[CRIU] CRIU user question

[Pavel Emelyanov]

On 04/23/2014 10:27 AM, Cyrill Gorcunov wrote:
> 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.

The strace of criu dump works like a charm ;) The strace of criu restore does not :(