From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53712) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bAwn1-0006pv-FY for qemu-devel@nongnu.org; Thu, 09 Jun 2016 06:02:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bAwmu-0004ey-Sm for qemu-devel@nongnu.org; Thu, 09 Jun 2016 06:02:14 -0400 Date: Thu, 9 Jun 2016 06:02:04 -0400 (EDT) From: Paolo Bonzini Message-ID: <2017189082.21103178.1465466524655.JavaMail.zimbra@redhat.com> In-Reply-To: References: <574351CE.8000605@linux.vnet.ibm.com> <5756C152.2070007@linux.vnet.ibm.com> <83531311-babc-bfc7-d209-1796c3d0836e@redhat.com> <060c2c62-06b1-af28-0f63-78915b1e8136@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Qemu-block] coroutines: block: Co-routine re-entered recursively when migrating disk with iothreads List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: Fam Zheng , "Jason J. Herne" , qemu block , Juan Quintela , qemu-devel , Stefan Hajnoczi > BTW this doesn't mean that the blockjobs AioContext following problem > is solved. AioContexts can still change if the guest resets the > virtio device, for example. > > I suspect we'll still hit undefined behavior when that happens. I agree... :/ Paolo