On 11/06/2011 02:02 PM, Gilles Chanteperdrix wrote: > On 11/06/2011 08:54 PM, at91_enthus wrote: >> On 11/06/2011 01:03 PM, Gilles Chanteperdrix wrote: >>> On 11/06/2011 08:00 PM, at91_enthus wrote: >>>> On 11/06/2011 12:32 PM, Gilles Chanteperdrix wrote: >>>>> On 11/06/2011 07:25 PM, at91_enthus wrote: >>>>>> On 11/06/2011 12:10 PM, at91_enthus wrote: >>>>>>> On 11/06/2011 12:01 PM, Gilles Chanteperdrix wrote: >>>>>>>> On 11/06/2011 06:56 PM, at91_enthus wrote: >>>>>>>>> Hi. >>>>>>>>> >>>>>>>>> I gave Xenomai 2.6.0 a try and installed a newly patched kernel on my >>>>>>>>> AT91SAM9G20 board. >>>>>>>>> >>>>>>>>> Here is my setup: >>>>>>>>> >>>>>>>>> proc: AT91SAM9G20 >>>>>>>>> kernel: 2.6.35.9 >>>>>>>>> OS: embedded Debian Squeeze >>>>>>>>> >>>>>>>>> The board boots fine up to stage 2 (user terminal). Sometimes, I am >>>>>>>>> able >>>>>>>>> to get a login terminal, despite seg fault messages. >>>>>>>>> >>>>>>>>> A similar behavior occurs in a Xenomai capable 2.6.37 kernel, only >>>>>>>>> without the fault messages. In this case the board simply freezes. >>>>>>>>> >>>>>>>>> I included the files (.config and fault messages) in the attachments. >>>>>>>>> >>>>>>>> You enabled CONFIG_FCSE_GUARANTEED, I do not think Debian squeeze can >>>>>>>> boot with that, you need a real embedded filesystem, or use >>>>>>>> CONFIG_FCSE_BEST_EFFORT. >>>>>>>> >>>>>>>> >>>>>>> Since I've started looking in to Xenomai, I have been using FCSE >>>>>>> "guaranteed" and "best efort" along with both Debian Squeeze and Lenny >>>>>>> (Xenomai 2.5 series) without any issues. >>>>>>> >>>>>>> I'll change the FCSE setting to see if I get a different behavior. >>>>>>> >>>>>>> Regards. >>>>>> I put the results for CONFIG_FCSE_BEST_EFFORT in the attachment. >>>>> Unusable. To make it usable, the following options are lacking: >>>>> CONFIG_FCSE_MESSAGES >>>>> CONFIG_FRAME_POINTER >>>> I couldn't find this option. >>> You need to disable STACK_UNWIND. Without it, some stack traces are >>> unreadable such as the one you keep sending. >>> >> rc.local looked suspicious in the debug messages. >> >> To be more exact, it contained the following lines: >> >> #! /bin/sh >> chmod 777 /proc/xenomai/latency >> echo "1000" > /proc/xenomai/latency >> exit 0 >> >> The setting came from the previous installation, because I kept getting >> negative values for latencies. > Note that you can hardwire a value for the latency in the kernel > configuration. > >> Anyway, I removed the offending lines and my system boots correctly. If >> I enter the lines by hand, I get no segfaults. However, if I try to >> execute /etc/rc.local (with the two lines uncommented) by hand, the >> kernel seg faults and the system freezes. >> >> Odd. > Yes, really odd. I am unable to reproduce this issue. > > What was the last version known to be working?
2.5.6. Also, I had no issues with 2.5.5, either. I intend to test the 2.6 release candidates later this week. Thanks a lot. _______________________________________________ Xenomai-help mailing list Xenomai-help@gna.org https://mail.gna.org/listinfo/xenomai-help
