On 12/11/14 17:17, Jennifer Averett wrote:
>-----Original Message-----
>From: Sebastian Huber [mailto:sebastian.hu...@embedded-brains.de]
>Sent: Wednesday, November 12, 2014 9:16 AM
>To: Jennifer Averett;rtems-de...@rtems.org
>Subject: Re: [PATCH 1/3] smpschedaffinity02: Change semaphore attributes.
>
>On 12/11/14 15:48, Jennifer Averett wrote:
> >Change semaphore attributes to prevent semaphore from being locked
>and
> >never released upon a context switch.
> >---
> > testsuites/smptests/smpschedaffinity02/init.c | 7 ++-----
> > 1 file changed, 2 insertions(+), 5 deletions(-)
> >
> >diff --git a/testsuites/smptests/smpschedaffinity02/init.c
> >b/testsuites/smptests/smpschedaffinity02/init.c
> >index a3e0ddf..43efc99 100644
> >--- a/testsuites/smptests/smpschedaffinity02/init.c
> >+++ b/testsuites/smptests/smpschedaffinity02/init.c
> >@@ -140,11 +140,8 @@ static void test(void)
> > sc = rtems_semaphore_create(
> > rtems_build_name('S', 'E', 'M', '0'),
> > 1,
> >- RTEMS_LOCAL |
> >- RTEMS_SIMPLE_BINARY_SEMAPHORE |
> >- RTEMS_NO_INHERIT_PRIORITY |
> >- RTEMS_NO_PRIORITY_CEILING |
> >- RTEMS_FIFO,
> >+ RTEMS_BINARY_SEMAPHORE |
> >+ RTEMS_MULTIPROCESSOR_RESOURCE_SHARING,
> > 0,
> > &task_sem
> > );
>
>Why do you use RTEMS_MULTIPROCESSOR_RESOURCE_SHARING here?
It just needed to use a binary instead of a simple binary. I think it could
also
have been resolved with the following settings:
RTEMS_BINARY_SEMAPHORE | RTEMS_PRIORITY | RTEMS_INHERIT_PRIORITY
The MrsP semaphores are broken with the affinity scheduler.
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
PGP : Public key available on request.
Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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