[libvirt-users] qemu-monitor-command

[Michal Privoznik]

On 20.03.2012 14:30, Shawn Davis wrote:
> Hello Everyone,
> 
>  
> 
> I am working on a grad school project for virtual introspection.  I have
> a vm running(with 512mb of memory) and want to access the pmemsave
> function through virsh with the qemu-monitor-command.  I am typing the
> following:
> 
>  
> 
> virsh qemu-monitor-command --hmp Shawn ‘pmemsave 0 536870912 image.dump’
> 
>  
> 
> Shawn is the name of my vm and image.dump is the name of my output
> file.  No matter what I do, I keep getting: Could not open ‘image.dump’ 
> 
>  
> 
> I have tried the above with sudo and with the absolute path of where the
> newly created dump file should go and I still get that error.  Any help
> is appreciated as to how I should enter this command.
> 
>  
> 
> If I type in virsh qemu-monitor-command --hmp Shawn ‘info mem’ or any
> other command without an output path, it works fineand brings up
> information about my running vm.
> 
>  
> 
> Regards,
> 
> Shawn

I guess qemu can't access the path you are trying, esp. when you run it
without root privileges. However, you can use virDomainMemoryPeek() instead.

Michal