[syslog-ng]stresstest

[Sangbutsarakum, Patai]

I'm going to implement central log server in my datacenter to
accept many tons of log from many servers and equipments.
I'm newbies in syslog-ng, I've run stresstest.sh on my solaris 2.6 [
2SPARCs, 1 GB RAM]
[I've use version 1.4.15] after run just a moment.
It show "Segmentation Fault".

What does it means for syslog-ng [can't tolerate] or my machine is suck?
Should I concern about this? what should i do ?
Please suggest
Patrick