The crash happens after a random (half) hours at with my busy visited website +/- 2 mil. pageviews a month.
Lots of these messages in my apache error_log
[Thu Jun 28 15:51:13 2001] [notice] child pid 21954 exit signal Segmentation fault (11)
apachectl restart won't help!! only apachectl stop and start makes it work again.

all the configure and compile went good!
I already tried it with apc enabled and disabled in php.ini with no results.
this is my configure string:

 './configure' '--with-config-file-path=/www' '--with-apache=../apache_1.3.20' '--with-mcrypt=../libmcrypt-2.4.11' '--with-mysql=/usr/local/mysql' '--with-openssl=/usr/local/openssl' '--with-zlib-dir=/usr/local' '--with-zlib=/usr/local' '--with-gd=/usr/local' '--with-jpeg-dir=/usr/local' '--with-png-dir=/usr/local' '--with-freetype-dir=/usr/local' '--with-ttf' '--enable-gd-native-ttf' '--with-xml' '--disable-debug' '--enable-memory-limit' '--enable-shared' '--enable-track-vars' '--enable-trans-sid' '--enable-versioning' '--enable-magic-quotes' '--enable-bcmath' '--enable-apc'

php405 worked great but then I was unable to configure gd and freetype.