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From: Jamie Lokier <jamie@shareable.org>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: qemu-devel@nongnu.org, Luiz Capitulino <lcapitulino@redhat.com>,
	Markus Armbruster <armbru@redhat.com>,
	Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>,
	Juan Quintela <quintela@redhat.com>
Subject: Re: [Qemu-devel] Re: [CFR 6/10] cont command
Date: Wed, 16 Jun 2010 18:22:03 +0100	[thread overview]
Message-ID: <20100616172203.GA30917@shareable.org> (raw)
In-Reply-To: <4C19044B.6010602@codemonkey.ws>

Anthony Liguori wrote:
> On 06/16/2010 11:17 AM, Juan Quintela wrote:
> >Consider the example that I showed you:
> >
> >(host A)		(host B)
> >launch qemu             launch qemu -incoming
> >migrate host B
> >                         .....
> >                         do your things
> >                         exit/poweroff/...
> >
> >At this point you have a qemu launched on machine A, with nothing on
> >machine B.  running "cont" on machine A, have disastreus consecuences,
> >and there is no way to prevent it :(
> >   
> 
> If there was a reasonable belief that it wouldn't result in disaster, I 
> would fully support you.  However, I can't think of any rational reason 
> why someone would do this.  I can't think of a better analogy to 
> shooting yourself in the foot.

That looks like a useful way to fork a guest for testing, if host B is
launched with -snapshot, or a copy of the disk image, or a qcow2 child of it.

Does it work? :-)

-- Jamie

  reply	other threads:[~2010-06-16 17:22 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-15 16:30 [Qemu-devel] [CFR 0/10] QMP specification review Anthony Liguori
2010-06-15 16:30 ` [Qemu-devel] [CFR 1/10] qmp: balloon command Anthony Liguori
2010-06-15 16:42   ` Anthony Liguori
2010-06-15 16:30 ` [Qemu-devel] [CFR 2/10] qmp: block_passwd command Anthony Liguori
2010-06-15 16:44   ` Anthony Liguori
2010-06-16 13:33     ` Kevin Wolf
2010-06-16 13:57       ` Daniel P. Berrange
2010-06-15 16:30 ` [Qemu-devel] [CFR 3/10] command Anthony Liguori
2010-06-15 16:30 ` [Qemu-devel] [CFR 4/10] command Anthony Liguori
2010-06-15 17:02   ` Anthony Liguori
2010-06-15 16:30 ` [Qemu-devel] [CFR 5/10] closefd command Anthony Liguori
2010-06-15 16:45   ` Anthony Liguori
2010-06-15 16:30 ` [Qemu-devel] [CFR 6/10] cont command Anthony Liguori
2010-06-15 16:46   ` Anthony Liguori
2010-06-16 13:11   ` [Qemu-devel] " Juan Quintela
2010-06-16 13:47     ` Anthony Liguori
2010-06-16 16:17       ` Juan Quintela
2010-06-16 17:05         ` Anthony Liguori
2010-06-16 17:22           ` Jamie Lokier [this message]
2010-06-16 22:25           ` Juan Quintela
2010-06-16 16:25     ` Daniel P. Berrange
2010-06-16 17:18       ` Anthony Liguori
2010-06-16 22:05         ` Juan Quintela
2010-06-16 22:26           ` Anthony Liguori
2010-06-16 23:00             ` Juan Quintela
2010-06-15 16:30 ` [Qemu-devel] [CFR 7/10] cpu command Anthony Liguori
2010-06-15 16:59   ` Anthony Liguori
2010-06-15 17:00   ` [Qemu-devel] " Jan Kiszka
2010-06-15 16:30 ` [Qemu-devel] [CFR 8/10] device_add command Anthony Liguori
2010-06-15 16:49   ` Anthony Liguori
2010-06-15 16:30 ` [Qemu-devel] [CFR 9/10] device_del command Anthony Liguori
2010-06-15 16:49   ` Anthony Liguori
2010-06-15 16:59   ` [Qemu-devel] " Jan Kiszka
2010-06-15 20:48     ` Miguel Di Ciurcio Filho
2010-06-15 21:14       ` Anthony Liguori
2010-06-15 16:30 ` [Qemu-devel] [CFR 10/10] eject command Anthony Liguori
2010-06-17 14:49 ` [Qemu-devel] Re: [CFR 0/10] QMP specification review Luiz Capitulino

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