Syslog-ng POLLERR occurred while idle; fd=’NN’

by BenV on Aug.05, 2011, under Software

While trying to craft a custom firewall traffic logger using iptables and syslog-ng to run it through a script I ran into this lovely error.
Syslog-ng is happy to spam 2458734597 lines (or more if you have lots of diskspace ;)) like this into your syslog:
Aug 5 15:11:47 ss syslog-ng[18731]: POLLERR occurred while idle; fd='17' Aug 5 15:11:47 ss syslog-ng[18731]: POLLERR occurred while idle; fd='16' Aug 5 15:11:47 ss syslog-ng[18731]: POLLERR occurred while idle; fd='17' Aug 5 15:11:47 ss syslog-ng[18731]: POLLERR occurred while idle; fd='16' Aug 5 15:11:47 ss syslog-ng[18731]: POLLERR occurred while idle; fd='17' Aug 5 15:11:47 ss syslog-ng[18731]: POLLERR occurred while idle; fd='16' Aug 5 15:11:47 ss syslog-ng[18731]: POLLERR occurred while idle; fd='17'
The reason was -not- that it could not be executed…. the reason was that the program (“test.sh”) quit (or at least closed its input) instantly.
Good to know for next time.