Compile Linux Kernel ,RTAI and LinuxCNC from Source Code

Please post your dmesg after running the test suite but before rebooting.

It looks like you built it properly.

Sorry i had reboot..... I Sorry ...

if you want to look the mesg. i can compile RTAI again.

Post your dmesg after running the test suite but before rebooting.

You don't have to recompile.

I will not likely look at it for 12+ hours from now.

xxx@xxx:/usr/realtime/testsuite$ sudo ./run
[sudo] password for bodor:
.runinfo is /usr/realtime/testsuite/.runinfo
No RTAI modules loaded.
Running insmod on /usr/realtime/testsuite/.runinfo...
CANNOT FIND MAILBOX
Cleaning up...
RTAI successfully unloaded.
Removing /tmp/runinfo...
Done.

Post your dmesg after running the test suite but before rebooting.

Run: $ dmesg

It will likely be a big text file that you can add as an attachment to the post here.

dmesg
[ 0.000000] microcode: microcode updated early to revision 0x28, date = 2019-11-12
[ 0.000000] Linux version 4.19.152-rtai-amd64 (root@xxx) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12)) #1 Wed May 19 11:14:24 CST 2021
.....

dmesg

Sorry...dmesg file

I feel i'm about to give up
When I compile linuxcnc, I encountered a problem

1 ./configure

checking for g++... g++
checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking how to run the C++ preprocessor... g++ -E
......
2 make // error:

......
LD [M] /home/xxx/Downloads/linuxcnc-2.8.1/src/mesa_uart.o
CC [M] /home/xxx/Downloads/linuxcnc-2.8.1/src/objects/hal/drivers/pcl720.o
scripts/Makefile.build:303: recipe for target '/home/xxx/Downloads/linuxcnc-2.8.1/src/objects/hal/drivers/pcl720.o' failed
Makefile:1550: recipe for target '_module_/home/xxx/Downloads/linuxcnc-2.8.1/src' failed
make[1]: Leaving directory '/usr/src/linux-headers-4.19.152-rtai-amd64'
/home/xxx/Downloads/linuxcnc-2.8.1/src/objects/hal/drivers/pcl720.c:172:25: error: expected ‘)’ before ‘->’ token
#define out (__comp_inst->out)
^
./include/linux/logic_pio.h:32:9: note: in expansion of macro ‘out’
void (*out)(void *hostdata, unsigned long addr, u32 val,
^
make[2]: *** [/home/xxx/Downloads/linuxcnc-2.8.1/src/objects/hal/drivers/pcl720.o] Error 1
make[1]: *** [_module_/home/xxx/Downloads/linuxcnc-2.8.1/src] Error 2
Makefile:465: recipe for target 'modules' failed
make: *** [modules] Error 2

I noticed you're using Ubuntu 16.04, you may not be able to use the prepackaged debs.
Are you intending to add a parallel port card to your machine ?
How are you intending to control your cnc machine ?