If apport is enabled (by "sudo service apport start force_start=1") and a program crashes with segfault (signal 11), a crash file should have been written to directory /var/crash.
How to get a backtrace of apache2 is documented at /usr/share/doc/apache2.2-common/README.backtrace
If apport is enabled (by "sudo service apport start force_start=1") and a program crashes with segfault (signal 11), a crash file should have been written to directory /var/crash.
How to get a backtrace of apache2 is documented at /usr/share/ doc/apache2. 2-common/ README. backtrace