[CRIU] CRIU user question

[Cyrill Gorcunov]

On Wed, Apr 23, 2014 at 10:16:59AM +0400, Pavel Emelyanov wrote:
> On 04/22/2014 08:36 PM, J F wrote:
> > 
> > Is this the best email list for end user technical questions about CRIU? If not, where is the best place to post a question?
> > 
> > My question:
> > 
> > I can successfully dump/restore my c code native app. 
> > However, if I embed a JVM within this c code native app I get the following error:
> > 
> > Error (parasite-syscall.c:765): Can't retrieve FDs from socket
> > Error (cr-dump.c:1506): Dump files (pid: 14773) failed with -23
> 
> -23 is file table overflow, CRIU is trying to use too many files.
> 
> > Error (cr-dump.c:1863): Dumping FAILED.
> > 
> > I'm looking for advice on the best way to proceed? 
> 
> You can increase the verbosity and strace the criu command so that
> we could get an idea where exactly this happens.

Better to not use strace with "dump" command, criu uses same engine as strace
does so it won't be working. But passing -v4 argument and sending us log
produced would be quite helpful.