From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36521) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a0tgR-0005O8-7t for qemu-devel@nongnu.org; Mon, 23 Nov 2015 11:09:43 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a0tgP-0003O6-Va for qemu-devel@nongnu.org; Mon, 23 Nov 2015 11:09:39 -0500 Received: from mx1.redhat.com ([209.132.183.28]:60524) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a0tgP-0003Nj-RA for qemu-devel@nongnu.org; Mon, 23 Nov 2015 11:09:37 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 7241030C7A2 for ; Mon, 23 Nov 2015 16:09:37 +0000 (UTC) References: <1448273262-13845-1-git-send-email-peterx@redhat.com> From: Eric Blake Message-ID: <56533A40.3050102@redhat.com> Date: Mon, 23 Nov 2015 09:09:36 -0700 MIME-Version: 1.0 In-Reply-To: <1448273262-13845-1-git-send-email-peterx@redhat.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="WdvkQDbLBhaltgKIc73ibGgrdmCaX3s0h" Subject: Re: [Qemu-devel] [PATCH REPOST 0/2] Add basic "detach" support for dump-guest-memory List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Xu , qemu-devel@nongnu.org Cc: pbonzini@redhat.com, armbru@redhat.com, lcapitulino@redhat.com This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --WdvkQDbLBhaltgKIc73ibGgrdmCaX3s0h Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 11/23/2015 03:07 AM, Peter Xu wrote: > Currently, dump-guest-memory supports synchronous operation only. This = patch > sets are adding "detach" support for it (just like "migrate -d" for > migration). When "-d" is provided, dump-guest-memory command will retur= n > immediately without hanging user. This should be useful when the backen= d > storage for the dump file is very slow. Where is the added event that fires when the command completes? Where can a user poll for completion if they don't want to wait for an event? You cannot convert a blocking command to asynchronous without some user-visible way of tracking progress. --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --WdvkQDbLBhaltgKIc73ibGgrdmCaX3s0h Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJWUzpAAAoJEKeha0olJ0NqQMwIAI/sIhYN+BITvV6Z0uIQtYUR iYuHevb6BPp2VY2gsCNO8/EupxV4qqL+18H7FhVQuCBm1AM5Iz1/UgTPgtI0vQeD IAmFUOJxtcj1/gZPu8X83TnE921tgtwHNNw78iYz8wiRIDBddHSidC9WyMEzgFkm 3Ko903RUUxlcvcH+PrJMnoAVZbMiCifVjqwVsmIyHaIXoa8NDzRqlVhkglxZMHzD sNSgVGlgLud1mNJIstBFTrehzQJs3h7HT53sjTm22MYHKy0GyDTcbPk1TqKYYMTR XbrR78/hFLyy7UZDlC5F0gk0bYovItCg0lRG33yxN/gwYJ3YftBwKyhHADVKcHs= =Q+YS -----END PGP SIGNATURE----- --WdvkQDbLBhaltgKIc73ibGgrdmCaX3s0h--