(gdb) bt
#0 0x00000000 in ?? ()
#1 0x0127626f in php_hash_environment () at
/data/wez/php-HEAD/main/php_variables.c:648
#2 0x0126a2ce in php_request_startup () at /data/wez/php-HEAD/main/main.c:1064
#3 0x01310e01 in php_apache_request_ctor (r=0x8fc8200, ctx=0x8fc9a20)
at /data/wez/php-HEAD/sapi/apache2handler/sapi_apache2.c:438
#4 0x01311302 in php_handler (r=0x8fc8200) at
/data/wez/php-HEAD/sapi/apache2handler/sapi_apache2.c:527
#5 0x0021e9f7 in ap_run_handler () from /usr/sbin/httpd
php_hash_environment() is calling sapi_module.treat_data() without
first verifying that it is set to something sane, leading to the
crash.
I've committed a fix, simply checking if treat_data is NULL before
attempting to call it; this makes things work again for me.
--Wez.