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From: walt <w41ter@gmail.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: snapshot vs COW?
Date: Sun, 14 Dec 2008 14:07:31 -0800	[thread overview]
Message-ID: <gi4034$kl2$1@ger.gmane.org> (raw)
In-Reply-To: <20081214183509.GB2995@networkno.de>

Thiemo Seufer wrote:
> Jamie Lokier wrote:
>> walt wrote:
>>> COW is a nice feature but it is currently broken, so don't use it
>>> until it gets fixed.  When you commit any changes your backing file
>>> will be corrupted.

>> Aieee!  I use COW instead of snapshots in my management scripts,
>> because snapshots are harder to manage.
>>
>> Is the COW brokenness documented?  What version did it start being broken?

> Cow2 is broken in the 0.9.1 release, it was fixed shortly afterwards.
> The symptom was corruption of the image when it grew beyond 4 GB...

Glad to hear it, thanks for the update.  That means that the fix is
already in the kvm git repository?

      reply	other threads:[~2008-12-14 22:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-12  3:17 [Qemu-devel] snapshot vs COW? Jun Koi
2008-12-12  3:18 ` [Qemu-devel] " Jun Koi
2008-12-12 13:25 ` walt
2008-12-14 18:12   ` Jamie Lokier
2008-12-14 18:35     ` Thiemo Seufer
2008-12-14 22:07       ` walt [this message]

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