From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gilles Chanteperdrix MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <18408.10253.285795.914555@domain.hid> Date: Mon, 24 Mar 2008 23:15:41 +0100 In-Reply-To: <18407.58512.849738.173184@domain.hid> References: <16201.81.252.86.91.1205764989.squirrel@domain.hid> <18400.53752.538963.384358@domain.hid> <6621.81.252.86.91.1205927700.squirrel@domain.hid> <2ff1a98a0803190613r7572d87eibef16aecf39ef71a@domain.hid> <10023.62.39.72.60.1205940829.squirrel@domain.hid> <18407.43111.568301.509775@domain.hid> <18407.58512.849738.173184@domain.hid> Subject: Re: [Xenomai-help] Application crash List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Fabien MAHOT , xenomai@xenomai.org Gilles Chanteperdrix wrote: > Gilles Chanteperdrix wrote: > > Fabien MAHOT wrote: > > > >> Are you sure this is the right .config ? I see that priority coupling > > > >> is enabled. > > > > > > > > I want the priority coupling be enabled. (I have a problem when it was > > > > disabled : I have a main thread with highest priority which creates other > > > > threads. When all the threads are created, the main thread reduces its > > > > priority at the minimum, broadcats a condition and unlock the associated > > > > mutex to start the other threads . But, after that main thread unlocks the > > > > mutex, it stays a short while in execution in spite of its priority) > > > > > > ---> I make a mistake, when Main thread reduces its priority at the > > > minimum (with pthread_setschedparam), it's not preempted by a thread which > > > has an higher priority and which is ready to run. > > > > > > > > > Could you try to run my program on your arm with enabled priority > > > coupling, please? > > > > I see that you have the interrupt shield enabled, could you try and > > disable it ? The thread "thread2" never suspends, with the interrupt > > shield enabled, it means that Linux will never heandle its IRQs. > > That said, the interrupt shield should not enter in action since the > shield bit is not armed for any thread. And indeed, your program runs > fine with the same configuration as you (including interrupt shield) on > ARM. > > I tend to think about an hardware or configuration issue. I will now try > to run your example on an x86 with the same configuration as you, to see > if it is a configuration issue. I have now tested your configuration on a PC. Your example works fine. So, it is now official, you have an hardware issue. This may be a peculiarity of Geode hardware, or some missing stuff in Xenomai. -- Gilles.