From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46601) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cw3fg-00008b-M4 for qemu-devel@nongnu.org; Thu, 06 Apr 2017 05:25:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cw3fd-0000nB-Gv for qemu-devel@nongnu.org; Thu, 06 Apr 2017 05:25:40 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45596) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cw3fd-0000n1-AL for qemu-devel@nongnu.org; Thu, 06 Apr 2017 05:25:37 -0400 Date: Thu, 6 Apr 2017 10:25:31 +0100 From: "Dr. David Alan Gilbert" Message-ID: <20170406092530.GD2135@work-vm> References: <3d1c16a1-ec05-0367-e569-64a63b34f2e3@redhat.com> <940ff281-82cd-18cf-160e-c5234f65db18@redhat.com> <9d6c61bc-4a95-ce72-3565-e498f9c2b351@redhat.com> <7829c1dc-9138-c784-dcc5-3c46ec9b5c05@innervision.pl> <20170309122641.GE2480@work-vm> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] external snapshots freezes block device since qemu 2.8 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: John Snow Cc: Piotr Rybicki , qemu-devel@nongnu.org * John Snow (jsnow@redhat.com) wrote: > > > On 03/09/2017 07:26 AM, Dr. David Alan Gilbert wrote: > > * Piotr Rybicki (piotr.rybicki@innervision.pl) wrote: > >> Hello there. > >> > >> I discovered, that since qemu 2.8 , external snapshots (very similar to: > >> http://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit), > >> freezes block device after: > >> > >> # virsh blockcommit (...) > >> > >> There is no error message after completion of the command above. > >> I'm using gluster + ZFS fuse mount as a storage for a VM on gentoo. > >> libvirt debug showed nothing helpful. > >> With qemu <2.8 -: snapshots are working as expected. > >> > >> Is this a known issue? > >> Is it qemu or libvirt ? > >> > >> If it helps, how can i diagnose this further? > > > > I don't know of it, cc'd in jsnow. > > Have you tried bisecting? > > > > Dave > > > >> Thank You & Best regards > >> Piotr Rybicki > >> > > -- > > Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK > > > > I'm cleaning out my inbox and I seem to have missed this thread. Was > there any resolution? Not that I remember. Dave -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK