Apache2 segmentation fault errors after every midnight

Solution 1:

Find the crash dump and get a stack trace with human readable symbols from it.

Install debug symbol packages for at least httpd. Install gdb.

Determine where core dumps go. See man core for more details.

cat /proc/sys/kernel/core_pattern

If prefixed with a pipe (|), you have a crash processing system and reports probably save to /var/crash/. Get the trace with apport-retrace --stdout

If a file name pattern, core dumps go there. Read the gdb manual on how to load a core file.

With the symbols, you can tell where the crash is, and can report this to your Apache HTTPD support channel.