Directory /proc/xenomai/registry/rtipc/xddp does not exist

Directory /proc/xenomai/registry/rtipc/xddp does not exist

[Jona Ostermann]

Hello,

one of our customers hast he problem that he needs a registry link in the directory /proc/xenomai/registry/rtipc/xddp.
But the directory does not exist, only /proc/xenomai/registry/ exists.

What could be the problem?
Is a special kernel configuration required or does a special kernel module need to be loaded?


Best regards
Jona Ostermann

Re: Directory /proc/xenomai/registry/rtipc/xddp does not exist

[Jan Kiszka]

On 26.03.20 11:12, Jona Ostermann via Xenomai wrote:
> Hello,
>
> one of our customers hast he problem that he needs a registry link in the directory /proc/xenomai/registry/rtipc/xddp.
> But the directory does not exist, only /proc/xenomai/registry/ exists.
>
> What could be the problem?
> Is a special kernel configuration required or does a special kernel module need to be loaded?
>

The links show up once xddp is being used. You can check that via
smokey's xddp test.

If that is not the case, compare configuration and versions of the
reference xenomai-images against your setup and share your findings.

Jan

AW: Directory /proc/xenomai/registry/rtipc/xddp does not exist

[Jona Ostermann]

Hello Jan,

thank you, you are correct.
Using the xddp-label demo tool the link is created.
So it is an application error and not a Xenomai configuration error.

Best regards
Jona

-----Ursprüngliche Nachricht-----
Von: Jan Kiszka <jan.kiszka@web.de> 
Gesendet: Freitag, 27. März 2020 10:07
An: Jona Ostermann <Jona.Ostermann@janztec.com>; xenomai@xenomai.org
Betreff: Re: Directory /proc/xenomai/registry/rtipc/xddp does not exist

On 26.03.20 11:12, Jona Ostermann via Xenomai wrote:
> Hello,
>
> one of our customers hast he problem that he needs a registry link in the directory /proc/xenomai/registry/rtipc/xddp.
> But the directory does not exist, only /proc/xenomai/registry/ exists.
>
> What could be the problem?
> Is a special kernel configuration required or does a special kernel module need to be loaded?
>

The links show up once xddp is being used. You can check that via smokey's xddp test.

If that is not the case, compare configuration and versions of the reference xenomai-images against your setup and share your findings.

Jan

AW: Directory /proc/xenomai/registry/rtipc/xddp does not exist

[Jona Ostermann]

Hello Jan,

our customer still has some problems creating this link.
They were using Xenomai 2 before and now have switched to Xenomai 3.1.

They were using the function rt_pipe_create in Xenomai 2, is there anything different in Xenomai 3?

We have set the following kernel configuration für XDDP:

CONFIG_XENO_DRIVERS_RTIPC=m
CONFIG_XENO_DRIVERS_RTIPC_XDDP=y
CONFIG_XENO_DRIVERS_RTIPC_IDDP=y
CONFIG_XENO_OPT_IDDP_NRPORT=32
CONFIG_XENO_DRIVERS_RTIPC_BUFP=y
CONFIG_XENO_OPT_BUFP_NRPORT=32

Is there anything else needed?

Best Regards
Jona

-----Ursprüngliche Nachricht-----
Von: Jona Ostermann 
Gesendet: Dienstag, 31. März 2020 16:03
An: 'Jan Kiszka' <jan.kiszka@web.de>; xenomai@xenomai.org
Betreff: AW: Directory /proc/xenomai/registry/rtipc/xddp does not exist

Hello Jan,

thank you, you are correct.
Using the xddp-label demo tool the link is created.
So it is an application error and not a Xenomai configuration error.

Best regards
Jona

-----Ursprüngliche Nachricht-----
Von: Jan Kiszka <jan.kiszka@web.de> 
Gesendet: Freitag, 27. März 2020 10:07
An: Jona Ostermann <Jona.Ostermann@janztec.com>; xenomai@xenomai.org
Betreff: Re: Directory /proc/xenomai/registry/rtipc/xddp does not exist

On 26.03.20 11:12, Jona Ostermann via Xenomai wrote:
> Hello,
>
> one of our customers hast he problem that he needs a registry link in the directory /proc/xenomai/registry/rtipc/xddp.
> But the directory does not exist, only /proc/xenomai/registry/ exists.
>
> What could be the problem?
> Is a special kernel configuration required or does a special kernel module need to be loaded?
>

The links show up once xddp is being used. You can check that via smokey's xddp test.

If that is not the case, compare configuration and versions of the reference xenomai-images against your setup and share your findings.

Jan

Re: Directory /proc/xenomai/registry/rtipc/xddp does not exist

[Jan Kiszka]

On 01.04.20 11:38, Jona Ostermann wrote:
> Hello Jan,
>
> our customer still has some problems creating this link.
> They were using Xenomai 2 before and now have switched to Xenomai 3.1.
>
> They were using the function rt_pipe_create in Xenomai 2, is there anything different in Xenomai 3?
>
> We have set the following kernel configuration für XDDP:
>
> CONFIG_XENO_DRIVERS_RTIPC=m
> CONFIG_XENO_DRIVERS_RTIPC_XDDP=y
> CONFIG_XENO_DRIVERS_RTIPC_IDDP=y
> CONFIG_XENO_OPT_IDDP_NRPORT=32
> CONFIG_XENO_DRIVERS_RTIPC_BUFP=y
> CONFIG_XENO_OPT_BUFP_NRPORT=32
>
> Is there anything else needed?

Rather than guessing what might have changed and what might affect you:
Can you provide a test case for what is not working as expected?

Jan

>
> Best Regards
> Jona
>
> -----Ursprüngliche Nachricht-----
> Von: Jona Ostermann
> Gesendet: Dienstag, 31. März 2020 16:03
> An: 'Jan Kiszka' <jan.kiszka@web.de>; xenomai@xenomai.org
> Betreff: AW: Directory /proc/xenomai/registry/rtipc/xddp does not exist
>
> Hello Jan,
>
> thank you, you are correct.
> Using the xddp-label demo tool the link is created.
> So it is an application error and not a Xenomai configuration error.
>
> Best regards
> Jona
>
> -----Ursprüngliche Nachricht-----
> Von: Jan Kiszka <jan.kiszka@web.de>
> Gesendet: Freitag, 27. März 2020 10:07
> An: Jona Ostermann <Jona.Ostermann@janztec.com>; xenomai@xenomai.org
> Betreff: Re: Directory /proc/xenomai/registry/rtipc/xddp does not exist
>
> On 26.03.20 11:12, Jona Ostermann via Xenomai wrote:
>> Hello,
>>
>> one of our customers hast he problem that he needs a registry link in the directory /proc/xenomai/registry/rtipc/xddp.
>> But the directory does not exist, only /proc/xenomai/registry/ exists.
>>
>> What could be the problem?
>> Is a special kernel configuration required or does a special kernel module need to be loaded?
>>
>
> The links show up once xddp is being used. You can check that via smokey's xddp test.
>
> If that is not the case, compare configuration and versions of the reference xenomai-images against your setup and share your findings.
>
> Jan
>

AW: Directory /proc/xenomai/registry/rtipc/xddp does not exist

[Jona Ostermann]

Hello Jan,

thanks for the interest in our problem.

Our customer has provided a short and simple test case: https://pastebin.com/LSGVhLFh

Best Regards
Jona

-----Ursprüngliche Nachricht-----
Von: Jan Kiszka <jan.kiszka@web.de> 
Gesendet: Mittwoch, 1. April 2020 13:49
An: Jona Ostermann <Jona.Ostermann@janztec.com>; xenomai@xenomai.org
Betreff: Re: Directory /proc/xenomai/registry/rtipc/xddp does not exist

On 01.04.20 11:38, Jona Ostermann wrote:
> Hello Jan,
>
> our customer still has some problems creating this link.
> They were using Xenomai 2 before and now have switched to Xenomai 3.1.
>
> They were using the function rt_pipe_create in Xenomai 2, is there anything different in Xenomai 3?
>
> We have set the following kernel configuration für XDDP:
>
> CONFIG_XENO_DRIVERS_RTIPC=m
> CONFIG_XENO_DRIVERS_RTIPC_XDDP=y
> CONFIG_XENO_DRIVERS_RTIPC_IDDP=y
> CONFIG_XENO_OPT_IDDP_NRPORT=32
> CONFIG_XENO_DRIVERS_RTIPC_BUFP=y
> CONFIG_XENO_OPT_BUFP_NRPORT=32
>
> Is there anything else needed?

Rather than guessing what might have changed and what might affect you:
Can you provide a test case for what is not working as expected?

Jan

>
> Best Regards
> Jona
>
> -----Ursprüngliche Nachricht-----
> Von: Jona Ostermann
> Gesendet: Dienstag, 31. März 2020 16:03
> An: 'Jan Kiszka' <jan.kiszka@web.de>; xenomai@xenomai.org
> Betreff: AW: Directory /proc/xenomai/registry/rtipc/xddp does not exist
>
> Hello Jan,
>
> thank you, you are correct.
> Using the xddp-label demo tool the link is created.
> So it is an application error and not a Xenomai configuration error.
>
> Best regards
> Jona
>
> -----Ursprüngliche Nachricht-----
> Von: Jan Kiszka <jan.kiszka@web.de>
> Gesendet: Freitag, 27. März 2020 10:07
> An: Jona Ostermann <Jona.Ostermann@janztec.com>; xenomai@xenomai.org
> Betreff: Re: Directory /proc/xenomai/registry/rtipc/xddp does not exist
>
> On 26.03.20 11:12, Jona Ostermann via Xenomai wrote:
>> Hello,
>>
>> one of our customers hast he problem that he needs a registry link in the directory /proc/xenomai/registry/rtipc/xddp.
>> But the directory does not exist, only /proc/xenomai/registry/ exists.
>>
>> What could be the problem?
>> Is a special kernel configuration required or does a special kernel module need to be loaded?
>>
>
> The links show up once xddp is being used. You can check that via smokey's xddp test.
>
> If that is not the case, compare configuration and versions of the reference xenomai-images against your setup and share your findings.
>
> Jan
>

Re: Directory /proc/xenomai/registry/rtipc/xddp does not exist

[Jan Kiszka]

On 01.04.20 14:42, Jona Ostermann wrote:
> Hello Jan,
>
> thanks for the interest in our problem.
>
> Our customer has provided a short and simple test case: https://pastebin.com/LSGVhLFh

OK, with the syntax error fixed and compiled like this

g++ -o rtpipe-test rtpipe-test.cpp $(xeno-config --skin=native --cflags --ldflags)

it runs fine. Furthermore, the registry entry is visible as long as you
keep the application running (the version you provided deletes it
immediately because it shuts down immediately).

Jan

>
> Best Regards
> Jona
>
> -----Ursprüngliche Nachricht-----
> Von: Jan Kiszka <jan.kiszka@web.de>
> Gesendet: Mittwoch, 1. April 2020 13:49
> An: Jona Ostermann <Jona.Ostermann@janztec.com>; xenomai@xenomai.org
> Betreff: Re: Directory /proc/xenomai/registry/rtipc/xddp does not exist
>
> On 01.04.20 11:38, Jona Ostermann wrote:
>> Hello Jan,
>>
>> our customer still has some problems creating this link.
>> They were using Xenomai 2 before and now have switched to Xenomai 3.1.
>>
>> They were using the function rt_pipe_create in Xenomai 2, is there anything different in Xenomai 3?
>>
>> We have set the following kernel configuration für XDDP:
>>
>> CONFIG_XENO_DRIVERS_RTIPC=m
>> CONFIG_XENO_DRIVERS_RTIPC_XDDP=y
>> CONFIG_XENO_DRIVERS_RTIPC_IDDP=y
>> CONFIG_XENO_OPT_IDDP_NRPORT=32
>> CONFIG_XENO_DRIVERS_RTIPC_BUFP=y
>> CONFIG_XENO_OPT_BUFP_NRPORT=32
>>
>> Is there anything else needed?
>
> Rather than guessing what might have changed and what might affect you:
> Can you provide a test case for what is not working as expected?
>
> Jan
>
>>
>> Best Regards
>> Jona
>>
>> -----Ursprüngliche Nachricht-----
>> Von: Jona Ostermann
>> Gesendet: Dienstag, 31. März 2020 16:03
>> An: 'Jan Kiszka' <jan.kiszka@web.de>; xenomai@xenomai.org
>> Betreff: AW: Directory /proc/xenomai/registry/rtipc/xddp does not exist
>>
>> Hello Jan,
>>
>> thank you, you are correct.
>> Using the xddp-label demo tool the link is created.
>> So it is an application error and not a Xenomai configuration error.
>>
>> Best regards
>> Jona
>>
>> -----Ursprüngliche Nachricht-----
>> Von: Jan Kiszka <jan.kiszka@web.de>
>> Gesendet: Freitag, 27. März 2020 10:07
>> An: Jona Ostermann <Jona.Ostermann@janztec.com>; xenomai@xenomai.org
>> Betreff: Re: Directory /proc/xenomai/registry/rtipc/xddp does not exist
>>
>> On 26.03.20 11:12, Jona Ostermann via Xenomai wrote:
>>> Hello,
>>>
>>> one of our customers hast he problem that he needs a registry link in the directory /proc/xenomai/registry/rtipc/xddp.
>>> But the directory does not exist, only /proc/xenomai/registry/ exists.
>>>
>>> What could be the problem?
>>> Is a special kernel configuration required or does a special kernel module need to be loaded?
>>>
>>
>> The links show up once xddp is being used. You can check that via smokey's xddp test.
>>
>> If that is not the case, compare configuration and versions of the reference xenomai-images against your setup and share your findings.
>>
>> Jan
>>