From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58802) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X4Smo-0004Bj-Nx for qemu-devel@nongnu.org; Tue, 08 Jul 2014 06:38:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X4Smh-0005oa-2a for qemu-devel@nongnu.org; Tue, 08 Jul 2014 06:38:10 -0400 Received: from e06smtp10.uk.ibm.com ([195.75.94.106]:36550) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X4Smg-0005oM-Or for qemu-devel@nongnu.org; Tue, 08 Jul 2014 06:38:03 -0400 Received: from /spool/local by e06smtp10.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 8 Jul 2014 11:38:01 +0100 Received: from b06cxnps4075.portsmouth.uk.ibm.com (d06relay12.portsmouth.uk.ibm.com [9.149.109.197]) by d06dlp02.portsmouth.uk.ibm.com (Postfix) with ESMTP id D37DA2190046 for ; Tue, 8 Jul 2014 11:37:44 +0100 (BST) Received: from d06av07.portsmouth.uk.ibm.com (d06av07.portsmouth.uk.ibm.com [9.149.37.248]) by b06cxnps4075.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s68Abwbt23724106 for ; Tue, 8 Jul 2014 10:37:58 GMT Received: from d06av07.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av07.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s68Abvkq020045 for ; Tue, 8 Jul 2014 06:37:57 -0400 Message-ID: <53BBCA05.9070605@de.ibm.com> Date: Tue, 08 Jul 2014 12:37:57 +0200 From: Christian Borntraeger MIME-Version: 1.0 References: <53BA8B49.9050709@de.ibm.com> <53BB9B6F.4080201@de.ibm.com> <53BBB545.4080601@de.ibm.com> <53BBC403.1080500@de.ibm.com> In-Reply-To: <53BBC403.1080500@de.ibm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] another locking issue in current dataplane code? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Ming Lei Cc: Cornelia Huck , Kevin Wolf , Dominik Dingel , "qemu-devel@nongnu.org" , Stefan Hajnoczi On 08/07/14 12:12, Christian Borntraeger wrote: > On 08/07/14 11:09, Christian Borntraeger wrote: >> On 08/07/14 09:43, Ming Lei wrote: >>> On Tue, Jul 8, 2014 at 3:19 PM, Christian Borntraeger >>> wrote: >>>> Ping. >>>> >>>> has anyone seen a similar hang on x86? >> >> The problem seems to be, that for managedsave, we do a VM stop before we call the migration_state_notifier. to be verified. > > Yes. virsh suspend also hangs. Any ideas? > Finally found a solution. Merging belows merge request from upstream seems to fix my issues. I guess the plugging/unplugging fixed this implicetely,but I dont understand it yet. Since the problem is gone, I will no longer investigate... Bug fixes for QEMU 2.1-rc1. The following changes since commit 9d9de254c2b81b68cd48f2324cc753a570a4cdd8: MAINTAINERS: seccomp: change email contact for Eduardo Otubo (2014-07-03 12:36:15 +0100) are available in the git repository at: git://github.com/stefanha/qemu.git tags/block-pull-request for you to fetch changes up to f4eb32b590bf58c1c67570775eb78beb09964fad: qmp: show QOM properties in device-list-properties (2014-07-07 11:10:05 +0200)