lz
	for qemu-devel@nongnu.org; Fri, 27 Feb 2015 15:37:44 -0500
Received: from [2a03:4000:1::4e2f:c7ac:d] (port=38160
	helo=v220110690675601.yourvserver.net)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <sw@weilnetz.de>) id 1YRRfI-00006F-Ge
	for qemu-devel@nongnu.org; Fri, 27 Feb 2015 15:37:40 -0500
Message-ID: <54F0D587.3030708@weilnetz.de>
Date: Fri, 27 Feb 2015 21:37:27 +0100
From: Stefan Weil <sw@weilnetz.de>
MIME-Version: 1.0
References: <1425045947-9271-1-git-send-email-mreitz@redhat.com>	<20150227165723.GB32542@stefanha-thinkpad.redhat.com>	<54F0A86E.7000608@weilnetz.de>
	<54F0A957.5090906@redhat.com>	<54F0B26E.2020000@weilnetz.de>
	<54F0B2E5.9020800@redhat.com> <54F0B38C.80908@weilnetz.de>
	<54F0B449.1050106@redhat.com> <54F0BD84.2060606@redhat.com>
	<54F0D1BB.8090703@weilnetz.de> <54F0D226.7040509@redhat.com>
In-Reply-To: <54F0D226.7040509@redhat.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] [PATCH v2] block/vdi: Add locking for parallel
	requests
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: Max Reitz <mreitz@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org, qemu-block@nongnu.org, qemu-stable@nongnu.org

Am 27.02.2015 um 21:23 schrieb Max Reitz:
> On 2015-02-27 at 15:21, Stefan Weil wrote:
>> Am 27.02.2015 um 19:55 schrieb Max Reitz:
>>> On 2015-02-27 at 13:15, Max Reitz wrote:
>>>> On 2015-02-27 at 13:12, Stefan Weil wrote:
>>>>> Am 27.02.2015 um 19:09 schrieb Max Reitz:
>>>>>> It always fails for me. Do you have an SSD?
>>>>> On the real machine: yes. On the virtual machine: maybe.
>>>>
>>>> I don't, so maybe that's the issue. But running it in tmpfs doesn't 
>>>> change anything for me, still fails (every time).
>>>
>>> And now it doesn't fail any more on my HDD (but still in tmpfs). Great.
>>>
>>> How about this test case (which is in line with what Paolo 
>>> identified is the potential problem)? :-)
>>>
>>> Max
>>
>>
>> No failure with the new one, too.
>
> Hm, have you tried it multiple times?
>
> Max

I tried it only a few times. While running it in a loop I now get failures.

Stefan