Re: Getting started with Xenomai, installing on Debian, problem with sysregd

[<cern@tuta.io>]

OK, the lingerings seem to be caused by me being an idiot and not knowing exactly what pause() does. Other issues stand.

C.


May 16, 2019, 11:56 PM by xenomai@xenomai.org:

>
> Hello,
> I am getting into Xenomai world by installing co-kernel onto new netinstall (with Desktop) Debian 10 installation with kernel version 4.14.111, I-pipe version  ipipe-core-4.14.111-x86-3.patch and Xenomai branch stable/v3.0.x installed as a Debian packages by use of the Xenomai Debian folder. (Based on Installation guide from Xenomai wiki and couple articles found on the web.)
>
> The installation of kernel patched package is without problem. Installation of Xenomai library packages is also uneventful. I modified the debian/rules file:
>
> CONFIG_OPTS = --prefix=/usr \
>             --includedir=/usr/include/xenomai \
>             --mandir=/usr/share/man \
>             --with-testdir=/usr/lib/xenomai/testsuite \
>             --enable-smp \
>             --enable-pshared \
>             --enable-registry \
>             --with-core=cobalt \
>             --with-pic
>
> And I am able to run latency test both as a root and as a regular user (who is member of the xenomai group).
>
> Then I tried simple test:
>
> #include <stdio.h>
> #include <stdbool.h>
> #include <xenomai/init.h>
> #include <alchemy/task.h>
> #include <xenomai/tunables.h>
>
> RT_TASK task;
> RT_TASK loop_task;
>
> void loop_task_task(void *arg)
> {
> RT_TASK *currtask;
> currtask = rt_task_self();
> rt_task_set_periodic(currtask, TM_NOW, 100000);
> RTIME then = rt_timer_read();
>   while(true){
>     printf("Loop time: %.5f ms\n", (rt_timer_read() - then)/1000000.0);
>     rt_task_wait_period(NULL);
>   }
> }
>
> int main(int argc, char *const *argv) {
>
> set_runtime_tunable(verbosity_level,10);
>
> int retval;
> retval = rt_task_create(&task,"First",0,98,0);
> printf("%i return on create\n",retval);
>
>
> retval = rt_task_create(&loop_task, "loop_task", 0,99,0);
> retval = rt_task_start(&loop_task,loop_task_task, NULL);
> pause();
> retval = rt_task_delete(&loop_task);
> retval += rt_task_delete(&task);
> printf("%i return on delete\n",retval);
> printf("%s", "END");
> return 0;
> }
>
> Which run as a root without problem, but with regular user there is a problem of:
>
> sysregd: create_directory_recursive("/var/run/xenomai/orion/anon@684"): Permission denied
> sysregd: create_directory_recursive("/var/run/xenomai/orion/anon@684"): Permission denied
> sysregd: create_directory_recursive("/var/run/xenomai/orion/anon@684"): Permission denied
>    0"600.015| WARNING: [main] cannot connect to registry daemon
>    0"600.059| WARNING: [main] setup call copperplate failed
>    0"600.072| BUG in __xenomai_init(): [main] initialization failed, EAGAIN
>
> When run as regular user with --no-registry, it again run.
>
> Looking at the registry when run as a root also gives odd info about tasks, respectively gives no info (readable). Only info is given on system in system folder.
>
> The First file in tasks opened with nano gives:
>
> ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@$
>
> Also, under the /var/run/xenomai/root/ there seems to hang tasks which should already be deleted.
>
> From > https://unix.stackexchange.com/questions/175380/how-to-list-all-running-daemons <https://unix.stackexchange.com/questions/175380/how-to-list-all-running-daemons>>  <> https://unix.stackexchange.com/questions/175380/how-to-list-all-running-daemons <https://unix.stackexchange.com/questions/175380/how-to-list-all-running-daemons>> > I tried the 
> $ ps -eo 'tty,pid,comm' | grep ^?
> but see no sysregd. Is there way to determine if sysregd works correctly?
>
> Thank you,
> Cern.
>