Asterisk Crashing

Crashes every couple of days now. A couple of times it said something about astobj.c being null but now the error logs are not showing me what is causing the problem. How can we trouble shoot this?

Howdy,

wiki.asterisk.org/wiki/display/AST/Debugging

Note that the message about astobj and null suggests a memory management problem. These can be difficult, and you may need to enable thread debugging (some performance hit) or use valgrind (extreme performance hit).