From: Avi Kivity <avi@redhat.com>
To: Jamie Lokier <jamie@shareable.org>
Cc: Mark McLoughlin <markmc@redhat.com>,
Anthony Liguori <aliguori@us.ibm.com>,
Arnd Bergmann <arndbergmann@googlemail.com>,
agl@linux.vnet.ibm.com, Arnd Bergmann <arnd@arndb.de>,
Juan Quintela <quintela@redhat.com>,
Dustin Kirkland <kirkland@canonical.com>,
qemu-devel@nongnu.org, Michael Tsirkin <mst@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu
Date: Sat, 07 Nov 2009 13:23:18 +0200 [thread overview]
Message-ID: <4AF558A6.4030804@redhat.com> (raw)
In-Reply-To: <20091107104402.GA10410@shareable.org>
On 11/07/2009 12:44 PM, Jamie Lokier wrote:
> Aiee - what's the plan? Can a running KVM be forked, as in into two
> separate processes to run the forked guests in parallel, or not?
>
kvm fds do not support fork(). Nothing prevents you from stopping the
guest, reading guest state, fork()ing, and creating a new VM in the
child with the same state, then restarting both instances.
qemu in general cannot be forked; the two instances would trample on
each others disk images, host network connections (i.e. vnc, X, the
monitor), guest network connections, etc.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2009-11-07 11:23 UTC|newest]
Thread overview: 125+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-04 0:28 [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu Anthony Liguori
2009-11-04 0:28 ` [Qemu-devel] [PATCH 1/4] Add basic version of bridge helper Anthony Liguori
2009-11-04 0:28 ` [Qemu-devel] [PATCH 2/4] Add access control support to qemu-bridge-helper Anthony Liguori
2009-11-04 13:38 ` [Qemu-devel] [PATCH 2/4] Add access control support toqemu-bridge-helper Krumme, Chris
2009-11-04 14:23 ` Anthony Liguori
2009-11-04 14:37 ` Krumme, Chris
2009-11-05 15:06 ` [Qemu-devel] [PATCH 2/4] Add access control support to qemu-bridge-helper Daniel P. Berrange
2009-11-04 0:28 ` [Qemu-devel] [PATCH 3/4] Add cap reduction support to enable use as SUID binary Anthony Liguori
2009-11-04 0:28 ` [Qemu-devel] [PATCH 4/4] Add support for -net bridge Anthony Liguori
2009-11-04 13:49 ` Krumme, Chris
2009-11-04 14:23 ` Anthony Liguori
2009-11-05 14:41 ` Avi Kivity
2009-11-05 14:45 ` Anthony Liguori
2009-11-05 14:49 ` Avi Kivity
2009-11-06 2:29 ` Jamie Lokier
2009-11-07 17:29 ` David Woodhouse
2009-11-07 22:11 ` Anthony Liguori
2009-11-08 8:27 ` Avi Kivity
2009-11-08 8:43 ` Arnd Bergmann
2009-11-08 8:55 ` Avi Kivity
2009-11-09 14:20 ` Anthony Liguori
2009-11-09 15:39 ` Jamie Lokier
2009-11-09 15:43 ` Anthony Liguori
2009-11-09 19:19 ` Jamie Lokier
2009-11-10 12:23 ` Avi Kivity
2009-11-04 12:02 ` [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu Alexander Graf
2009-11-04 14:42 ` Anthony Liguori
2009-11-04 15:02 ` Alexander Graf
2009-11-04 16:02 ` Anthony Liguori
2009-11-04 17:04 ` [Qemu-devel] " Michael S. Tsirkin
2009-11-04 19:48 ` Anthony Liguori
2009-11-04 20:04 ` Michael S. Tsirkin
2009-11-04 20:44 ` Anthony Liguori
2009-11-05 8:17 ` Michael S. Tsirkin
2009-11-05 13:05 ` Anthony Liguori
2009-11-04 22:40 ` Dustin Kirkland
2009-11-05 0:52 ` Anthony Liguori
2009-11-05 2:12 ` Dustin Kirkland
2009-11-05 4:12 ` [Qemu-devel] " Jamie Lokier
2009-11-05 8:21 ` Michael S. Tsirkin
2009-11-06 2:03 ` Jamie Lokier
2009-11-06 11:58 ` Arnd Bergmann
2009-11-06 20:26 ` Jamie Lokier
2009-11-08 11:55 ` Michael S. Tsirkin
2009-11-05 13:11 ` Anthony Liguori
2009-11-05 14:33 ` Avi Kivity
2009-11-05 14:36 ` Avi Kivity
2009-11-05 14:46 ` Daniel P. Berrange
2009-11-05 14:53 ` Anthony Liguori
2009-11-05 16:41 ` Jamie Lokier
2009-11-05 16:51 ` Daniel P. Berrange
2009-11-06 1:53 ` Jamie Lokier
2009-11-05 14:50 ` Anthony Liguori
2009-11-05 15:05 ` Avi Kivity
2009-11-05 15:50 ` Anthony Liguori
2009-11-05 16:02 ` Avi Kivity
2009-11-05 16:19 ` Anthony Liguori
2009-11-05 16:28 ` Avi Kivity
2009-11-05 16:37 ` Jamie Lokier
2009-11-05 16:45 ` Anthony Liguori
2009-11-05 17:20 ` Arnd Bergmann
2009-11-05 17:42 ` Anthony Liguori
2009-11-05 18:02 ` Arnd Bergmann
2009-11-05 19:54 ` Anthony Liguori
2009-11-05 18:14 ` Avi Kivity
2009-11-05 18:11 ` Avi Kivity
2009-11-05 19:58 ` Anthony Liguori
2009-11-06 1:48 ` Jamie Lokier
2009-11-06 7:22 ` Avi Kivity
2009-11-06 10:54 ` Jamie Lokier
2009-11-06 12:42 ` Anthony Liguori
2009-11-07 3:44 ` Jamie Lokier
2009-11-06 14:19 ` Anthony Liguori
2009-11-07 9:14 ` Avi Kivity
2009-11-07 9:43 ` Avi Kivity
2009-11-07 14:07 ` Anthony Liguori
2009-11-07 21:50 ` Arnd Bergmann
2009-11-07 22:12 ` Anthony Liguori
2009-11-08 8:11 ` Avi Kivity
2009-11-07 14:04 ` Anthony Liguori
2009-11-06 0:29 ` Anthony Liguori
2009-11-06 7:26 ` Avi Kivity
2009-11-06 16:09 ` Anthony Liguori
2009-11-07 9:27 ` Avi Kivity
2009-11-07 10:44 ` Jamie Lokier
2009-11-07 11:23 ` Avi Kivity [this message]
2009-11-09 19:35 ` Jamie Lokier
2009-11-10 12:25 ` Avi Kivity
2009-11-10 13:33 ` Jamie Lokier
2009-11-07 13:59 ` Anthony Liguori
2009-11-05 16:29 ` Jamie Lokier
2009-11-05 14:57 ` Anthony Liguori
2009-11-05 15:11 ` Avi Kivity
2009-11-05 15:33 ` Avi Kivity
2009-11-05 15:58 ` Anthony Liguori
2009-11-05 16:07 ` Avi Kivity
2009-11-06 2:19 ` Jamie Lokier
2009-11-05 16:06 ` Anthony Liguori
2009-11-05 16:15 ` Avi Kivity
2009-11-05 16:25 ` Anthony Liguori
2009-11-05 16:33 ` Avi Kivity
2009-11-05 16:50 ` Anthony Liguori
2009-11-05 17:16 ` Scott Tsai
2009-11-05 18:19 ` Avi Kivity
2009-11-06 2:16 ` Jamie Lokier
2009-11-05 18:19 ` Avi Kivity
2009-11-06 2:17 ` Jamie Lokier
2009-11-05 15:11 ` Daniel P. Berrange
2009-11-05 15:14 ` Avi Kivity
2009-11-05 15:20 ` Daniel P. Berrange
2009-11-05 15:59 ` Anthony Liguori
2009-11-05 16:20 ` Avi Kivity
2009-11-05 16:28 ` Anthony Liguori
2009-11-05 16:35 ` Avi Kivity
2009-11-05 16:53 ` Daniel P. Berrange
2009-11-05 17:03 ` Anthony Liguori
2009-11-05 17:16 ` Daniel P. Berrange
2009-11-06 2:08 ` Jamie Lokier
2009-11-05 17:26 ` Arnd Bergmann
2009-11-05 19:54 ` Gerhard Stenzel
2009-11-06 2:11 ` Jamie Lokier
2009-11-05 15:00 ` [Qemu-devel] " Mark McLoughlin
2009-11-05 15:14 ` Daniel P. Berrange
2009-11-05 15:28 ` Dustin Kirkland
2009-11-05 15:06 ` Arnd Bergmann
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