Hi Everyone, I'm trying to get PREEMPT RT kernel running on beagleboard (ARM). After resolving many issues with the patch on the Angstrom stable distribution, I've got the RT kernel running. root@beagleboard:~/rt-tests# uname -a Linux beagleboard 2.6.29.6-rt24-omap1 #1 PREEMPT RT Sun Jun 13 17:51:45 CEST 2010 armv7l unknown So, it seems to be fine. But trying to run the Cyclictest tells me that RT is not working. 0% - load root@beagleboard:~/rt-tests# ./cyclictest -t1 -p 80 -n -i 10000 -l 10000 -q T: 0 ( 2352) P:80 I:10000 C: 10000 Min: 15 Act: 203 Avg: 195 Max: 365 100% - load root@beagleboard:~/rt-tests# ./cyclictest -t1 -p 80 -n -i 10000 -l 10000 -q T: 0 ( 2348) P:80 I:10000 C: 10000 Min: 39 Act:48697 Avg: 1584 Max: 48727 I'm bit lost in how to debug the problem. I checked the /proc/config.gz root@beagleboard:~/rt-tests# zcat /proc/config.gz | grep PREEMPT CONFIG_PREEMPT_RCU=y # CONFIG_PREEMPT_RCU_TRACE is not set # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT_DESKTOP is not set CONFIG_PREEMPT_RT=y CONFIG_PREEMPT=y CONFIG_PREEMPT_SOFTIRQS=y CONFIG_PREEMPT_HARDIRQS=y CONFIG_DEBUG_PREEMPT=y # CONFIG_PREEMPT_TRACER is not set I would really appreciate some suggestions on how to identify the problem. Regards, Maksym Parkachov. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
