[CRIU] Unable to send/recv msg to/from CRIU: Connection reset by peer

[Paschalis Mpeis]

I have done the native compilation for `criu` and `protobuf-c`.

*Then I created a new directory and I put in the following:*

> ./criu (the compiled binary)
> ./libs/
> ./libs/criu
> ./libs/criu/include
> ./libs/criu/lib
> ./libs/protobuf
> ./libs/protobuf/include
> ./libs/protobuf/lib


*I setup the CRIU env var in env.sh like this:*

> CRIU="sudo LD_LIBRARY_PATH=`pwd`/libs/criu/lib/:`pwd`/libs/protobuf-c/lib/
> ./criu"


*Relevant lines from the Makefile:*

> CRIU_DIR_LIB=./libs/criu/lib
> PROTOBUF_DIR_LIB=./libs/protobuf-c/lib

...

> define genb
> $(1): $(1).o lib.o
>     gcc $$^ -L $(CRIU_DIR_LIB) -lcriu -L $(PROTOBUF_DIR_LIB) -lprotobuf-c
> -o $$@
> endef

...

> %.o: %.c
>     gcc -c $^ -I$(CRIU_DIR_LIB) -I$(PROTOBUF_DIR_LIB) -o $@ -Werror


This, does create a healthy executable for the tests.
Also, if I `source` the `env.sh`, then executing `./criu`seems to working
fine. It displays the man page, and I can use features like show -f a.img.

*Relevant lines from the run.sh: (of the test/libcriu)*
...

> ln -s ./libs/criu/lib/libcriu.so libcriu.so.1
> cp ./libs/protobuf-c/lib/libprotobuf-c.so.1 libprotobuf-c.so.1

...

I am missing something. But I don't know where!!

The reason of following such approach is that I will cross-compile for ARM
at some point.
So, I will just replace the criu binary and the libs folders with the
cross-compiled ones. After this, it should work!


Cheers,
Paschalis


On Wed, Dec 10, 2014 at 5:11 PM, Ruslan Kuprieiev <kupruser at gmail.com>
wrote:

> On 12/10/2014 06:26 PM, Paschalis Mpeis wrote:
>
>>
>> I already sent this info, just right after my initial email.
>> It is not shown in mailing list, so I re-attach:
>>
>> *cat wdir/s/cs.sk <http://cs.sk>:*
>>
>>     cat: wdir/s/cs.sk <http://cs.sk>: No such device or address
>>
>>
>> *cat wdir/s/service.log:*
>>
>>     (00.000037) The service socket is bound to cs.sk <http://cs.sk>
>>     (00.000187) Waiting for connection...
>>     (00.058685) Connected.
>>     (00.058745) Waiting for connection...
>>     (00.058934) Restrict C/R with 0:0 uid:gid
>>     (00.061206) Restrict C/R with 0:0 uid:gid
>>     (00.064244) Worker(pid 6370) exited with 0
>>
>
> Hm ,looks like libcriu didn't even try to connect to criu on restore.
>
> Did you "make install"? Could you show us what "which criu" shows?
>
> Thanks.
>
>
>>
>>
>> ​Cheers,
>> Paschalis​
>>
>>
>> On Wed Dec 10 2014 at 4:22:08 PM Ruslan Kuprieiev <kupruser at gmail.com
>> <mailto:kupruser at gmail.com>> wrote:
>>
>>     Hi, Paschalis!
>>
>>     Could you also show us test/libcriu/s/service.log please?
>>
>>     Thanks.
>>
>>     On 12/10/2014 06:13 PM, Paschalis Mpeis wrote:
>>      > There is no restore.log in wdir/i/<app-name/1 directory.
>>      > And it is specified on the code using:
>>      > `criu_set_log_file("restore.__log");`
>>      >
>>      > Also, is there an explanation of the directories created by criu?
>>      > I can tell some things by the files, but I would feel more
>> confident
>>      > reading these from a documentation.
>>      >
>>      > Cheers,
>>      > Paschalis
>>      >
>>      >
>>      >
>>      > On Wed Dec 10 2014 at 3:55:49 PM Pavel Emelyanov
>>     <xemul at parallels.com <mailto:xemul at parallels.com>
>>      > <mailto:xemul at parallels.com <mailto:xemul at parallels.com>>> wrote:
>>      >
>>      >     On 12/10/2014 04:02 PM, Paschalis Mpeis wrote:
>>      >      > Hi all,
>>      >      >
>>      >      > I 've been struggling with this problem for some time.
>>      >      >
>>      >      >
>>      >      > *This is what I get when I execute the test_iters.c test
>>     (located
>>      >     in tests/libcriu) with sudo:*
>>      >      >
>>      >      >     --- Start loop ---
>>      >      >        `- loop: initializing
>>      >      >     --- Dump loop ---
>>      >      >        `- 1 iter over
>>      >      >        `- Dump succeeded
>>      >      >     --- Restore loop ---
>>      >      >     Can't read response: Connection reset by peer
>>      >      >     Can't receive response: Connection reset by peer
>>      >      >     Unable to send/recv msg to/from CRIU: Connection reset
>>     by peer
>>      >      >     test_iters: FAIL
>>      >      >     == Stopping service
>>      >      >     FAIL
>>      >      >
>>      >      >
>>      >      > *Here is the wdir/i/<app-name/dump.log:*
>>      >
>>      >     But what fails is the restore. Can you show the restore.log
>> file
>>      >     contents?
>>      >
>>      >     Thanks,
>>      >     Pavel
>>      >
>>      >
>>      >
>>      > The University of Edinburgh is a charitable body, registered in
>>      > Scotland, with registration number SC005336.
>>      >
>>      >
>>      >
>>      > _________________________________________________
>>      > CRIU mailing list
>>      > CRIU at openvz.org <mailto:CRIU at openvz.org>
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>>      >
>>
>>
>>
>> The University of Edinburgh is a charitable body, registered in
>> Scotland, with registration number SC005336.
>>
>>
>
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