From: Filip Navara <filip.navara@gmail.com>
To: Paul Brook <paul@codesourcery.com>
Cc: qemu-devel@nongnu.org, Gleb Natapov <gleb@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v2] make windows notice media change
Date: Wed, 29 Jul 2009 21:18:07 +0200 [thread overview]
Message-ID: <5b31733c0907291218k624f97bbx62d8d6d49b8f0759@mail.gmail.com> (raw)
In-Reply-To: <200907292011.38879.paul@codesourcery.com>
On Wed, Jul 29, 2009 at 9:11 PM, Paul Brook<paul@codesourcery.com> wrote:
>> Why shouldn't we support loading version 2 snapshots? Afterall that's
>> why we had the versioning in the first place.
>
> No it's not. Versioning was introduced to *prevent* loading old snapshots and
> crashing or ending up with inconsistent guest state. I'm still unconvinced
> that anything other than very short term backward compatibility is worthwhile
> or even viable.
I see it as a way to migrate a running guest to newer QEMU version, possibly
even with live migration. In fact I used it quite often back in the day when
snapshots were not part of qcow2 yet and when kqemu was still in its heydays.
Best regards,
Filip Navara
next prev parent reply other threads:[~2009-07-29 19:18 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-29 12:07 [Qemu-devel] [PATCH] make windows notice media change Gleb Natapov
2009-07-29 13:50 ` [Qemu-devel] [PATCH v2] " Gleb Natapov
2009-07-29 14:22 ` Avi Kivity
2009-07-29 14:21 ` Gleb Natapov
2009-07-29 14:44 ` Avi Kivity
2009-07-29 14:35 ` Filip Navara
2009-07-29 14:40 ` Gleb Natapov
2009-07-29 14:59 ` Stefano Stabellini
2009-07-29 19:11 ` Paul Brook
2009-07-29 19:18 ` Filip Navara [this message]
2009-07-29 19:24 ` Filip Navara
2009-07-29 19:34 ` Anthony Liguori
2009-07-29 19:52 ` Paul Brook
2009-07-29 19:56 ` Filip Navara
2009-07-29 20:05 ` Paul Brook
2009-07-29 20:14 ` Gleb Natapov
2009-07-30 12:14 ` Stefano Stabellini
2009-07-30 12:27 ` Paul Brook
2009-07-29 19:33 ` Anthony Liguori
2009-07-29 19:44 ` [Qemu-devel] " Juan Quintela
2009-07-29 20:05 ` Anthony Liguori
2009-07-29 20:09 ` Juan Quintela
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