Perrine Martignoni wrote:
> On 5/9/07, *Gilles Chanteperdrix* <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
> Perrine Martignoni wrote:
> > Hello,
> >
> > I've build a xenomai test application with Posix skin wich run on an
> > ARM9. The application works well one time, and when I want to launch
> > again my application, I have this error message :
> >
> >
> > Xenomai Posix skin init: pthread_setschedparam: Resource temporarily
> > unavailable
> >
> >
> >
> > I think something was bad cancelled but I don't see.
>
> Resource temporarily unavailable is EAGAIN, it means that there is not
> enough memory to create the real-time thread. Could you send us the
> contents of /proc/xenomai/heap before and after running your
> application ?
>
> I have exactly the same problem with cyclictest.
>
> And here is the context of /proc/xenomai/heap before :
>
> size=130560:used=64:pagesz=512
>
> and after :
>
>
> size=130560:used=64:pagesz=512
>
>
>
> It doesn't change.
Ok, I will check this at home, since the ARM I have at work behaves
differently.
If you have some spare time, could you apply the attached patch,
recompile the kernel, and run your application ? This patch prints in
the kernel console which step in pthread_setschedparam returns an error.
--
Gilles Chanteperdrix
Index: ksrc/skins/posix/syscall.c
===================================================================
--- ksrc/skins/posix/syscall.c (révision 2429)
+++ ksrc/skins/posix/syscall.c (copie de travail)
@@ -202,13 +202,19 @@
err = pthread_create(&k_tid, &attr, NULL, NULL);
- if (err)
+ if (err) {
+ printk("pthread_create returned %d\n", err);
return ERR_PTR(-err);
+ }
err = xnshadow_map(&k_tid->threadbase, NULL);
+ if (err)
+ printk("xnshadow_map returned %d\n", err);
- if (!err && !__pthread_hash(hkey, k_tid))
+ if (!err && !__pthread_hash(hkey, k_tid)) {
+ printk("pthread_hash returned NULL\n");
err = -EAGAIN;
+ }
if (err)
pse51_thread_abort(k_tid, NULL);
@@ -244,8 +250,10 @@
/* If the syscall applies to "current", and the latter is not
a Xenomai thread already, then shadow it. */
k_tid = __pthread_shadow(curr, &hkey);
- if (IS_ERR(k_tid))
+ if (IS_ERR(k_tid)) {
+ printk("__pthread_shadow: %d\n", PTR_ERR(k_tid));
return PTR_ERR(k_tid);
+ }
promoted = 1;
}
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