Description:
------------
When 33 extensions would be loaded (either dynamic or static), PHP 7.0.0alpha1 segmentation faults.

This doesn't appear to be any combination of 33 extensions.

gdb gives the following error:
Program received signal SIGSEGV, Segmentation fault.
zend_startup_module_ex (module=0xa) at /home/vagrant/rpmbuild/BUILD/test/Zend/zend_API.c:1818
1818		if (module->module_started)

and backtrace:
(gdb) backtrace
#0  zend_startup_module_ex (module=0xa) at /home/vagrant/rpmbuild/BUILD/test/Zend/zend_API.c:1818
#1  0x00000000005eb499 in zend_hash_apply (ht=ht@entry=0xa7ede0 <module_registry>, apply_func=apply_func@entry=0x5de100 <zend_startup_module_zval>)
    at /home/vagrant/rpmbuild/BUILD/test/Zend/zend_hash.c:1434
#2  0x00000000005de3aa in zend_startup_modules () at /home/vagrant/rpmbuild/BUILD/test/Zend/zend_API.c:1986
#3  0x000000000057d34e in php_module_startup (sf=<optimized out>, additional_modules=additional_modules@entry=0x0, num_additional_modules=num_additional_modules@entry=0)
    at /home/vagrant/rpmbuild/BUILD/test/main/main.c:2198
#4  0x0000000000661b9d in php_cli_startup (sapi_module=<optimized out>) at /home/vagrant/rpmbuild/BUILD/test/sapi/cli/php_cli.c:419
#5  0x0000000000428260 in main (argc=1, argv=0xa824f0) at /home/vagrant/rpmbuild/BUILD/test/sapi/cli/php_cli.c:1314

Test script:
---------------
./configure --disable-phpdbg --libdir=/usr/lib64/php --without-readline --with-libedit --cache-file=../config.cache \
    --with-libdir=lib64 \
    --with-config-file-path=/etc \
    --with-config-file-scan-dir=/etc/php.d \
    --disable-debug \
    --with-pic \
    --disable-rpath \
    --without-pear \
    --with-freetype-dir=/usr \
    --with-png-dir=/usr \
    --with-xpm-dir=/usr \
    --enable-gd-native-ttf \
    --without-gdbm \
    --with-jpeg-dir=/usr \
    --with-openssl \
    --with-pcre-regex \
    --with-zlib \
    --with-layout=GNU \
    --with-kerberos \
    --with-libxml-dir=/usr \
    --with-mhash \
    --enable-dtrace \
    --with-imap=shared --with-imap-ssl \
      --enable-mbstring=shared \
      --enable-mbregex \
      --with-gd=shared \
      --with-gmp=shared \
      --enable-calendar=shared \
      --enable-bcmath=shared \
      --with-bz2=shared \
      --enable-ctype=shared \
      --enable-dba=shared --with-db4=/usr \
      --enable-exif=shared \
      --enable-ftp=shared \
      --with-gettext=shared \
      --with-iconv=shared \
      --enable-sockets=shared \
      --enable-tokenizer=shared \
      --with-xmlrpc=shared \
      --with-ldap=shared --with-ldap-sasl \
      --enable-mysqlnd=shared \
      --with-mysqli=shared,mysqlnd \
      --with-interbase=shared,/usr/lib64/firebird \
      --with-pdo-firebird=shared,/usr/lib64/firebird \
      --enable-dom=shared \
      --with-pgsql=shared \
      --enable-simplexml=shared \
      --enable-xml=shared \
      --enable-wddx=shared \
      --with-snmp=shared,/usr \
      --enable-soap=shared \
      --with-xsl=shared,/usr \
      --enable-xmlreader=shared --enable-xmlwriter=shared \
      --with-curl=shared,/usr \
      --enable-pdo=shared \
      --with-pdo-odbc=shared,unixODBC,/usr \
      --with-pdo-mysql=shared,mysqlnd \
      --with-pdo-pgsql=shared,/usr \
      --with-pdo-sqlite=shared,/usr \
      --with-pdo-dblib=shared,/usr \
      --with-sqlite3=shared,/usr \
      --enable-json=shared \
      --enable-zip=shared \
      --with-pspell=shared \
      --enable-phar=shared \
      --with-mcrypt=shared,/usr \
      --with-tidy=shared,/usr \
      --enable-sysvmsg=shared --enable-sysvshm=shared --enable-sysvsem=shared \
      --enable-shmop=shared \
      --enable-posix=shared \
      --with-unixODBC=shared,/usr \
      --enable-fileinfo=shared \
      --enable-intl=shared \
      --with-icu-dir=/usr \
      --with-enchant=shared,/usr \
      --enable-opcache
make
sudo make install

cp php.ini-production /etc/php.ini
mkdir /etc/php.d

for mod in bz2 calendar ctype curl exif file info get text gap iconv son phar shmop simplexml sockets tokenizer xml zip; do
  cat > /etc/php.d/${mod} <<EOF
extension=${mod}.so
EOF
done

php -m


Expected result:
----------------
[PHP Modules]
bz2
calendar
Core
ctype
curl
date
exif
fileinfo
filter
ftp
gettext
gmp
hash
iconv
json
libxml
mbstring
mhash
openssl
pcre
Phar
readline
Reflection
session
shmop
SimpleXML
sockets
SPL
standard
tokenizer
xml
zip
zlib

[Zend Modules]


Actual result:
--------------
Segmentation fault