[pve-devel] qemu 4.4 : rbd : snapshot memory, savevm is hanging

Alexandre DERUMIER aderumier at odiso.com
Tue Nov 10 17:15:47 CET 2015

about my snapshot bug with rbd,

I confirm it is a ceph bug, and this is fixed by:


(this is a regression in ceph hammer >= 0.9.3, with cache=none)

----- Mail original -----
De: "Wolfgang Bumiller" <w.bumiller at proxmox.com>
À: "aderumier" <aderumier at odiso.com>, "pve-devel" <pve-devel at pve.proxmox.com>, "dietmar" <dietmar at proxmox.com>
Envoyé: Mardi 10 Novembre 2015 07:57:14
Objet: Re: [pve-devel] qemu 4.4 : rbd : snapshot memory, savevm is hanging

> On November 9, 2015 at 6:14 AM Dietmar Maurer <dietmar at proxmox.com> wrote: 
> @wolfgang: do you still have those patches to use a dedicated thread for 
> savevm? 

Yes I have a thread and a coroutine version which could use some testing, but 
the symptoms here are different from what the patches should fix (which would be 
that it never reaches the end). 

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