I have tried this with 3.3.7 and even with this version the syslog-ng daemon hangs...( the prompt is not received back).
Below is the debug output.
# /opt/soe/local/syslog-ng-3.3.7/sbin/syslog-ng -Fvde
nanosleep() is not accurate enough to introduce minor stalls on the reader side, multi-threaded performance may be affected;
Trying to open module; module='affile', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libaffile.so'
Trying to open module; module='afprog', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libafprog.so'
Trying to open module; module='afsocket', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libafsocket.so'
Trying to open module; module='afuser', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libafuser.so'
Trying to open module; module='basicfuncs', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libbasicfuncs.so'
Trying to open module; module='csvparser', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libcsvparser.so'
Trying to open module; module='dbparser', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libdbparser.so'
Trying to open module; module='syslogformat', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libsyslogformat.so'
Trying to open module; module='afstreams', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libafstreams.so'
Starting to read include file; filename='/opt/soe/local/syslog-ng-3.3.7/etc/scl.conf', depth='1'
Global value changed; define='scl-root', value='/opt/soe/local/syslog-ng-3.3.7/share/include/scl'
Global value changed; define='include-path', value='/opt/soe/local/syslog-ng-3.3.7/etc:/opt/soe/local/syslog-ng-3.3.7/share/include'
Starting to read include file; filename='/opt/soe/local/syslog-ng-3.3.7/etc/modules.conf', depth='2'
Trying to open module; module='syslogformat', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libsyslogformat.so'
Attempted to register the same plugin multiple times, ignoring; context='format', name='syslog'
Trying to open module; module='basicfuncs', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libbasicfuncs.so'
Attempted to register the same plugin multiple times, ignoring; context='template-func', name='echo'
Attempted to register the same plugin multiple times, ignoring; context='template-func', name='grep'
Attempted to register the same plugin multiple times, ignoring; context='template-func', name='if'
Attempted to register the same plugin multiple times, ignoring; context='template-func', name='indent-multi-line'
Trying to open module; module='afsocket', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libafsocket.so'
Attempted to register the same plugin multiple times, ignoring; context='source', name='unix-stream'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='unix-stream'
Attempted to register the same plugin multiple times, ignoring; context='source', name='unix-dgram'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='unix-dgram'
Attempted to register the same plugin multiple times, ignoring; context='source', name='tcp'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='tcp'
Attempted to register the same plugin multiple times, ignoring; context='source', name='tcp6'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='tcp6'
Attempted to register the same plugin multiple times, ignoring; context='source', name='udp'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='udp'
Attempted to register the same plugin multiple times, ignoring; context='source', name='udp6'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='udp6'
Attempted to register the same plugin multiple times, ignoring; context='source', name='syslog'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='syslog'
Trying to open module; module='affile', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libaffile.so'
Attempted to register the same plugin multiple times, ignoring; context='source', name='file'
Attempted to register the same plugin multiple times, ignoring; context='source', name='pipe'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='file'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='pipe'
Trying to open module; module='afprog', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libafprog.so'
Attempted to register the same plugin multiple times, ignoring; context='source', name='program'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='program'
Trying to open module; module='afuser', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libafuser.so'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='usertty'
Trying to open module; module='dbparser', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libdbparser.so'
Attempted to register the same plugin multiple times, ignoring; context='parser', name='db-parser'
Trying to open module; module='csvparser', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libcsvparser.so'
Attempted to register the same plugin multiple times, ignoring; context='parser', name='csv-parser'
Finishing include; filename='/opt/soe/local/syslog-ng-3.3.7/etc/modules.conf', depth='2'
Starting to read include file; filename='/opt/soe/local/syslog-ng-3.3.7/share/include/scl/system/plugin.conf', depth='2'
Trying to open module; module='confgen', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libconfgen.so'
Finishing include; filename='/opt/soe/local/syslog-ng-3.3.7/share/include/scl/system/plugin.conf', depth='2'
Starting to read include file; filename='/opt/soe/local/syslog-ng-3.3.7/share/include/scl/pacct/plugin.conf', depth='2'
Finishing include; filename='/opt/soe/local/syslog-ng-3.3.7/share/include/scl/pacct/plugin.conf', depth='2'
Starting to read include file; filename='/opt/soe/local/syslog-ng-3.3.7/share/include/scl/syslogconf/plugin.conf', depth='2'
Trying to open module; module='confgen', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libconfgen.so'
Finishing include; filename='/opt/soe/local/syslog-ng-3.3.7/share/include/scl/syslogconf/plugin.conf', depth='2'
Finishing include; filename='/opt/soe/local/syslog-ng-3.3.7/etc/scl.conf', depth='1'
Trying to open module; module='afstreams', filename='/opt/soe/local/syslog-ng-3.3.7/lib/syslog-ng/libafstreams.so'
Attempted to register the same plugin multiple times, ignoring; context='source', name='sun-streams'
Finishing include; content='source confgen system', depth='1'
Running application hooks; hook='1'
Running application hooks; hook='3'
syslog-ng starting up; version='3.3.7'
Not sure if the issue points to some issues with my system or syslog-ng..
Rakesh.