I can reproduce this on Debian sid. Somehow openssl's int_free_ex_data() calls a free_func that points into nirvana. I guess this may be due to all the libraries being loaded, unloaded and then loaded again during apache config parsing. Some library using ssl may do the wrong thing during unloading and openssl gets confused. I think libpq is the primary suspect here.
** Attachment added: "backtrace with debug information" https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1232469/+attachment/3904134/+files/gdb.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to apache2 in Ubuntu. https://bugs.launchpad.net/bugs/1232469 Title: Apache coredump when started with dbd and php5 enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1232469/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs