Asterisk 1.4 autoload modules seg fault

I am finding asterisk seg fault at startup but if I change to
autoload=no in modules.conf and then run this in /usr/lib/modules/asterisk

 find .|awk '{ ch=substr($1,3); print substr(ch,0,length(ch)-2) }'| xargs -I themod  -n 1 asterisk -rx "module load themod" 

Everything is fine.

Are there other placed asterisk loads modules from?
How can I work out what is happening more precisely?