On Mon, 2011-05-02 at 10:58 +0200, Henri Roosen wrote: > Hi Philippe, > > Thanks for the patch! Unfortunately this does not resolve the 'stuck > in primary of prio 0 after rt_task_send'. > > I'll attach the basic test application that reproduces it. All prints > should contain secondary mode because all tasks are prio 0 and the > auto-relax patches are compiled in. > > The producer which does the rt_task_send() call does not auto-relax to > secondary mode.
Your example code works with this added patch on top of both 2.5.x and -head: http://git.xenomai.org/?p=xenomai-head.git;a=commit;h=82200f0b66908a5366a72355b3b70472031d68fb > > Thanks, > Henri. > > On Sun, May 1, 2011 at 5:01 PM, Philippe Gerum <[email protected]> wrote: > > On Mon, 2011-03-28 at 12:56 +0200, Henri Roosen wrote: > >> Hi, > >> > >> We are using the back-ported auto-relax patches of Xenomai-head on the > >> 2.5.6 release on Linux 2.6.32.15. > >> > >> We noticed that our prio-0 shadowed task is not always auto-relaxed > >> and traced it back to a problem with rt_task_send/receive/reply. The > >> rt_task_send/receive/reply mechanism uses the xnsynch primitive to > >> implement its PIP. However, this mechanism only acquires the xysynch > >> primitive without releasing it. This results in the resource counter > >> never be 0 anymore and thus breaking the auto-relaxed which is based > >> on this resource counter. > >> > >> I guess releasing the xnsynch resets the owner, which is not wanted > >> either.. > >> Any idea for a fix? > > > > Could you give a try at this one? TIA, > > http://git.xenomai.org/?p=xenomai-rpm.git;a=commit;h=becb13774ab687d016857f6a972f4124fbd10c44 > > > >> > >> Thanks, > >> Henri. > >> > >> > >> On Tue, Oct 12, 2010 at 9:16 AM, Henri Roosen <[email protected]> > >> wrote: > >> > That was a problem with our build environment. > >> > > >> > Patches work and the base-prio 0 task nicely switches to the Linux > >> > domain and competes with the Linux threads for the processor. Now we > >> > don't loose TCP connection to our target anymore. > >> > > >> > Thanks! > >> > > >> > Henri > >> > > >> > On Mon, Oct 11, 2010 at 5:35 PM, Henri Roosen <[email protected]> > >> > wrote: > >> >> Thanks for the patches Philippe. I applied them to xenomai 2.5.5. > >> >> Tests with a basic application look good, however our bigger project > >> >> doesn't. I checked already if we release all mutexes; the base prio 0 > >> >> thread thread released all of them but stays in primary domain after a > >> >> xenomai call. > >> >> > >> >> I'll setup a clean environment, just to be sure, and will investigate > >> >> further tomorrow. > >> >> > >> >> On Mon, Oct 11, 2010 at 11:31 AM, Andreas Glatz <[email protected]> > >> >> wrote: > >> >>> > >> >>>> > >> >>>> The auto-relax feature is now available from -head (upcoming > >> >>>> 2.6.x). You > >> >>>> will need all commits from > >> >>>> http://git.xenomai.org/?p=xenomai- > >> >>>> head.git;a=commit;h=b75cec19387e561f82ac55595db8c993b049f071 > >> >>>> to > >> >>>> http://git.xenomai.org/?p=xenomai- > >> >>>> head.git;a=commit;h=6653a9e8eb7339b749989bd74adc3ac3bd29e4da > >> >>>> > >> >>>> -- > >> >>>> Philippe. > >> >>>> > >> >>>> > >> >>> > >> >>> Very nice. Will try it out soon on my G4 PB Aluminium. > >> >>> > >> >>> Andreas > >> >>> > >> >>> > >> >>> _______________________________________________ > >> >>> Xenomai-help mailing list > >> >>> [email protected] > >> >>> https://mail.gna.org/listinfo/xenomai-help > >> >>> > >> >> > >> > > > > > -- > > Philippe. > > > > > > -- Philippe. _______________________________________________ Xenomai-help mailing list [email protected] https://mail.gna.org/listinfo/xenomai-help
