[Xenomai-core] Is anybody using the pSOS skin in userland?

[Xenomai-core] Is anybody using the pSOS skin in userland?

[ronny meeus]

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Hello

we are investigating to usage of the pSOS+ skin to port a large legacy pSOS
application to Linux.
The application model consist of several processes in which the application
lives. All processes will make use of the pSOS library.

After playing around with the library for some time we have observed several
missing service calls, bugs and differences in behaviour compared to a real
pSOS implementation:
- missing sm_ident
- missing t_getreg / t_setreg in userland (patch already included in 2.5.5)
- not possible to use skin from the context of different processes (patch
already included in 2.5.5)
- added support for identical task/queue/semaphore/region names by making
names unique.
- strange behaviour in pSOS message queue (see post "Possible memory leak in
psos skin message queue handling").

I can (and will) deliver patches for all issues I have found, but I'm
wondering whether there are other people using the pSOS skin (in userland)
in a real live application. The target for my project would be an embedded
system with strong reliability requirements (very stable / long running
etc).
Any feedback is welcome and appreciated.

It is not clear to me either which tests are executed before a new version
is released. Is there any test-suite available for the pSOS skin?

Best regards,
Ronny

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Re: [Xenomai-core] Is anybody using the pSOS skin in userland?

[Philippe Gerum]

On Wed, 2010-11-03 at 22:42 +0100, ronny meeus wrote:
> Hello
>  
> we are investigating to usage of the pSOS+ skin to port a large legacy
> pSOS application to Linux.
> The application model consist of several processes in which the
> application lives. All processes will make use of the pSOS library.
>  
> After playing around with the library for some time we have observed
> several missing service calls, bugs and differences in behaviour
> compared to a real pSOS implementation:
> - missing sm_ident 
> - missing t_getreg / t_setreg in userland (patch already included in
> 2.5.5)
> - not possible to use skin from the context of different processes
> (patch already included in 2.5.5)
> - added support for identical task/queue/semaphore/region names by
> making names unique.
> - strange behaviour in pSOS message queue (see post "Possible memory
> leak in psos skin message queue handling").
>  
> I can (and will) deliver patches for all issues I have found, but I'm
> wondering whether there are other people using the pSOS skin (in
> userland) in a real live application. The target for my project would
> be an embedded system with strong reliability requirements (very
> stable / long running etc).
> Any feedback is welcome and appreciated.
>  
> It is not clear to me either which tests are executed before a new
> version is released.

T-e-s-t? What's this? We are proud to deliver the greatest uncertainty,
where the deepest fears about upgrading may turn into the highest hopes.
And vice-versa.

>  Is there any test-suite available for the pSOS skin?

This is a good start, used to validate the Xenomai SOLO implementation.
http://git.denx.de/?p=xenomai-solo.git;a=tree;f=psos/testsuite;h=54411570e19dec40e14a1226084024c05c0f3e53;hb=ee9c11895ac7cf2d72b1158a4836a4465f478a0b

This needs to be slightly adapted to run over the current Xenomai 2.x
architecture, but the test logic of course is the same.

>  
> Best regards,
> Ronny 
>  
>  
> _______________________________________________
> Xenomai-core mailing list
> Xenomai-core@domain.hid
> https://mail.gna.org/listinfo/xenomai-core

-- 
Philippe.

Re: [Xenomai-core] Is anybody using the pSOS skin in userland?

[Philippe Gerum]

On Wed, 2010-11-03 at 22:42 +0100, ronny meeus wrote:
> Hello
>  
> we are investigating to usage of the pSOS+ skin to port a large legacy
> pSOS application to Linux.
> The application model consist of several processes in which the
> application lives. All processes will make use of the pSOS library.
>  
> After playing around with the library for some time we have observed
> several missing service calls, bugs and differences in behaviour
> compared to a real pSOS implementation:
> - missing sm_ident 

http://git.xenomai.org/?p=xenomai-rpm.git;a=commit;h=26e916ecc3f8b71cd8ce4c4194555ee0cc4aa018


> - missing t_getreg / t_setreg in userland (patch already included in
> 2.5.5)
> - not possible to use skin from the context of different processes
> (patch already included in 2.5.5)
> - added support for identical task/queue/semaphore/region names by
> making names unique.
> - strange behaviour in pSOS message queue (see post "Possible memory
> leak in psos skin message queue handling").
>  
> I can (and will) deliver patches for all issues I have found, but I'm
> wondering whether there are other people using the pSOS skin (in
> userland) in a real live application. The target for my project would
> be an embedded system with strong reliability requirements (very
> stable / long running etc).
> Any feedback is welcome and appreciated.
>  
> It is not clear to me either which tests are executed before a new
> version is released. Is there any test-suite available for the pSOS
> skin?
>  
> Best regards,
> Ronny 
>  
>  
> _______________________________________________
> Xenomai-core mailing list
> Xenomai-core@domain.hid
> https://mail.gna.org/listinfo/xenomai-core

-- 
Philippe.

Re: [Xenomai-core] Is anybody using the pSOS skin in userland?

[ronny meeus]

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Philippe,

The sm_ident patch is fine.

Thanks
Ronny

On Mon, Nov 15, 2010 at 11:56 AM, Philippe Gerum <rpm@xenomai.org> wrote:

> On Wed, 2010-11-03 at 22:42 +0100, ronny meeus wrote:
> > Hello
> >
> > we are investigating to usage of the pSOS+ skin to port a large legacy
> > pSOS application to Linux.
> > The application model consist of several processes in which the
> > application lives. All processes will make use of the pSOS library.
> >
> > After playing around with the library for some time we have observed
> > several missing service calls, bugs and differences in behaviour
> > compared to a real pSOS implementation:
> > - missing sm_ident
>
>
> http://git.xenomai.org/?p=xenomai-rpm.git;a=commit;h=26e916ecc3f8b71cd8ce4c4194555ee0cc4aa018
>
>
> > - missing t_getreg / t_setreg in userland (patch already included in
> > 2.5.5)
> > - not possible to use skin from the context of different processes
> > (patch already included in 2.5.5)
> > - added support for identical task/queue/semaphore/region names by
> > making names unique.
> > - strange behaviour in pSOS message queue (see post "Possible memory
> > leak in psos skin message queue handling").
> >
> > I can (and will) deliver patches for all issues I have found, but I'm
> > wondering whether there are other people using the pSOS skin (in
> > userland) in a real live application. The target for my project would
> > be an embedded system with strong reliability requirements (very
> > stable / long running etc).
> > Any feedback is welcome and appreciated.
> >
> > It is not clear to me either which tests are executed before a new
> > version is released. Is there any test-suite available for the pSOS
> > skin?
> >
> > Best regards,
> > Ronny
> >
> >
> > _______________________________________________
> > Xenomai-core mailing list
> > Xenomai-core@domain.hid
> > https://mail.gna.org/listinfo/xenomai-core
>
> --
> Philippe.
>
>
>

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