From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36414) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1boQf8-000414-8t for qemu-devel@nongnu.org; Mon, 26 Sep 2016 03:49:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1boQf4-0007YY-5j for qemu-devel@nongnu.org; Mon, 26 Sep 2016 03:49:18 -0400 Received: from mx1.redhat.com ([209.132.183.28]:40426) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1boQf3-0007XP-Vg for qemu-devel@nongnu.org; Mon, 26 Sep 2016 03:49:14 -0400 Date: Mon, 26 Sep 2016 08:49:06 +0100 From: "Dr. David Alan Gilbert" Message-ID: <20160926074906.GA2029@work-vm> References: <1474658044-9479-1-git-send-email-dgilbert@redhat.com> <0a087a52-5495-a27e-f503-a2f04516d6bc@digitalocean.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0a087a52-5495-a27e-f503-a2f04516d6bc@digitalocean.com> Subject: Re: [Qemu-devel] [PATCH 0/3] RDMA error handling List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Michael R. Hines" Cc: qemu-devel@nongnu.org, amit.shah@redhat.com, quintela@redhat.com, michael@hinespot.com * Michael R. Hines (mrhines@digitalocean.com) wrote: > Reviewed-by: Michael R. Hines > > (By the way, I no longer work for IBM and no longer have direct access to RDMA hardware. If someone is willing to let me login to something that does in the future, I don't mind debugging things. I just don't have any hardware of my own anymore to debug, and the last time I tried to use software RDMA it was an unpleasurable experience.) Thanks; I did hear a rumour that SoftRoCE was going to go upstream, but it doesn't seem to have happened yet. Dave > > /* > * Michael R. Hines > * Senior Engineer, DigitalOcean. > */ > > On 09/23/2016 02:14 PM, Dr. David Alan Gilbert (git) wrote: > > From: "Dr. David Alan Gilbert" > > > > lp: https://bugs.launchpad.net/qemu/+bug/1545052 > > > > The RDMA code tends to hang if the destination dies > > in the wrong place; this series doesn't completely fix > > that, but in cases where the destination knows there's > > been an error, it makes sure it tells the source and > > that cleans up quickly. > > If the destination just dies, then the source still hangs > > and I still need to look at better ways to fix that. > > > > Dave > > > > Dr. David Alan Gilbert (3): > > migration/rdma: Pass qemu_file errors across link > > migration: Make failed migration load set file error > > migration/rdma: Don't flag an error when we've been told about one > > > > migration/rdma.c | 9 ++++++++- > > migration/savevm.c | 19 ++++++++++++------- > > 2 files changed, 20 insertions(+), 8 deletions(-) > > > -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK