* [Qemu-devel] Unable to migrate pc-i440fx-2.4 KVM guest from QEMU 2.5.0 to QEMU 2.4.1
@ 2016-02-18 17:54 Alexandre DERUMIER
2016-02-18 18:13 ` Laszlo Ersek
2016-02-18 18:24 ` Paolo Bonzini
0 siblings, 2 replies; 4+ messages in thread
From: Alexandre DERUMIER @ 2016-02-18 17:54 UTC (permalink / raw)
To: qemu-devel
Hi,
I (and promox users) have same problem than this bugreport
https://bugs.launchpad.net/qemu/+bug/1536487
https://forum.proxmox.com/threads/cant-live-migrate-after-dist-upgrade.26097/
Migrating from qemu 2.5 with pc-i440fx-2.4 to qemu 2.4.1 don't work.
qemu-system-x86_64: error while loading state for instance 0x0 of device 'fw_cfg'
Details are in the bugreport.
Regards,
Alexandre
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Qemu-devel] Unable to migrate pc-i440fx-2.4 KVM guest from QEMU 2.5.0 to QEMU 2.4.1
2016-02-18 17:54 [Qemu-devel] Unable to migrate pc-i440fx-2.4 KVM guest from QEMU 2.5.0 to QEMU 2.4.1 Alexandre DERUMIER
@ 2016-02-18 18:13 ` Laszlo Ersek
2016-02-18 18:24 ` Paolo Bonzini
1 sibling, 0 replies; 4+ messages in thread
From: Laszlo Ersek @ 2016-02-18 18:13 UTC (permalink / raw)
To: Alexandre DERUMIER, qemu-devel, Gerd Hoffmann, Marc Marí
On 02/18/16 18:54, Alexandre DERUMIER wrote:
> Hi,
>
> I (and promox users) have same problem than this bugreport
>
> https://bugs.launchpad.net/qemu/+bug/1536487
> https://forum.proxmox.com/threads/cant-live-migrate-after-dist-upgrade.26097/
>
> Migrating from qemu 2.5 with pc-i440fx-2.4 to qemu 2.4.1 don't work.
> qemu-system-x86_64: error while loading state for instance 0x0 of device 'fw_cfg'
>
> Details are in the bugreport.
>
> Regards,
>
> Alexandre
>
>
>
http://thread.gmane.org/gmane.comp.emulators.qemu/390272/focus=391042
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Qemu-devel] Unable to migrate pc-i440fx-2.4 KVM guest from QEMU 2.5.0 to QEMU 2.4.1
2016-02-18 17:54 [Qemu-devel] Unable to migrate pc-i440fx-2.4 KVM guest from QEMU 2.5.0 to QEMU 2.4.1 Alexandre DERUMIER
2016-02-18 18:13 ` Laszlo Ersek
@ 2016-02-18 18:24 ` Paolo Bonzini
2016-02-18 19:32 ` Laszlo Ersek
1 sibling, 1 reply; 4+ messages in thread
From: Paolo Bonzini @ 2016-02-18 18:24 UTC (permalink / raw)
To: Alexandre DERUMIER, qemu-devel
On 18/02/2016 18:54, Alexandre DERUMIER wrote:
> Hi,
>
> I (and promox users) have same problem than this bugreport
>
> https://bugs.launchpad.net/qemu/+bug/1536487
> https://forum.proxmox.com/threads/cant-live-migrate-after-dist-upgrade.26097/
>
> Migrating from qemu 2.5 with pc-i440fx-2.4 to qemu 2.4.1 don't work.
> qemu-system-x86_64: error while loading state for instance 0x0 of device 'fw_cfg'
While I agree that this is a bug worth fixing, note that in general
migration from new to old versions is _not_ supported. Usually it
works, but not always, and sometimes it's not a bug.
Machine types are only meant to support migration from old versions to new.
Paolo
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2016-02-18 19:32 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2016-02-18 17:54 [Qemu-devel] Unable to migrate pc-i440fx-2.4 KVM guest from QEMU 2.5.0 to QEMU 2.4.1 Alexandre DERUMIER
2016-02-18 18:13 ` Laszlo Ersek
2016-02-18 18:24 ` Paolo Bonzini
2016-02-18 19:32 ` Laszlo Ersek
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