After installing requested rpm from debug repository, I was able to obtain this report: root@edoras:/root # systemd-coredumpctl gdb 8490 TIME PID UID GID SIG EXE Mon 2015-01-05 04:33:13 CET 8490 30 8 11 /usr/sbin/httpd2-prefork GNU gdb (GDB; openSUSE 13.1) 7.6.50.20130731-cvs Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-suse-linux". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://bugs.opensuse.org/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word". .. Reading symbols from /usr/sbin/httpd2-prefork...Reading symbols from /usr/lib/debug/usr/sbin/httpd2-prefork.debug...done. done. [New LWP 8490] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `/usr/sbin/httpd2-prefork -f /etc/apache2/httpd.conf -DSSL -DSTATUS -D SYSTEMD -'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f7c9c2b39dd in zend_stack_push (stack=stack@entry=0x7f7c9c7e6a88 <compiler_globals+616>, element=element@entry=0x7f7c9c7e6a68 <compiler_globals+584>, size=size@entry=32) at /usr/src/debug/php-5.4.20/Zend/zend_stack.c:42 42 /usr/src/debug/php-5.4.20/Zend/zend_stack.c: No such file or directory. (gdb) No help from anyone? I have tenth of dumps each day since months, and no clues to resolve it? Apache need to be restarted each day!