I haven't tested Xenomai on RPI3 in 32-bit mode, I think someone else tried it a while ago with out using Yocto and may be able to share his experiences (Gustav?). I haven't seen this issue on Raspberry pi 2b. You can take a look at the output of ps and see if anything is using a lot of the CPU. I'm finishing up some RPI0 and 1 work now but I'll hopefully move on to look at the rpi3 in the next couple of weeks.
-Greg On Tue, May 29, 2018 at 4:37 PM, Steve Pavao <ste...@korgrd.com> wrote: > Hello, > > I’m having an overheating problem when running xenomai 3.0.6 on Raspberry Pi > 3 with the recipes and defconfig from > https://github.com/pficheux/meta-xenomai > <https://github.com/pficheux/meta-xenomai> , but I’m using the altered kernel > setting CONFIG_HZ=1000. > > Under this configuration, the RPi3 overheats when idle. I’d like to try to > understand why. Is there perhaps a defconfig settting I need to adjust, so > that there will be not be so much heat-generating activity when the system is > idle? I did not observe anything useful with ps. > > This is my first time successfully building and running xenomai on RPi3 > 32-bit using yocto recipes and a defconfig. I built in rocko branch. I > notice there are many options in the defconfig which may affect operation. I > do not 100% understand all these options, but I have started googling them to > see if I can solve this issue. > > I appreciate any ideas you may have. > > Steve Pavao > Korg R&D > > some of dmesg: > > [ 0.000000] Linux version 4.9.45-xeno (oe-user@oe-host) (gcc version 7.3.0 > (GCC) ) #2 SMP Tue May 29 19:19:23 UTC 2018 > [ 0.000000] CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7), cr=10c5383d > > [ 0.000000] arm_arch_timer: Architected cp15 timer(s) running at 19.20MHz > (phys). > [ 0.000000] I-pipe, 19.200 MHz clocksource, wrap in 960767920505705 ms > [ 0.000000] clocksource: ipipe_tsc: mask: 0xffffffffffffffff max_cycles: > 0x46d987e47, max_idle_ns: 440795202767 ns > [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff > max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns > [ 0.000007] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every > 4398046511078ns > [ 0.000025] Switching to timer-based delay loop, resolution 52ns > [ 0.001464] Interrupt pipeline (release #2) > > [ 0.164653] [Xenomai] scheduling class idle registered. > [ 0.164676] [Xenomai] scheduling class rt registered. > [ 0.164820] I-pipe: head domain Xenomai registered. > [ 0.166498] [Xenomai] Cobalt v3.0.6 (Stellar Parallax) > > _______________________________________________ > Xenomai mailing list > Xenomai@xenomai.org > https://xenomai.org/mailman/listinfo/xenomai _______________________________________________ Xenomai mailing list Xenomai@xenomai.org https://xenomai.org/mailman/listinfo/xenomai
