segfault with PHP

[dogmatic69]

I just installed Couchbase and PHP segfaults. Any idea? Below is from bash history and the output.

# wget http://packages.couchbase.com/releases/2.2.0/couchbase-server-community_2.2.0_x86_64.rpm
# rpm --install couchbase-server-community_2.2.0_x86_64.rpm
# yum install libcouchbase2-core.x86_64
# yum install libcouchbase-devel.x86_64
# yum install libcouchbase2-bin.x86_64
# pecl install couchbase
# echo 'extension=couchbase.so' > /etc/php.d/couchbase.ini

At this point couchbase server is running fine, I can make buckets etc.

# php
Segmentation fault

If I remove / comment out the couchbase php extension in the .ini php works again