On Tuesday, August 16, 2011 09:54:51 AM Farzin Kamangar did opine:
> Dear EMC users,
> I have a problem when starting EMC2. I have enclosed the error-file
> with this email. Sometimes I do not have this problem at all when
> exiting EMC and running it again many times. But I cannot run EMC when
> the problem starts. It keeps on giving the same error (non stop). I
> have to restart the computer to be able to run EMC again.
> What should I do to get rid of it? Do you think if it is related to
> mother-board or some other hardware or BIOS configuration? Thanks for
> the help in advance.
> Farzin
Just a SWAG here Farzin, but I wonder if something is causing the printer
driver 'lp' to be loaded, which would grab that port, making it un-
available for emc? When this occurs, do an lsmod, (and post it here) there
should not be any parport 'lp' stuff showing when emc is not running as it
has its own module for that.
On my machine I see this in my lsmod output:
parport_pc 25637 2
parport 30764 3 lp,ppdev,parport_pc
However I also have a startech 1 port extra parport card in the box, and I
am using it for emc, so there is no conflict. IIRC the module you do NOT
want to see is the 'lp' module. Can you try forcibly unloading it? I just
did here without any errors, just this warning:
gene@shop:~$ sudo modprobe -r lp
[sudo] password for gene:
WARNING: All config files need .conf: /etc/modprobe.d/emc2, it will be
ignored in a future release.
Here is that file for completeness:
---
# Remove the '#' before 'install' below to prevent regular Linux programs
# from accessing the parallel port. This also means that the linux
# parport number may not be used to identify the port in loadrt
hal_parport.
#install parport_pc /bin/true
---
So the disabled load (the last line) is not in effect on my box ATM. You
can remove that last comment, it may well fix your problem for good. To
remove the warning I just got, cd to /etc/modprobe.d and do a 'sudo mv emc2
emc.conf'
That may not be the problem, in which case you can safely ignore me. ;-)
Cheers, gene
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