On Mon, 27 May 2019 at 23:50, John Dammeyer <[email protected]> wrote:

>
> But it was there once.  So far only a reboot has fixed this.  I'm not sure
> why.


Sometimes you can end up with kernel modules that claim to be dependent on
each other, and the kernel won't let either fo them go.
(at this point it is rather out of LinuxCNC's hands)

You can diagnose this situation with lsmod.
You may find that hal_parport is still there, and in theory  modprobe
should be able to unload it, but sometimes it seems to refuse to try.

What does it actually say in the middle section of the error dump? (That is
typically where the useful information is, and in the last few lines of the
dmesg output)

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916

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