From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=46047 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Pcfpo-0004pD-DQ for qemu-devel@nongnu.org; Tue, 11 Jan 2011 10:08:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Pcfpm-0000nI-Uf for qemu-devel@nongnu.org; Tue, 11 Jan 2011 10:08:32 -0500 Received: from mtagate4.uk.ibm.com ([194.196.100.164]:52245) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Pcfpm-0000mO-Ij for qemu-devel@nongnu.org; Tue, 11 Jan 2011 10:08:30 -0500 Received: from d06nrmr1707.portsmouth.uk.ibm.com (d06nrmr1707.portsmouth.uk.ibm.com [9.149.39.225]) by mtagate4.uk.ibm.com (8.13.1/8.13.1) with ESMTP id p0BF8QXq029376 for ; Tue, 11 Jan 2011 15:08:26 GMT Received: from d06av11.portsmouth.uk.ibm.com (d06av11.portsmouth.uk.ibm.com [9.149.37.252]) by d06nrmr1707.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p0BF8Tq31147134 for ; Tue, 11 Jan 2011 15:08:29 GMT Received: from d06av11.portsmouth.uk.ibm.com (loopback [127.0.0.1]) by d06av11.portsmouth.uk.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p0BF8QoD020573 for ; Tue, 11 Jan 2011 08:08:26 -0700 Date: Tue, 11 Jan 2011 15:08:16 +0000 From: Stefan Hajnoczi Message-ID: <20110111150813.GA13894@stefanha-thinkpad.localdomain> References: <20110111114917.GA8269@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110111114917.GA8269@redhat.com> Subject: [Qemu-devel] Re: [PATCH] ioeventfd: error handling cleanup List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Michael S. Tsirkin" Cc: qemu-devel@nongnu.org On Tue, Jan 11, 2011 at 01:49:18PM +0200, Michael S. Tsirkin wrote: > - Don't return status from start/stop functions where it's ignored > - report errors to make debugging easier > - assert on unexpected failures > - don't disable notifiers on error so that we'll > retry when guest driver restarts > > Signed-off-by: Michael S. Tsirkin Acked-by: Stefan Hajnoczi I tested migration of a running RHEL 6 install. I also tried running with TCG instead of KVM and we fall back to ioeventfd=off correctly there. Stefan