root@debian:~# ./test.sh
GNU gdb (GDB) 7.4.1-debian
Copyright (C) 2012 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-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/sbin/apache2...(no debugging symbols found)...done.
(gdb) set args -X
(gdb) run
Starting program: /usr/sbin/apache2 -X
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Mon Aug 13 16:26:54 2012] [warn] NameVirtualHost *:80 has no VirtualHosts
	Loading webgui.conf

Starting WebGUI 7.10.24

Program received signal SIGSEGV, Segmentation fault.
0x00007fffe7d4eb60 in ?? ()
(gdb) bt
#0  0x00007fffe7d4eb60 in ?? ()
#1  0x00007ffff4149bac in Perl_convert () from /usr/lib/libperl.so.5.14
#2  0x00007ffff41518b6 in Perl_utilize () from /usr/lib/libperl.so.5.14
#3  0x00007ffff417f487 in Perl_yyparse () from /usr/lib/libperl.so.5.14
#4  0x00007ffff41f7bb2 in ?? () from /usr/lib/libperl.so.5.14
#5  0x00007ffff420204f in Perl_pp_require () from /usr/lib/libperl.so.5.14
#6  0x00007ffff41bd9b6 in Perl_runops_standard () from /usr/lib/libperl.so.5.14
#7  0x00007ffff4158e06 in Perl_eval_sv () from /usr/lib/libperl.so.5.14
#8  0x00007ffff44a94b6 in modperl_require_module ()
   from /usr/lib/apache2/modules/mod_perl.so
#9  0x00007ffff44a0fb7 in ?? () from /usr/lib/apache2/modules/mod_perl.so
#10 0x00007ffff41f3cdc in Perl_leave_scope () from /usr/lib/libperl.so.5.14
#11 0x00007ffff415e29a in perl_parse () from /usr/lib/libperl.so.5.14
#12 0x00007ffff44a1220 in modperl_startup ()
   from /usr/lib/apache2/modules/mod_perl.so
#13 0x00007ffff44a11b0 in modperl_startup ()
   from /usr/lib/apache2/modules/mod_perl.so
#14 0x00007ffff44a15d5 in modperl_init ()
   from /usr/lib/apache2/modules/mod_perl.so
#15 0x00007ffff44a172b in modperl_hook_init ()
   from /usr/lib/apache2/modules/mod_perl.so
#16 0x000055555559af11 in ap_run_open_logs ()
#17 0x0000555555585e8e in main ()
(gdb)