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

Dietmar Maurer dietmar at proxmox.com
Sun Nov 8 14:57:46 CET 2015



> On November 8, 2015 at 2:18 PM Dietmar Maurer <dietmar at proxmox.com> wrote:
> 
> 
> 
> 
> > On November 8, 2015 at 1:03 PM Alexandre DERUMIER <aderumier at odiso.com>
> > wrote:
> > 
> > 
> > >> it's since qemu 2.3, we need to specify format=raw, we are already doing
> > >> it
> > >> 
> > >> for -drive , I'm not sure with vmstate open. 
> > >> 
> > 
> > >>>Oh, I though the PVE::Storage already fixed that ... 
> > >Currently we use PVE::QemuServer::qemu_img_format, to generate the
> > >format=raw
> > >string in 
> > >differente place (-drive , mirror,...)
> > 
> > I think we should pass format in a new qmp option,
> > and do like qemu-img
> > 
> > 
> >    QDict *options = NULL;
> >  
> >    if (fmt) {
> >         options = qdict_new();
> >         qdict_put(options, "driver", qstring_from_str(fmt));
> >    }
> > 
> >    ret = bdrv_open(&snap_state.bs, statefile, NULL, options, bdrv_oflags,
> > drv,
> > &local_err);
> 
> I thought we always use 'raw' format for statefile?
> 

just verified that - we always use 'raw' format in &$alloc_vmstate_volid()
 



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