Yes the patch solved the problem. Thanks for the rapid response.
On Tue, 2011-06-28 at 20:59 +0200, Gilles Chanteperdrix wrote:
> On 06/28/2011 08:25 PM, Henry Bausley wrote:
> >
> > Using the program below the used main heap continues to grow forever.
> >
> > int main(void)
> > {
> > sem_t *mutex;
> > mutex = sem_open(SEM_NAME,O_CREAT,0644,1);
> > sem_close(mutex);
> > sem_unlink(SEM_NAME);
> > return 0;
> > }
> >
> > I am using xenomai 2.5.6 with the ipipe-2.6.35.9-powerpc-2.12-02
> > kernel. Below you can see the used heap continually grow when
> > executing the above program.
> >
> Should be fixed with the following patch:
>
> diff --git a/ksrc/skins/posix/syscall.c b/ksrc/skins/posix/syscall.c
> index 3c7f7ee..c9e84a6 100644
> --- a/ksrc/skins/posix/syscall.c
> +++ b/ksrc/skins/posix/syscall.c
> @@ -718,17 +718,20 @@ static int __sem_close(struct pt_regs *regs)
>
> usm = assoc2usem(assoc);
>
> - if ((closed = (--usm->refcnt == 0)))
> + err = sem_close(&sm.native_sem);
> +
> + if (!err && (closed = (--usm->refcnt == 0)))
> pse51_assoc_remove(&pse51_queues()->usems,
> (u_long)sm.shadow_sem.sem);
>
> - err = sem_close(&sm.native_sem);
> -
> xnlock_put_irqrestore(&pse51_assoc_lock, s);
>
> if (err)
> return -thread_get_errno();
>
> + if (usm->refcnt == 0)
> + xnfree(usm);
> +
> return __xn_safe_copy_to_user((void __user *)__xn_reg_arg2(regs),
> &closed, sizeof(int));
> }
>
>
> >
> >
> >
> >
> >
> >
> >
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> >
> >
> > _______________________________________________
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> >
>
>
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