Re: [Qemu-devel] [PATCH v4 2/8] replay: save/load initial state

[Paolo Bonzini]

On 21/09/2016 17:49, Pavel Dovgalyuk wrote:
>> From: Paolo Bonzini [mailto:address@hidden
>> On 21/09/2016 13:33, Pavel Dovgalyuk wrote:
>>> +New VM snapshots may be created in replay mode. They can be used later
>>> +to recover the desired VM state. All VM states created in replay mode
>>> +are associated with the moment of time in the replay scenario.
>>> +After recovering the VM state replay will start from that position.
>>> +
>>> +Default starting snapshot name may be specified with icount field
>>> +rrsnapshot as follows:
>>> + -icount shift=7,rr=record,rrfile=replay.bin,rrsnapshot=snapshot_name
>>> +
>>> +This snapshot is created at start of recording and restored at start
>>> +of replaying. It also can be loaded while replaying to roll back
>>> +the execution.
>>
>> Should you mention somewhere that you need -snapshot for raw images?
> 
> Do you mean when rrsnapshot is used with raw images?

I mean that (if I understand correctly) raw images are corrupted if you
don't use -snapshot (the record overwrites them, and the replay reads
overwritten data).

Paolo

> I'll update the docs.
> 
> Pavel Dovgalyuk
>