Lighttpd

Trying to use memcache with php via mod_fcgi renders the following with debug set to 1:

titan:~# /etc/init.d/lighttpd restart
Restarting lighttpd: lighttpd.
titan:~# 2006-09-24 18:41:03: (mod_fastcgi.c.1323) --- fastcgi spawning local
        proc: /usr/bin/php4-cgi
        port: 0
        socket /tmp/php-fastcgi.socket
        min-procs: 1
        max-procs: 1
2006-09-24 18:41:03: (mod_fastcgi.c.1348) --- fastcgi spawning
        port: 0
        socket /tmp/php-fastcgi.socket
        current: 0 / 1
2006-09-24 18:41:03: (mod_fastcgi.c.1048) the fastcgi-backend /usr/bin/php4-cgi failed to start:
2006-09-24 18:41:03: (mod_fastcgi.c.1063) terminated by signal: 11
2006-09-24 18:41:03: (mod_fastcgi.c.1068) to be exact: it seg-fault, crashed, died, ... you get the idea.
2006-09-24 18:41:03: (mod_fastcgi.c.1070) If this is PHP try to remove the byte-code caches for now and try again.
2006-09-24 18:41:03: (mod_fastcgi.c.1356) [ERROR]: spawning fcgi failed.
2006-09-24 18:41:03: (server.c.834) Configuration of plugins failed. Going down.

Testing /usr/bin/php4-cgi from the command line generates no error.

Versions:

debian sarge

lighttpd 1.4.11

php 4.3.10

memcache 2.0.4

memcache installed using:

pear install memcache

Ideas?

-- andreas