Mesa 7i97 Watchdog has bit!

This is the root of your latency issues:

cannot gain I/O privileges - forgot 'sudo make setuid'?
Note: Using POSIX non-realtime

Something is broken with your LinuxCNC installation
How did you Install LinuxCNC? (step by step)
Unless the latest LinuxCNC ISO is broken, I suspect
some installation problem
 

PCW wrote:

This is the root of your latency issues:

cannot gain I/O privileges - forgot 'sudo make setuid'?
Note: Using POSIX non-realtime

Something is broken with your LinuxCNC installation
How did you Install LinuxCNC? (step by step)
Unless the latest LinuxCNC ISO is broken, I suspect
some installation problem

 

Thanks very much for your reply.
I've been working on the hp elite 8300 without much luck. I've done the installation process multiple times with the same problem. I do not know if the bios security is causing such a malfunction, I tried everything with the same bad result.
I done the installation process right, that is easy and basic to do. I've done the same basic procedure on a Assus laptop i3, it never failed, never got a  ( Using POSIX non-realtime ).
This is the result of a latency test on the laptop
 
It is usable?
I'm trying to have something to  be able to make the 7i97 work and learn from this

It may be usable but in general laptops have power management
that cannot be disabled and will often have large latency spikes
(say when you adjust the display brightness)

I don't actually see what BIOS settings could have to do with
Linux permissions, that really looks like an installation issue of some
kind on the 8300.

PCW wrote:

It may be usable but in general laptops have power management
that cannot be disabled and will often have large latency spikes
(say when you adjust the display brightness)

I don't actually see what BIOS settings could have to do with
Linux permissions, that really looks like an installation issue of some
kind on the 8300.

Thanks for your reply
I've been investing so many days in trying to make the 7i97 works,  I need some advice to get me out of this loop.
Here are the different options i see, perhaps there are others, please share yours opinion:
a) To forget about the 7i97, try to sell away and go back to something a have experience ie: 5i20+  7i37 etc (I have a old PC i can use with that)
b) Buy another PC, but wich one??, I would need to know something will run without so much problems, and finally be able to use the 7i97
c) Deactivate the lan on the motherboard on the 8300, and put a new PCI lan card (I do not know if it can be done on the 8300)
c) PCW, your 8300 run a 4.19.23-rt14, mine 4.19.0-18. Could I Compile e new linuxCNC on the PC, I have no experience but I can learn how to do that. It could solve the problem?

I would much appreciate any idea, so thanks in advance
PD: I have documented  the installation process on the 8300, just in case it would be worth to share and see if something was made wrong. So tell me if I should upload images of all the process, I do not like to waste others people time.




 

Yeah I don't understand why this is happening:

arnold@cnchp:~$ latency-histogram --nobase --sbinsize 1000
cannot gain I/O privileges - forgot 'sudo make setuid'?

But that's a showstopper and really does point to an installation issue
so maybe posting your installation process would help.

Note that using different hardware would not really make a difference
since all real time programs require root access via setuid regardless
of interface hardware (notice even the latency histogram cannot run properly)

Question:
Did you by any chance enter a root pasword when installing to hard drive?
That will set Linux in Multi user mode, so a lot of things will have permissions issues.
When asked for a root password just click next, do not eneter anything.