What could these repetitive error messages mean?

[Karjala]

Problem solved. Due to a temporary DNS problem I had, I was opening 2 
fetchmails to the server.


Karjala wrote:
> I'm getting the following messages in syslog every 5 minutes (I 
> fetchmail mail from cyrus every 5 minutes):
>
> Nov 18 09:19:09 localhost cyrus/master[1606]: process 2669 exited, 
> status 75
> Nov 18 09:19:09 localhost cyrus/master[1606]: service pop3s pid 2669 
> in BUSY state: terminated abnormally
> Nov 18 09:19:10 localhost cyrus/master[1606]: process 2670 exited, 
> status 75
>
> Why could this be happening?
>
> Thx.