Description of problem:
httpd segfaults


Version-Release number of selected component (if applicable):
httpd-2.4.17-2.fc24

How reproducible:
always after the update, got notification by https://apps.fedoraproject.org/koschei/package/ipv6calc


Steps to Reproduce:

rebuild ipv6calc for latest F24

https://apps.fedoraproject.org/koschei/build/974245


Actual results:
./test_mod_ipv6calc.sh: line 270: 15897 Segmentation fault      (core dumped) /usr/sbin/httpd -X -e info -d $dir_base


Expected results:
working build like before with httpd-2.4.16-1.fc24 	


Additional info:

gdb of core dump:

$ gdb /usr/sbin/httpd core.15897 
GNU gdb (GDB) Fedora 7.10-29.fc24
Copyright (C) 2015 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-redhat-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
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/httpd...Reading symbols from /usr/lib/debug/usr/sbin/httpd.debug...done.
done.
[New LWP 15897]
[New LWP 15899]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/sbin/httpd -X -e info -d /tmp/mod_ipv6calc.nDbc2'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  ap_mpm_pod_check (pod=0x0) at mpm_unix.c:459
459	    rv = apr_file_read(pod->pod_in, &c, &len);
[Current thread is 1 (Thread 0x7fd7d9ba48c0 (LWP 15897))]
Missing separate debuginfos, use: dnf debuginfo-install bzip2-libs-1.0.6-17.fc23.x86_64 bzip2-libs-1.0.6-17.fc24.x86_64 IP2Location-7.0.1-4.fc23.x86_64 libgcc-5.1.1-4.fc23.x86_64 libnghttp2-1.3.4-1.fc24.x86_64
(gdb) bt
#0  ap_mpm_pod_check (pod=0x0) at mpm_unix.c:459
#1  0x00007fd7cee53b3d in child_main (child_num_arg=child_num_arg@entry=0, child_bucket=child_bucket@entry=0) at prefork.c:735
#2  0x00007fd7cee53d52 in make_child (s=0x5583f80d13f0, slot=slot@entry=0, bucket=bucket@entry=0) at prefork.c:770
#3  0x00007fd7cee552c2 in prefork_run (_pconf=<optimized out>, plog=0x5583f80d73a8, s=0x5583f80d13f0) at prefork.c:989
#4  0x00005583f60d1c7e in ap_run_mpm (pconf=0x5583f80aa188, plog=0x5583f80d73a8, s=0x5583f80d13f0) at mpm_common.c:94
#5  0x00005583f60cb307 in main (argc=6, argv=0x7ffe7d0995f8) at main.c:777

Looks like this issue is not related to my mod_ipv6calc module