Re: [lcd4linux] Scrolling Display

[Michael R. <re...@eu...>]

Hi Gary,

> I have tried to write a script that starts lcd4linux with an external
>  file, after a set time it stops lcd4linux and restarts it with the
> next .conf file.
> 
> this seemed to be working but now I am getting "LCD4Linux[27637]:
> fatal error: semget() failed: No space left on device" messages in my
> syslog file. The LCD freezes on one screen and I need to reboot to 
> restart it.

Do you get this error immediately, or from time to time only?

>From the semget() manpage:

> ENOSPC     A  semaphore  set has to be created but the system limit
> for the maximum number of semaphore sets (SEMMNI), or the system wide
> maximum number of semaphores (SEMMNS), would be exceeded.

SEMMNI and SEMMNS can be retrieved from /proc/sys/kernel/sem

LCD4Linux uses semaphores with threads only. Are you using threads
excessively?

Maybe your error comes from a old bug where lcd4linux did not terminate
child processes on exit. Did you try a vurrent SVN version?


HTH, Michael

-- 
Michael Reinelt <re...@eu...>
http://home.pages.at/reinelt
GPG-Key 0xDF13BA50
ICQ #288386781