[CRIU] Error CRIU restore because pid not matched

[Cyrill Gorcunov]

On Fri, Oct 24, 2014 at 08:03:39PM +0400, Pavel Emelyanov wrote:
> On 10/24/2014 07:58 PM, Aris Setyawan wrote:
> > Hi,
> > 
> > I have try to use CRIU in my current project.
> > I have problem when restoring a process.
> > This is the error message:
> > 
> > (00.009867) Error (cr-restore.c:1390): Pid 1814 do not match expected 1813
> 
> This means, that pid 1813, with which the restored task wants to live,
> is already busy.
> 
> > (00.010384) Error (cr-restore.c:1161): 1814 exited, status=1
> > (00.010405) Error (cr-restore.c:1780): Restoring FAILED.
> > 
> > Can I just use NEW PID?
> > 
> > I have try to use "--namespace pid" option, but it have no effect.
> > http://criu.org/Advanced_usage#Knowing_a_new_pid_of_restored_task
> 
> This option was obsoleted some time ago, sorry. Now CRIU detects
> and creates the namespaces itself.

Also we know that paket-gen kernel module should be unloaded if one
wanna run criu.