and also "-k stop" don't remove them
read HTTPD_PID < "$PROFILE_ROOT/logs/httpd.pid"
$HTTPD_BINARY -f "$PROFILE_ROOT/httpd.conf" -k stop
exit 0
[builduser@testserver:/rpmbuild/PHP-PGO]$ ipcs -m | wc -l
12
[builduser@testserver:/rpmbuild/PHP-PGO]$ ./profile.sh
https://bz.apache.org/bugzilla/show_bug.cgi?id=7838
that still happens with 2.4.25
"killall httpd 2> /dev/null" in a script starting a temporary httpd for
php-pgo-profiling since it's a SIGTERM should not leave them and finally
fail after enough runs to allocate shm segment for auth_digest
