From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Thierry Bultel <thierry.bultel@wanadoo.fr>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] nanosleep and clock_nanosleep increase MSW counter without SIGXCPU
Date: Fri, 05 Oct 2012 14:31:10 +0200 [thread overview]
Message-ID: <506ED30E.5050002@xenomai.org> (raw)
In-Reply-To: <506EACBD.8090307@wanadoo.fr>
On 10/05/2012 11:47 AM, Thierry Bultel wrote:
> Hi,
>
> My config is linux-3.2.21+xenomai-2.6.1 ; ipipe-core-3.2.21-arm-1.patch,
> on qemu-system-arm ; versatile express. I have CONFIG_SMP to NO
>
> My test case is quite simple.
> The main process is as such:
>
> -----------------
>
> int main ( ......
>
>
> pthread_set_name_np(pthread_self(), "MAIN PROCESS");
>
> if (pthread_set_mode_np(0, PTHREAD_WARNSW) != 0)
> {
> LOG("pthread_set_mode_np FAILED\n");
> exit(0);
> }
>
> for (;;)
> {
> struct timespec delay = { 10, 0 };
> nanosleep(&delay,NULL);
> }
>
> ----------
>
> The MSW counter keeps increasing, whereas no SIGXCPU is delivered:
>
> [root@buildroot ~]# cat /proc/xenomai/stat
> CPU PID MSW CSW PF STAT %CPU NAME
> 0 0 0 1131 0 00500080 99.6 ROOT
> 0 717 95 189 0 00b40184 0.0 MAIN PROCESS
> 0 0 0 381587 0 00000000 0.4 IRQ34: [timer]
>
>
> The build command:
>
> arm-linux-gcc -fmessage-length=0 -pipe -Wall -Werror -g -DNOT_USE_DYNAMIC_LOADING
> -I/home/tbultel/workspace/Buildroot/output/host/usr/arm-unknown-linux-gnueabi/sysroot/usr/include/xenomai
> -D_GNU_SOURCE -D_REENTRANT -D__XENO__
> -I/home/tbultel/workspace/Buildroot/output/host/usr/arm-unknown-linux-gnueabi/sysroot/usr/include/xenomai/posix
> -c /home/tbultel/workspace/agv/linux/simerimcan/sim_agv_can_main.c
> -o /home/tbultel/workspace/agv/linux/simerimcan/build.xenomai/obj/sim_agv_can_main.o
> -MMD -MF/home/tbultel/workspace/agv/linux/simerimcan/build.xenomai/obj/sim_agv_can_main.d
> -I. -I/home/tbultel/workspace/Buildroot/output/host/usr/arm-unknown-linux-gnueabi/sysroot/opt/can/include/canfestival-xenomai
> -I"="/usr/include/xenomai -I"="/usr/include/xenomai/posix
>
>
> arm-linux-gcc -lrt -lpthread -rdynamic
> -L/home/tbultel/workspace/Buildroot/output/host/usr/arm-unknown-linux-gnueabi/sysroot/usr/lib
> -lxenomai -lpthread_rt
> -Wl,@/home/tbultel/workspace/Buildroot/output/host/usr/arm-unknown-linux-gnueabi/sysroot/usr/lib/posix.wrappers
> -o /home/tbultel/workspace/agv/../bin/arm/sim_agv_can-xenomai
> /home/tbultel/workspace/agv/linux/simerimcan/build.xenomai/obj/sim_agv_can_main.o
> /home/tbultel/workspace/agv/linux/simerimcan/build.xenomai/obj/sim_agv_can_bus.o
> /home/tbultel/workspace/agv/linux/simerimcan/build.xenomai/obj/sim_erim_can_log.o
In order to know if the link process worked correctly with this funky
argument order, I would use arm-linux-nm -s
--
Gilles.
next prev parent reply other threads:[~2012-10-05 12:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-05 9:47 [Xenomai] nanosleep and clock_nanosleep increase MSW counter without SIGXCPU Thierry Bultel
2012-10-05 10:10 ` Gilles Chanteperdrix
2012-10-05 10:22 ` Thierry Bultel
2012-10-05 12:31 ` Gilles Chanteperdrix [this message]
2012-10-05 13:23 ` Thierry Bultel
2012-10-05 13:30 ` Gilles Chanteperdrix
2012-10-08 14:42 ` Thierry Bultel
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