From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Thu, 16 Mar 2006 19:00:16 +0100
From: Jan Kiszka <jan.kiszka@domain.hid>
MIME-Version: 1.0
Subject: Re: [Xenomai-core] Re: POSIX include problem
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Gilles Chanteperdrix wrote:
> Jan Kiszka wrote:
>  > Hi Gilles,
>  >=20
>  > don't know yet what's going wrong, but the following demo code doesn=
't
>  > compile against the POSIX skin due to unresolved SIG_BLOCK:
>  >=20
>  > #include <pthread.h>
>  > #include <signal.h>
>  >=20
>  > int main()
>  > {
>  >         return SIG_BLOCK;
>  > }
>  >=20
>  > Comment out the pthread include, and it will work again. Any ideas?
>=20
> Fixed in revision 714
>=20

Yep, thanks.

I found this while trying Thomas Gleixner's cyclic test over the POSIX
skin (http://www.tglx.de/projects/misc/cyclictest). After fixing a
rather ugly bug in his code (missing mlockall) I ran into a yet unknown
issue with the POSIX skin: the code just hangs when wrapped to Xenomai.

Compilation:
gcc -o cyclictest cyclictest.c <posix-cflags> <posix-ldflags>

Invocation:
cyclictest -n -p 99

Maybe its just real-time starvation (but the watchdog doesn't trigger,
and I do not see why it should starve), maybe its a crash (will try to
attach a serial console later). Anyway, it's an easy test case (and also
a nice tool), so you may want to have a look as well.

Jan


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