[Xenomai-help] nofastsem

[Xenomai-help] nofastsem

[Rob Wheeler]

I've been running revision 4007 from the Xenomai svn trunk
successfully, and I recently tried building and running a more recent
revision (4060).  The kernel and user code all build fine, but when I
try to run a Xenomai application I get a message saying the userland
wants fastsem and the kernel has nofastsem.  I'm not able to locate an
option in the kernel (2.6.24.3) to enable fastsem, nor do I see an
option in Xenomai's menuconfig to allow nofastsem.  What am I missing?

Thanks in advance...

-Rob

Re: [Xenomai-help] nofastsem

[Sebastian Smolorz]

Rob Wheeler wrote:
> I've been running revision 4007 from the Xenomai svn trunk
> successfully, and I recently tried building and running a more recent
> revision (4060).  The kernel and user code all build fine, but when I
> try to run a Xenomai application I get a message saying the userland
> wants fastsem and the kernel has nofastsem.  I'm not able to locate an
> option in the kernel (2.6.24.3) to enable fastsem, nor do I see an
> option in Xenomai's menuconfig to allow nofastsem.  What am I missing?

There is a new option since rev. 4043 called XENO_FASTSEM. It is set by 
default for x86_32. Have a look at your kernel config file and search 
for that term. Please make sure that you build your xenomai-patched 
kernel and you userland libs and applications with the same revision of 
xenomai and don't forget to install them all on your target.

BTW, for which architecture are you building xenomai?

-- 
Sebastian

Re: [Xenomai-help] nofastsem

[Gilles Chanteperdrix]

Rob Wheeler wrote:
> I've been running revision 4007 from the Xenomai svn trunk
> successfully, and I recently tried building and running a more recent
> revision (4060).  The kernel and user code all build fine, but when I
> try to run a Xenomai application I get a message saying the userland
> wants fastsem and the kernel has nofastsem.  I'm not able to locate an
> option in the kernel (2.6.24.3) to enable fastsem, nor do I see an
> option in Xenomai's menuconfig to allow nofastsem.  What am I missing?
> 
> Thanks in advance...

This fastsem stuff for x86_32 contained several mistakes, all of them
hopefully corrected now. Resync, and it should get better.

-- 
                                                 Gilles.