here is a valgrind
root@debian:~# cat test.sh
. /etc/apache2/envvars
valgrind apache2 -X
root@debian:~# ./test.sh
==17127== Memcheck, a memory error detector
==17127== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==17127== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==17127== Command: apache2 -X
==17127==
[Thu Aug 09 10:28:46 2012] [warn] NameVirtualHost *:80 has no VirtualHosts
Loading webgui.conf
Starting WebGUI 7.10.24
==17130==
==17130== HEAP SUMMARY:
==17130== in use at exit: 131,990,986 bytes in 1,832,636 blocks
==17130== total heap usage: 3,445,949 allocs, 1,613,313 frees,
303,771,341 bytes allocated
==17130==
==17127== Jump to the invalid address stated on the next line
==17127== at 0x23204B60: ???
==17127== by 0x8BB9BAB: Perl_convert (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8BC18B5: Perl_utilize (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8BEF486: Perl_yyparse (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8C67BB1: ??? (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8C7204E: Perl_pp_require (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8C2D9B5: Perl_runops_standard (in
/usr/lib/libperl.so.5.14.2)
==17127== by 0x8BC8E05: Perl_eval_sv (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x895D4B5: modperl_require_module (in
/usr/lib/apache2/modules/mod_perl.so)
==17127== by 0x8954FB6: ??? (in /usr/lib/apache2/modules/mod_perl.so)
==17127== by 0x8C63CDB: Perl_leave_scope (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8BCE299: perl_parse (in /usr/lib/libperl.so.5.14.2)
==17127== Address 0x23204b60 is not stack'd, malloc'd or (recently) free'd
==17127==
==17127==
==17127== Process terminating with default action of signal 11 (SIGSEGV)
==17127== Access not within mapped region at address 0x23204B60
==17127== at 0x23204B60: ???
==17127== by 0x8BB9BAB: Perl_convert (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8BC18B5: Perl_utilize (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8BEF486: Perl_yyparse (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8C67BB1: ??? (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8C7204E: Perl_pp_require (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8C2D9B5: Perl_runops_standard (in
/usr/lib/libperl.so.5.14.2)
==17127== by 0x8BC8E05: Perl_eval_sv (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x895D4B5: modperl_require_module (in
/usr/lib/apache2/modules/mod_perl.so)
==17127== by 0x8954FB6: ??? (in /usr/lib/apache2/modules/mod_perl.so)
==17127== by 0x8C63CDB: Perl_leave_scope (in /usr/lib/libperl.so.5.14.2)
==17127== by 0x8BCE299: perl_parse (in /usr/lib/libperl.so.5.14.2)
==17127== If you believe this happened as a result of a stack
==17127== overflow in your program's main thread (unlikely but
==17127== possible), you can try to increase the size of the
==17127== main thread stack using the --main-stacksize= flag.
==17127== The main thread stack size used in this run was 8388608.
==17127==
==17127== HEAP SUMMARY:
==17127== in use at exit: 278,062 bytes in 2,222 blocks
==17127== total heap usage: 4,751,534 allocs, 4,749,312 frees,
601,393,165 bytes allocated
==17127==
==17127== LEAK SUMMARY:
==17127== definitely lost: 57,366 bytes in 1,482 blocks
==17127== indirectly lost: 264 bytes in 7 blocks
==17127== possibly lost: 0 bytes in 0 blocks
==17127== still reachable: 220,432 bytes in 733 blocks
==17127== suppressed: 0 bytes in 0 blocks
==17127== Rerun with --leak-check=full to see details of leaked memory
==17127==
==17127== For counts of detected and suppressed errors, rerun with: -v
==17127== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 132 from 8)
./test.sh: line 2: 17127 Segmentation fault valgrind apache2 -X
root@debian:~# ==17130== LEAK SUMMARY:
==17130== definitely lost: 52,478 bytes in 1,338 blocks
==17130== indirectly lost: 0 bytes in 0 blocks
==17130== possibly lost: 478 bytes in 25 blocks
==17130== still reachable: 131,938,030 bytes in 1,831,273 blocks
==17130== suppressed: 0 bytes in 0 blocks
==17130== Rerun with --leak-check=full to see details of leaked memory
==17130==
==17130== For counts of detected and suppressed errors, rerun with: -v
==17130== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 69 from 8)
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