I am not able to log the apache2 crashes in CoreDumpDirectory on ubuntu 10.10. I am using Django 1.2.3 and apache2 with mod_wsgi. I followed the steps listed in response to this question but to no avail. I added - CoreDumpDirectory /var/cache/apache2/
at the end of apache2.conf file and then after executing
'ulimit -c unlimited', restarted the apache server. Then I replicated the condition that causes apache error log to show- "child pid 27288 exit signal Segmentation fault (11)" but there is no mention of apache2 logging that crash in CoreDumpDirectory and also there is nothing in /var/cache/apache2.
I was able to solve this problem. The issue was with PyLucene environment being initialized on the run time. I was executing initvm() call everytime a request comes and it was causing segmentation fault. This link directed that I should do it in .wsgi file and after I did that there were no segmentation faults.