On 10/07/2015 11:01 AM, Johann Obermayr wrote: > Am 05.10.2015 um 13:54 schrieb Philippe Gerum: >> On 10/05/2015 12:53 PM, Johann Obermayr wrote: >>> Am 29.09.2015 um 17:56 schrieb Philippe Gerum: >>>> On 09/29/2015 02:38 PM, Johann Obermayr wrote: >>>>> Am 25.09.2015 um 10:44 schrieb Harald Feßl: >>>>>> Hi >>>>>> >>>>>> I have done a ipipe trace for some working and one non working cycle. >>>>>> The trace is stopped after the non working cycle. >>>>>> I have marked the working cycles with green and the non working cycle >>>>>> with red in my graphical trace. >>>>>> The ipipe trace and graphical trace are stopped at the same time. >>>>>> >>>>>> After the non working cycle the system is working correct again for >>>>>> some seconds or minutes. >>>>>> >>>>>> I think the problem is, that the migration of the task "cyclic" from >>>>>> xenomai to linux, needs sometimes some ms. >>>>>> >>>>>> Harald >>>>>> >>>>>> Harald Fessl >>>>>> Betriebssystem >>>>>> ________________________________ >>>>>> >>>>>> SIGMATEK GmbH & Co KG >>>>>> Sigmatekstraße 1 >>>>>> 5112 Lamprechtshausen >>>>>> Österreich / Austria >>>>>> >>>>>> Tel.: +43/6274/4321-0 >>>>>> Fax: +43/6274/4321-18 >>>>>> E-Mail: harald.fe...@sigmatek.at >>>>>> http://www.sigmatek-automation.com >>>>>> >>>>>> ***********************Please >>>>>> note:************************************ >>>>>> This email and all attachments are confidential and intended >>>>>> solely for >>>>>> the person or entity to whom it is addressed. If you are not the >>>>>> named >>>>>> addressee you must not make this email and all attachments accessible >>>>>> to any other person. If you have received this email in error please >>>>>> delete it together with all attachments. >>>>>> *********************************************************************** >>>>>> >>>>>> >>>>>> Am 23.09.2015 um 12:36 schrieb Jan Kiszka: >>>>>>> On 2015-09-23 10:51, Harald Feßl wrote: >>>>>>>> Hi >>>>>>>> >>>>>>>> The linux tasks are not blocked (not all). >>>>>>>> I think the problem is , that the linux scheduler function in the >>>>>>>> kernel >>>>>>>> is not called for some ms. >>>>>>>> I have also traced the calls to the scheduler function >>>>>>>> "static int __sched __schedule(void)" >>>>>>>> and sometimes when the decribed problem occur this function is not >>>>>>>> called while no linux task are running. >>>>>>> If no task is runnable, there is also no reason to invoke schedule. >>>>>>> >>>>>>> Please post a ftrace log of your system, covering both a working >>>>>>> and a >>>>>>> non-working cycle, including cobalt* and at least sched and irq >>>>>>> events. >>>>>>> >>>>>>> Jan >>>>>>> >>>>> Hello Philippe and Xenomai forum, >>>>> >>>>> we have some trouble with a xenomai task (cyclic with prio 30) after >>>>> switching to secondary domain. >>>>> Linux ARM 3.0, Xenomai 2.6.2.1, and CONFIG_XENO_OPT_PRIOCPL=y. >>>> PRIOCPL should be disabled, and all tests redone in this context. >>>> >>> Hello, >>> >>> the result is the same. >>> Some time your cyclic task will not schedule after switching to >>> secondary domain. >>> >> I just noticed you were using 2.6.2.1. Several bugs in the domain switch >> mechanism have been fixed since then until 2.6.4, and the latter still >> suffers a recently SMP rescheduling issue already fixed in the 2.6.x >> maintenance branch. >> >> You should try running your code on top of that branch before diving any >> deeper, I suspect you might be facing a bug that has been fixed already. >> > Hello, > > we have test it with Linux 3.10.53 (Freescale) and Xenomai 2.6.4. > But we see the same problem. >
Ok, so please send a trace freeze with that configuration illustrating the problem, with PRIOCPL disabled. The previous traces you sent include RPI noise, which makes their interpretation uncertain. -- Philippe. _______________________________________________ Xenomai mailing list Xenomai@xenomai.org http://xenomai.org/mailman/listinfo/xenomai
