From: Paolo Bonzini <pbonzini@redhat.com>
To: Xiongzi Ge <gexxx132@umn.edu>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Live Migration with different block devices
Date: Tue, 24 Jun 2014 21:37:44 +0200 [thread overview]
Message-ID: <53A9D388.8080307@redhat.com> (raw)
In-Reply-To: <CACtCCo_iehf=G4DZ8DjTHnP8atsUfHKLsLVkn_d1oRfFBtTfWw@mail.gmail.com>
Il 24/06/2014 21:18, Xiongzi Ge ha scritto:
>
> When I do live migration, in the source and destination host, there are
> different block devices, but qemu can not detect this. I used virtio as
> the driver in kvm and in the vdi device in the guest is /dev/vda. So,
> the vm guest can read different data from the same /dev/vda device.
It's probably the guest kernel (not QEMU) that is caching data from the
source's /dev/vda. What you are doing is not a valid usage of
migration. What are you trying to do?
Paolo
next prev parent reply other threads:[~2014-06-24 19:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-24 19:18 [Qemu-devel] Live Migration with different block devices Xiongzi Ge
2014-06-24 19:37 ` Paolo Bonzini [this message]
2014-06-24 19:55 ` Xiongzi Ge
2014-06-24 20:25 ` Paolo Bonzini
2014-06-24 20:34 ` Xiongzi Ge
2014-06-24 20:41 ` Eric Blake
2014-06-24 20:47 ` Paolo Bonzini
2014-06-24 21:26 ` Xiongzi Ge
2014-06-24 21:39 ` Christopher Covington
-- strict thread matches above, loose matches on Subject: below --
2014-06-24 19:22 Xiongzi Ge
2014-06-24 21:29 ` Brian Jackson
2014-06-24 23:16 ` Eric Blake
2014-06-25 0:08 ` Xiongzi Ge
2014-06-25 2:10 ` Eric Blake
2014-06-25 6:18 ` Paolo Bonzini
2014-06-25 14:14 ` Xiongzi Ge
2014-06-25 14:18 ` Paolo Bonzini
2014-06-25 14:32 ` Xiongzi Ge
2014-06-25 14:39 ` Paolo Bonzini
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