[panda-users] Replaying "real'' session

[Igor R]

Oh, I see... Thanks a lot for the tips!

2015-03-12 19:03 GMT+02:00 Brendan Dolan-Gavitt <brendandg at gatech.edu>:
> Hi Igor,
>
> I believe replaymovie currently only works on replays generated when
> the system is in graphical mode, rather than at the VGA console. It's
> a bit of a hack, that relies on the fact that the replay is still
> updating the framebuffer somewhat, but it doesn't take into account
> mode changes or, apparently, the text console.
>
> Also, unless you intend to record the entirety of the boot process,
> it's generally better to wait until the system has booted and then
> start recording from the monitor, to capture just the behavior you're
> interested in. You can also use QEMU's snapshot facilities
> (savevm/loadvm) to save and restore the state of the system once it's
> fully booted, to save time. PANDA also supports starting a recording
> from a snapshot using the -record-from option.
>
> -Brendan
>
> On Wed, Mar 11, 2015 at 2:41 PM, Igor R <boost.lists at gmail.com> wrote:
>>> Now I'm trying to use this plugin, but for some reason no images get
>>> produced (I can't see any on the harddisk).
>>> I use panda vm from Oct.2014.
>>> I start recording like this:
>>>
>>> echo "begin_record rec1" | x86_64-softmmu/qemu-system-x86_64 -m 256 -hda
>>> ../../qcow/debian_squeeze_i386_standard.qcow2 -monitor stdio
>>
>>
>> OTOH, if I start recording from the monitor command line, the replay
>> does produce ~100 images. However, all these images are identical -
>> they represent the very first screen.
>> I'd appreciate any pointer!
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