dbouce.so: cannot open shared object file

Hi,

after loading dbounce in my machine.hal, LinuxCNC exits with the following error message:

dbounce: dlopen: /usr/lib/linuxcnc/modules/dbounce.so: cannot open shared object file: No such file or directory

All other realtime components load fine so far. I checked the path but dbounce.so is present at /usr/lib/linuxcnc/modules/.
The error shows up as soon as I try load the component with
loadrt dbounce names=dbounce_probe

The machine runs fine now for 3 years. LinuxCNC is 2.8 on Debian 9.13.0. My "old" config can be found here but it doesn't include the changes I just tried to make: github.com/hausen8/AL_1105

Any help is appreciated,
Tilman

Well, I could but since I called all components with names, I would like to keep this order. I just had the idea to check owner and rights, assuming that all modules shold have the same owner/group/permissions.

What if I copy dbounce.so from another computer with LCNC 2.8 into this folder? Could this work?

Surely not because debounce will be loaded with filter groups (loadrt debounce cfg=N,N).

But you're right: Instead of wasting time trying to get dbouce working I should rather give debounce a try.

I almost forgot this topic but I should post at least what was wrong:

In fact dbounce.so was missing. Adding the module solved the problem. Besides I know two more cases with missing dbounce.so. At least in one case it was LCNC 2.8.4, like in my case. Is it possible that in 2.8.4 this module is simply missing?

Kind regards,
Tilman

It is in the source:

github.com/LinuxCNC/linuxcnc/blob/2.8/sr...ponents/dbounce.comp