rtapi -- uspace -- "Using POSIX non-realtime"

Hi,
I have the same problem in a: Debian 10 4.19.0-14-rt-amd64 kernel.
Where can I check the last patch available?
Thanks a lot!

Hi Andy, Thaks for reply!

andypugh wrote:

Are you sure that you have the same issue as this thread is discussing? /quote]

I'm a beginner and have this one:

"Failed to get reference clock time: Input/output error
Shutting down and cleaning up LinuxCNC...
task: 66304 cycles, min=0.000047, max=0.044388, avg=0.001064, 2 latency excursions (> 10x expected cycle time of 0.001000s)
Note: Using POSIX non-realtime
avc@avc:~/LinuxCncRip/scripts$ "

Did wrote:

Firstly I tried to install:

"LinuxCNC 2.8.0 Debian 10 Buster PREEMPT-RT ISO"
from the main page of download, but I had to install the headers and I wasn't able to find the headers for the kernel of this versión and installed the newer ones.

Did wrote:

I'm trying to install EtherCAT Hal driver and a RIP installation is needed.

What does uname -a say?

avc@avc:~$ uname -a
Linux avc 4.19.0-14-rt-amd64 #1 SMP PREEMPT RT Debian 4.19.171-2 (2021-01-30) x86_64 GNU/Linux
avc@avc:~$

Thanks a lot!!

Hi andy
I have found a text file with the terminal out from when I did it.
Itś more, I had to do several times due to other problems and the first ones I had to apply:

configure --with-realtime=uspace --enable-non-distributable=yes

Is it the Kernel right?

V-max

Hi Andy

Done but...

During the first try to start Linuxcnc there is not Posix note.
I do chmod 777 to rtapi_app and appear again the Posix note.

Thanks.

seem you missed command "sudo make setuid" after make lcnc

Hi andy

Thanks a lot for your help and sorry for the delay, I'm in a hurry lately.

I did CHMOD because I had permission problems:

avc@avc:~/LinuxCncRip/src$ sudo make setuid
chown root ../bin/rtapi_app
chmod 4750 ../bin/rtapi_app
chown root ../bin/linuxcnc_module_helper
chmod 4750 ../bin/linuxcnc_module_helper
avc@avc:~/LinuxCncRip/src$ cd ..
avc@avc:~/LinuxCncRip$ cd scripts/
avc@avc:~/LinuxCncRip/scripts$ . ./rip-environment

avc@avc:~/LinuxCncRip/scripts$ linuxcnc
LINUXCNC - 2.8.1
Machine configuration directory is '/home/avc/linuxcnc/configs/Maquina_ethercat'
Machine configuration file is 'maquinaEthercat.ini'
Starting LinuxCNC...
Found file(REL): ./maquinaEthercat.hal
./maquinaEthercat.hal:6: execv(/home/avc/LinuxCncRip/bin/rtapi_app): Permission denied
./maquinaEthercat.hal:6: waitpid failed /home/avc/LinuxCncRip/bin/rtapi_app trivkins
./maquinaEthercat.hal:6: /home/avc/LinuxCncRip/bin/rtapi_app exited without becoming ready
./maquinaEthercat.hal:6: insmod for trivkins failed, returned -1
Shutting down and cleaning up LinuxCNC...
/home/avc/LinuxCncRip/scripts/realtime: line 176: /home/avc/LinuxCncRip/bin/rtapi_app: Permission denied
LinuxCNC terminated with an error. You can find more information in the log:
/home/avc/linuxcnc_debug.txt
and
/home/avc/linuxcnc_print.txt
as well as in the output of the shell command 'dmesg' and in the terminal
avc@avc:~/LinuxCncRip/scripts$ cd ..
avc@avc:~/LinuxCncRip$ cd bin/
avc@avc:~/LinuxCncRip/bin$ sudo chmod 777 rtapi_app
avc@avc:~/LinuxCncRip/bin$ cd ..
avc@avc:~/LinuxCncRip$ cd scripts/
avc@avc:~/LinuxCncRip/scripts$ linuxcnc
LINUXCNC - 2.8.1
Machine configuration directory is '/home/avc/linuxcnc/configs/Maquina_ethercat'
Machine configuration file is 'maquinaEthercat.ini'
Starting LinuxCNC...
Found file(REL): ./maquinaEthercat.hal
Note: Using POSIX non-realtime
.
.
.
.