[fedora-virt] info on save function in virt-manager

Gianluca Cecchi gianluca.cecchi at gmail.com
Mon Sep 21 15:56:22 UTC 2009

On Mon, Sep 21, 2009 at 8:28 AM, Chris Lalancette <clalance at redhat.com>wrote:

> Gianluca Cecchi wrote:
> > Is the save function in virt-manager for a vm equivalent to these steps:
> >
> > 1) pause vm (for example in virt-manager gui)
> > 2) save disk image to file
> > 3) run vm again
> > ?
> > Is any mem state preserved in this save operation?
> It's equivalent to steps 1) and 2), followed by a kill of the paused VM.
>  And
> yes, the memory state is preserved.  On a restore, the memory state is
> restored,
> and the VM is set running again.
And is it supposed to work at this time on F11 + fedora-virt-preview repo?
Because I get the window saying "operation in progress" but it seems

In fact also a "virsh list" command at this point remains pending.....

The process seems to have only being written about 1400 bytes of the saved
-rw------- 1 root root     1400 2009-09-21 17:46 save_vm_prova2

An fuser command on that file gives nothing.
An strace on virt-manager process gives:
[root at virtfedbis tmp]# strace -p 648
Process 648 attached - interrupt to quit
futex(0x2ff705c, FUTEX_WAIT_PRIVATE, 1, NULL

The Vm is no more reachable and was doing almost nothing when the "save"
operation was started.
It seems nothing relevant in messages or virt-manager.log or vm log

If it is supposed to work I'm going to open a bug...

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